Archives for posts with tag: chimpanzees

I can’t afford to think about that“[W]hy are balls of steel so rare in academia? Do they undergo a procedure?” – from greg cochran.

Species Do Not Exist“[T]he Endangered Species Act has shaky conceptual foundations…. And yet we somehow deal with the fact that the universe is complex when it comes to species, although not with races.” – from steve sailer. see also Should You Fear the Pizzly Bear? h/t werner jensen!

Catastrophes in evolution: Is Cuvier’s world extinct or extant?

Million year hominid dispersal event in Iberia“Archaeological remains dating to between 1 million to 780,000 years were also found on an excavation that has provided evidence of the first known human occupation in the Iberian Peninsula.” – h/t cultevobot!

Early Exit: When Did Modern Humans First Leave Africa?“[A] recent study in Proceedings of the National Academy of Sciences of the genes of indigenous people in southeast Asia has suggested a much earlier date for the first human explorers. Professor Katerina Harvati-Papatheodorou and lead author Hugo Reyes-Centeno of the University of Tubingen in Germany and their colleagues fed this genetic data into a computer model of migration and found that the best explanation was an African exodus around 130,000 years ago, more than twice as far back as most scientists think. They also suggested that this early wave took a different route, spreading along the south coasts of Arabia and Asia towards Australia.”

Early modern humans were ‘culturally diverse’ before they left Africa“Researchers have carried out the biggest ever comparative study of stone tools dating to between 130,000 and 75,000 years ago found in the region between sub-Saharan Africa and Eurasia. They have discovered there are marked differences in the way stone tools were made, reflecting a diversity of cultural traditions. The study has also identified at least four distinct populations, each relatively isolated from each other with their own different cultural characteristics.”

Indo-Europeans preceded Finno-Ugrians in Finland and Estonia“An archaic (Northwest-)Indo-European language and a subsequently extinct Paleo-European language were likely spoken in what is now called Finland and Estonia, when the linguistic ancestors of the Finns and the Sami arrived in the eastern and northern Baltic Sea region from the Volga-Kama region probably at the beginning of the Bronze Age.” – @dienekes’.

168 South Asian Genomes – @dienekes’.

Claim: Modern human teeth in southern China 70-125 ka BP – h/t razib!

The Most Violent Era In America Was Before Europeans Arrived“[A] new paper finds that the 20th century, with its hundreds of millions dead in wars and, in the case of Germany, China, Russia and other dictatorships, genocide, was not the most violent – on a per-capita basis that honor may belong to the central Mesa Verde of southwest Colorado and the Pueblo Indians. Writing in the journal American Antiquity, Washington State University archaeologist Tim Kohler and colleagues document how nearly 90 percent of human remains from that period had trauma from blows to either their heads or parts of their arms. ‘If we’re identifying that much trauma, many were dying a violent death,’ said Kohler. The study also offers new clues to the mysterious depopulation of the northern Southwest, from a population of about 40,000 people in the mid-1200s to 0 in 30 years.” – h/t hbd bibliography!

The ‘six universal’ facial expressions are not universal, cross-cultural study shows“It’s a con­cept that had become uni­ver­sally under­stood: humans expe­ri­ence six basic emotions — happiness, sad­ness, anger, fear, dis­gust, and surprise — and use the same set of facial move­ments to express them…. The only problem with this con­cept, according to North­eastern Uni­ver­sity Dis­tin­guished Pro­fessor of Psy­chology Lisa Feldman Bar­rett, is that it isn’t true at all…. [W]hat were assumed to be ‘psy­cho­log­ical uni­ver­sals’ may in fact be ‘Western’ — or per­haps even ‘American’ — cultural cat­e­gories.”

The intelligent pursuit of happiness“Intelligence is associated with health and longevity, and more intelligent children on average tend to live longer and healthier lives than less intelligent children, although it is not known why. Health is significantly associated with psychological well-being. So, it is possible that more intelligent individuals are more stable in their happiness over time because they are more likely to remain constantly healthy than less intelligent individuals.” – from dr. james thompson.

Clues emerge to genetic architecture of intelligence in children“‘When we computed the contribution of common variants to these cognitive abilities, we found that some of the contributions were substantial,’ said Hakonarson. For instance, common SNPs accounted for roughly 40 percent of the population differences in nonverbal reasoning, and 30 percent of the differences in language reasoning, with the balance of the differences attributable to rare variants and environmental factors. On the other hand, common gene variants together contributed to only 3 percent of the differences in spatial memory—the ability to navigate in a geographical location. There also were significant overlaps between trait domains. Reading ability, which was 43 percent attributable to common variants, was often inherited together with language reasoning abilities.” – h/t nolasco!

Lead released from African cookware contaminates food“Researchers tested 29 samples of aluminum cookware made in Cameroon and found almost all had considerable lead content. This cookware is common throughout Africa and Asia and is made from recycled scrap metal including auto and computer parts, cans, and other industrial debris. Lead exposure in children is linked to brain damage, mental retardation, lower educational performance, and a range of other health effects.” – h/t science enabled!

Facial fluctuating asymmetry is not associated with childhood ill-health in a large British cohort study – h/t jelte wicherts! who tweeted: “Contrary to several small N studies, large study finds no relationship between health measures & facial asymmetry.”

Structural Growth Trajectories and Rates of Change in the First 3 Months of Infant Brain Development – h/t simon baron-cohen! who tweeted: “Typical brain growth from birth to 3 months old: the brain grows 1% per day, and male brains grow faster.”

Workaholism: The addiction of this century“Workaholics scored higher on three personality traits: Agreeableness, Neuroticism, Intellect/Imagination.” – h/t claire lehmann!

Twins separated at birth reveal staggering influence of genetics“Segal, who wrote a book about the study called ‘Born Together Reared Apart: The Landmark Minnesota Twins Study’ (Harvard University Press, 2012), is now doing a prospective study of Chinese twins raised apart, often in different countries, by adoptive families.”

The association between grandparenthood and mortality – h/t neuroskeptic! who tweeted: “People who become grandparents at an early age tend to die sooner.” – because they have faster life histories?

Getting the babes but not the babies“Who’s making more babies? ‘Good boys’ or ‘bad boys’? Originally, the good boys were, thanks to parental monitoring of relations between single men and single women. The pendulum then swung toward the bad boys in the 1940s, only to swing back after the 1960s.” – from peter frost.

Population-level variability in the social climates of four chimpanzee societies – h/t erwin schmidt! who tweeted: “Some groups of chimpanzees are more egalitarian than others.”

Is empathy in humans and apes actually different? ‘Yawn contagion’ effect studied“Humans and bonobos are the only two species in which it has been demonstrated that yawn contagion follows an empathic trend, being more frequent between individuals who share a strong emotional bond, such as friends, kin, and mates…. Two features of yawn contagion were compared: how many times the individuals responded to others’ yawns and how quickly. Intriguingly, when the yawner and the responder were not friends or kin, bonobos responded to others’ yawns just as frequently and promptly as humans did. This means that the assumption that emotional contagion is more prominent in humans than in other species is not necessarily the case. However, humans did respond more frequently and more promptly than bonobos when friends and kin were involved, probably because strong relationships between humans are built upon complex and sophisticated emotional foundations linked to cognition, memory, and memories. In this case, the positive feedback linking emotional affinity and the mirroring process seems to spin faster in humans than in bonobos. In humans, such over-activation may explain the potentiated yawning response and also other kinds of unconscious mimicry response, such as happy, pained, or angry facial expressions.”

Self-regulatory failure and the perpetration of adolescent dating violence: Examining an alcohol use by gene explanation“[A]lcohol use was more strongly associated with dating violence among adolescents who had a high rather than a low multilocus genetic profile composed of five genetic markers that influence dopamine signaling. Alcohol use was more strongly related to dating violence among boys with long rather than short 5-HTTLPR alleles, the opposite of the prediction. MAOA-uVNTR did not interact with alcohol, but it had a main effect on dating violence by boys in later grades in the expected direction: boys with more low activity alleles perpetrated more dating violence. Exploratory analyses found variation in findings by race.” – h/t unsilenced science!

Take Two Sugar Pills and Call Me in the Morning“Over the past decade, a number of clinical studies have begun to show that people who improve on placebos are genetically different than those who don’t.” – h/t billare! see also here.

Designer babies: selection vs editing – @steve hsu’s.

Anxiety in invertebrates opens research avenues“[N]euronal mechanisms related to anxiety have been preserved throughout evolution. This analysis of ancestral behavior in a simple animal model opens up new avenues for studying the neuronal bases for this emotion.”

Our Microbiome May Be Looking Out for Itself – sneaky microbiome! h/t mr. robert ford!

New Study To Look At The Genetics Of Inflammatory Bowel Disease – from 23andMe.

Constitutional verbosity and social trust – h/t heartiste! who tweeted: “The more a nation’s people trust each other, the fewer words they need to codify that trust.”

War in the womb“A ferocious biological struggle between mother and baby belies any sentimental ideas we might have about pregnancy” -h/t charles!

Head Count – ‘Malthus,’ by Robert J. Mayhew

New Saudi ban on marriage to foreigners stirs controversy“[A] new law bans Saudi men from marrying women from Pakistan, Bangladesh, Chad and Burma.” (not a big surprise from the najdis.)

Avoid marrying kin, behave ‘softly on first night’“A notice from the Health Ministry [of turkey-h.chick] on ‘Consultancy before Marriage’ has highlighted that one out of every five marriages are among kin. The recently released document also includes sexual advice for couples, especially for the ‘first night.’ ‘Consanguineous marriage is mostly among first-degree relatives, increasing the number of rare genetic diseases,’ it said. ‘This matter is noteworthy. Those who are married to kin and those who carry genetic diseases should consult a health institution before gestation.'” – h/t anatoly karlin!

Avoiding Prince Joffrey: Primates have newly discovered ability that stops inbreeding“[N]ew research in macaques has revealed for the first time that primates are able to recognise their own relatives. The researchers opted for macaques rather than chimps for their study as the former lives in larger groups with more relatives; allowing them to pick distantly related monkeys who haven’t met, they could rule out ‘familiarity’ as a way for figuring out who is related…. The researchers had no clue as to how they were able to do this. Perhaps they did make a ‘template’ based on relatives they were familiar with, or maybe they had figured out what they looked like somehow, so could use that to figure out who were their relatives.”

Download Pew Datasets!

bonus: Researchers create 1,000-robot swarm – PANIC!!1! HEAD FOR THE HILLS!!

bonus bonus: The Domestic Cat Genome Has Been Fully Sequenced, and It’s Fascinating“Cats also have what biologists call “a highly conserved ancestral mammal genome organization,” which means that many stretches of their genome haven’t changed much over evolutionary time. Put simply, domestic cats haven’t changed much since they first evolved.”

bonus bonus bonus: Reconstructions show how some of the earliest animals lived — and died – rangeomorphs. h/t mike anissimov!

bonus bonus bonus bonus: Shortest-known abstract for a serious scientific paper (^_^)

(note: comments do not require an email. happy capybara!)

The genetics of Mexico recapitulates Native American substructure and affects biomedical traits“We studied genomic variation within Mexico from over 1000 individuals representing 20 indigenous and 11 mestizo populations. We found striking genetic stratification among indigenous populations within Mexico at varying degrees of geographic isolation. Some groups were as differentiated as Europeans are from East Asians. Pre-Columbian genetic substructure is recapitulated in the indigenous ancestry of admixed mestizo individuals across the country. Furthermore, two independently phenotyped cohorts of Mexicans and Mexican Americans showed a significant association between subcontinental ancestry and lung function. Thus, accounting for fine-scale ancestry patterns is critical for medical and population genetic studies within Mexico, in Mexican-descent populations, and likely in many other populations worldwide.” – see also: People from Mexico show stunning amount of genetic diversity“When the team analyzed the genomes of 511 indigenous individuals from all over Mexico, they found a striking amount of genetic diversity. The most divergent indigenous groups in Mexico are as different from each other as Europeans are from East Asians, they report online today in Science. This diversity maps onto the geography of Mexico itself. The farther away ethnic groups live from each other, the more different their genomes turn out to be…. But most people in Mexico or of Mexican descent these days are not indigenous but rather mestizo, meaning they have a mixture of indigenous, European, and African ancestry. Do their genomes also vary by what region of Mexico they come from, or has all that local variation been smoothed out by centuries of different groups meeting, mixing, and having babies? To answer that question, the team collaborated with Mexico’s National Institute of Genomic Medicine, which has been collecting genetic data from mestizos for many years. Somewhat surprisingly, they found that mestizos in a given part of Mexico tended to have the same ‘rare’ genetic variants as their indigenous neighbors. The mestizo genomes ‘track so well with the indigenous groups that we could use the genetic diversity in mestizos to make inferences about [their native] ancestors,’ Pasaniuc says.”

Neanderthal-Human Skulls Shed Light on Evolution“Skulls found in a Spanish cave exhibit both Neanderthal and primitive human features, according to a new study published in the journal Science. The discovery provides clues about when the common ancestor of modern humans and Neanderthals lived, what happened after the two groups diverged, and how the two became so different over a relatively short period of time. There is consensus about the ending of the story: Modern humans and Neanderthals interbred, and Neanderthal DNA is still present in people of European and Asian ancestry. But the thousands of years before they connected, however, have been a mystery.” – see also: Palaeontology: How Neanderthals evolved“A study reveals that not all distinguishing features of hominid skulls have evolved at the same pace.”

Oldest human faeces show Neanderthals ate vegetables – eat your veggies!

Searching for Answers in Very Old DNA – interview with svante paabo.

Island-hopping odyssey brought civilisation to Europe“The farmers who brought advanced civilisation to Europe got there by sailing between the many islands strewn across the Aegean Sea between Greece and Turkey, according to a new genetic analysis. The first modern humans in Europe were hunter-gatherers who arrived around 40,000 years ago. But around 9000 years ago the first farmers arrived. They spread rapidly, dominating the continent by 7500 years ago, and pushing the hunter-gatherers into decline. The farmers originated in the Fertile Crescent in the Middle East, where farming arose, but until now no one knew which route they took to get to Europe.” – see also Publication Delays from greg cochran.

The population genomic landscape of human genetic structure, admixture history and local adaptation in Peninsular Malaysia“Peninsular Malaysia has greater genetic diversity corresponding to its role as a contact zone of both early and recent human migrations in Asia. However, each single Orang Asli (indigenous) group was less diverse with a smaller effective population size (Ne) than a European or an East Asian population, indicating a substantial isolation of some duration for these groups. All four MEGs were genetically more similar to Asian populations than to other continental groups, and the divergence time between MEGs and East Asian populations (12,000—6,000 years ago) was also much shorter than that between East Asians and Europeans. Thus, Malaysian Orang Asli groups, despite their significantly different features, may share a common origin with the other Asian groups. Nevertheless, we identified traces of recent gene flow from non-Asians to MEGs. Finally, natural selection signatures were detected in a batch of genes associated with immune response, human height, skin pigmentation, hair and facial morphology and blood pressure in MEGs. Notable examples include SYN3 which is associated with human height in all Orang Asli groups, a height-related gene (PNPT1) and two blood pressure-related genes (CDH13 and PAX5) in Negritos. We conclude that a long isolation period, subsequent gene flow and local adaptations have jointly shaped the genetic architectures of MEGs, and this study provides insight into the peopling and human migration history in Southeast Asia.”

Investigating brain connectivity heritability in a twin study using diffusion imaging data – h/t jayman! who tweeted: “Surprise, surprise: diffusion imaging twin study (N = 328) finds patterns of brain connectivity are heritable.”

The stability of self-control across childhood“Results indicate that variation [76%] in self-control is predominantly genetic.”

Race a factor in mortality in heart attack patients on anti-clotting drug“The first genetic variations linked to race have been identified that begin to explain a higher risk of death among some African American and Caucasian patients taking the anti-clotting drug clopidogrel after a heart attack. In particular, the team found that two DNA variants common in African Americans were associated with an increased risk of both bleeding and death. In Caucasians, a different variant was linked to additional heart attacks and a higher risk of death.” – h/t hbd bibliography!

A common Greenlandic TBC1D4 variant confers muscle insulin resistance and type 2 diabetes

GWAS-based pathway analysis differentiates between fluid and crystallized intelligence – h/t stuart ritchie! who tweeted: “Distinction between fluid and crystallised IQ at the genetic level.”

A hair-color allele of Neanderthal origin?“60-70% of Taiwanese aborigines have a loss-of-function allele at the main hair color gene, MC1R, yet their hair is as black as humans with the original ‘African’ allele. This seems to be a general pattern in Asians. They have fewer MC1R alleles than do Europeans, and the ones they have produce the same hair color.” – from peter frost.

Physical attractiveness as a phenotypic marker of health: an assessment using a nationally representative sample of American adults“[T]he more attractive a respondent was rated, the less likely he or she was to report being diagnosed with a wide range of chronic diseases and neuropsychological disorders. Importantly, this finding was observed for both sexes. These analyses provide further support for physical attractiveness as a phenotypic marker of health.”

Mellow, Paranoid, Happy, or Mean: Why do people respond so differently to the same drugs?“Although the research hasn’t settled on simple explanations, it’s clear that some combination of personality traits, genetics, and experience affects how people respond to intoxicants.”

How universal is empathy?“Pro-social behavior seems to be a human universal, but is the same true for full empathy?” – from peter frost.

Woodley launches his Victorian defence“The Woodley gang argue that, once they have done a complete re-analysis to respond to the points raised against their original ‘Victorians’ paper, their new results ‘reveal a seemingly robust secular trend towards slowing reaction time in these two countries, which translates into a potential dysgenics rate of −1.21 IQ points per decade, or −13.9 points in total between 1889 and 2004. We conclude by arguing that the best way forward is to test novel predictions stemming from our finding relating to molecular genetics, neurophysiology and alternative cognitive indicators, thus shifting the research focus away from the purely methodological level towards the broader nomological level. We thank our critics for helping us to arrive at a much more precise estimate of the decline in general intelligence.'” – @dr. james thompson’s blog.

HVGIQ: Cambodia and HVGIQ: Turks and Caicos Islands and HVGIQ: Vietnam – from jason malloy @human varieties.

U.S. Ethnic/Race Differences in Aptitude by Generation: An Exploratory Meta-analysis – from chuck @human varieties.

Ability, Effort, and Academic Achievement among Asian Americans – from steve hsu.

andrew “the goth” sabisky on the pisa tests/scores and their implications for education.

The Flynn effect and “real intelligence”(tm) and Why a mental age of eleven and an IQ of 70 are distinct – from elijah.

Embryo selection for cognitive enhancement: curiosity or game-changer?

Power to edit who you are – on CRISPR.

Reading to Newborns Is Probably Useless – from razib.

For One Baby, Life Begins with Genome Revealed“How a California father made an end run around medicine to decode his son’s DNA.” – on razib’s boy! (^_^)

Criminal offending as part of an alternative reproductive strategy: Investigating evolutionary hypotheses using Swedish total population data“Convicted criminal offenders had more children than individuals never convicted of a criminal offense. Criminal offenders also had more reproductive partners, were less often married, more likely to get remarried if ever married, and had more often contracted a sexually transmitted disease than non-offenders. Importantly, the increased reproductive success of criminals was explained by a fertility increase from having children with several different partners. We conclude that criminality appears to be adaptive in a contemporary industrialized country, and that this association can be explained by antisocial behavior being part of an adaptive alternative reproductive strategy.” – h/t mary lou cowan! – chicks dig jerks. – see also You dropped your glove, my liege from the awesome epigone.

Men Who Hate Women – from staffan.

Why women see differently from the way men see? A review of sex differences in cognition and sports – h/t keith laws!

For The First Time, Chimpanzees Are Making A Fashion Statement — Sticking Blades Of Grass In Their Ears“It’s a trend that’s taken a troop of chimpanzees by storm: a blade of grass dangling from an ear. The “grass-in-ear behavior,” as scientists have termed it, seems to be one of the first times that chimpanzees have created a tradition with no discernible purpose — a primate fashion statement, in other words…. There’s no genetic or ecological factors, the scientists believe, that would account for this behavior — only culture.” – but, but, but…where does chimp culture come from?

Faces of Old World monkeys evolved to prevent crossbreeding

No effects of androgen receptor gene CAG and GGC repeat polymorphisms on digit ratio (2D:4D): A comprehensive meta-analysis and critical evaluation of research“In contrast to a small-sample (N=50) initial report, widely cited affirmatively in the literature, meta-analysis of the entire retrievable evidence base did not support any associations between CAG variants and right-hand, left-hand, or right-minus-left-hand 2D:4D. Effects of GGC variants on digit ratios likewise were almost exactly null.” – h/t dr. zhana!

Parents of children with autism often have autistic traits – kid has all his ducks in a row! (~_^) – h/t jason moore!

Sensitive? Emotional? Empathetic? It could be in your genes“Do you jump to help the less fortunate or cry during sad movie scenes? If yes, you may be among the 20 percent of our population that is genetically pre-disposed to empathy, according to a study. The results provide further evidence that highly sensitive people are generally highly tuned into their environment, and provide evidence that especially high levels of awareness and emotional responsiveness are fundamental features of humans characterized as HSPs.” – h/t mr. robert ford!

Negotiating the gap: Four academics and the dilemma of human biodiversity – from peter frost.

Guns & Violence, Again – from jayman.

The Little Divergence“A ‘great divergence’ between the economies of Western Europe and East Asia had unambiguously occurred by 1800. However, there’s a growing body of opinion that this was preceded by a ‘little divergence’ which might have started as early as 1200. I argue that the pre-modern ‘little divergence’ was probably real, but that doesn’t mean it happened because of a modern growth process — a sustained rise in the production efficiency of the divergent economies. The ‘little divergence’ might be only a reflexion of those societies’ Malthusian balance of natality and mortality.” – from pseudo. – see also Addendum to The Little Divergence.

Searching for the “Free Will” Neuron“Gabriel Kreiman’s single-neuron measurements of unconscious decision-making may not topple Descartes, but they could someday point to ways we can learn to control ourselves.”

Denying the Tribe – from claire lehmann.

Mike Lotus Meeting with Emmanuel Todd in Paris, Discussing Todd’s Current Work and America 3.0“Todd spoke about the origins of the Absolute Nuclear Family, as contrasted with the Community Family which predominates in much of Eurasia. Todd said that his most recent book, ‘L’Origine des systemes familiaux’ he shows that the entire history of the world is understood backward. Specifically, the supposedly most backward places are the most advanced. He told me that he had made an absurd mistake in his early book The Explanation of Ideology: Family Structure and Social Systems. He said in Explanation that the distribution of family systems appeared to be random. But, he said, he should have realized that this could not be correct. He took out a pile of printer paper and with rapid strokes sketched an oval and filled in the center, noting that this was the community family area. It was a given that I understood that the oval was Eurasia. He then marked Xs around the periphery for England, Iceland, Finland, France, Japan, Korea, the Philippines all areas which were still individualistic in family structure. He said the book articulates the ‘Principle of Peripheral Conservation.’ The oldest known family structure is the Undifferentiated Nuclear Family (UNF). In England the UNF evolved into the ANF over many centuries. The Community Family forms took four to five thousand years to form and to reach their current state of development. In particular the subjugation of women took a very long time to complete in these systems. In other words, the societies which are currently considered the most modern have as a foundation an archaic family structure.” – h/t t.greer!

A Dozen Words for Misunderstood“Slaying, yet again, the idea that the languages we speak shape the thoughts we think.” – h/t steve stewart williams!

Understanding current causes of women’s underrepresentation in science“[D]ifferential gendered outcomes in the real world result from differences in resources attributable to choices, whether free or constrained, and that such choices could be influenced and better informed through education if resources were so directed. Thus, the ongoing focus on sex discrimination in reviewing, interviewing, and hiring represents costly, misplaced effort: Society is engaged in the present in solving problems of the past, rather than in addressing meaningful limitations deterring women’s participation in science, technology, engineering, and mathematics careers today.”

Breaking the Glass Ceiling? The Effect of Board Quotas on Female Labor Market Outcomes in Norway [pdf] – h/t ben southwood! who tweeted: “Norwegian gender quotas on boards had ‘very little discernible impact on women in business beyond its direct effect.'”

Archaeological cave dig unearths artefacts from 45,000 years ago“An archeological dig has revealed artefacts of early occupation so old they rival the dates of those found at sites of the earliest human settlement in Australia. The discovery of the artefacts of animal bone and charcoal at the Ganga Maya Cave (named by traditional owners meaning ‘house on the hill’) in the Pilbara region of Western Australia are the subject of a scientific paper not yet submitted to archaeological journals.”

Artificial cranial modification in Kow Swamp and Cohuna“This project provides added support for the argument that at least some Pleistocene Australian groups were practicing artificial cranial modification.” – h/t neuroskeptic!

Researchers discover 6,200-year-old schistosomiasis parasite egg“Researchers have discovered what they believe is the oldest ever schistosomiasis parasite egg in a 6,200-year-old grave by the Euphrates river in Syria, potentially providing the first evidence that Middle East agricultural irrigation systems – the artificial application of water to land or soil – may have contributed to the schistosomiasis burden.” – d*mn agriculture! – h/t adam benton @evoanth!

Tablet about payment of donkey debt discovered in Kültepe believed to be oldest trade document – h/t frau katze!

bonus: Assessment of Genetic Variability of Fish Personality Traits using Rainbow Trout Isogenic Lines“The study of inter-individual variability of personality in fish is a growing field of interest but the genetic basis of this complex trait is still poorly investigated due to the difficulty in controlling fish genetic origin and life history…. To this end, seven to ten rainbow trout isogenic lines were screened for their spatial exploratory behaviour, their flight response toward a stressor and their risk taking behaviour. Results showed that some lines seemed less sensitive to new events or environmental changes and could be defined as low responsive, while others were very sensitive and defined as high responsive.” – h/t justin tiehen!

bonus bonus: Meet one of your ancestors: a 505-million-year-old fish

bonus bonus bonus: H. pylori Bacteria Frantically Mutate to Establish Infection“A burst of rapid evolution allows Helicobacter pylori, the bacterium that causes ulcers in humans, to evade the immune system during the early, acute phase of infection. This finding complements earlier work that quantified how quickly H. pylori mutations accumulate during chronic infection. During the acute phase, mutational rates are 30 to 50 times greater than during the chronic phase.”

bonus bonus bonus bonus: An 81 million year herpes infection: First endogenous herpes virus found!

bonus bonus bonus bonus bonus: Scientific proof that dogs don’t like bananas

(note: comments do not require an email. social construct duck vs. social construct duck!)

making up for a few lost weekends linkfests…

Tracing Ancestry, Researchers Produce a Genetic Atlas of Human Mixing Events“Researchers have found genetic evidence for hundreds of examples of the large-scale mixing of human populations in the past 4,000 years.” – see also: A Genetic Atlas of Human Admixture History“We used this to produce an atlas of worldwide human admixture history, constructed by using genetic data alone and encompassing over 100 events occurring over the past 4000 years. We identified events whose dates and participants suggest they describe genetic impacts of the Mongol empire, Arab slave trade, Bantu expansion, first millennium CE migrations in Eastern Europe, and European colonialism, as well as unrecorded events, revealing admixture to be an almost universal force shaping human populations.” – see also: A genetic atlas of human admixture history. – see also from dienekes: Human admixture common in human history (Hellenthal et al. 2014).

Earliest footprints outside Africa discovered in Norfolk“Scientists have discovered the earliest evidence of human footprints outside of Africa, on the Norfolk Coast in the East of England. The footprints are more than 800,000 years old and were found on the shores of Happisburgh.”aaaand then they got washed away in the storms. (>_<)

Modern human genomes reveal our inner Neanderthal“Cross-breeding boosted Homo sapiens’ ability to cope with cool climates, but the hybrids may have had trouble breeding.” – see also: Neanderthal-human sex bred light skins and infertility. and see also: Adaptive Neanderthal admixture – from greg cochran.

Science discovers new ignorance about the past – good stuff from matt ridley.

Genetic origins of high-altitude adaptations in Tibetans“Genetic adaptations for life at high elevations found in residents of the Tibetan plateau likely originated around 30,000 years ago in peoples related to contemporary Sherpa. These genes were passed on to more recent migrants from lower elevations via population mixing, and then amplified by natural selection in the modern Tibetan gene pool, according to a new study.” – see also: Admixture facilitates genetic adaptations to high altitude in Tibet – see also: A novel mechanism for getting high – from greg cochran. – see also: Tibetan mastiffs equally adapted to high altitudes of Tibet.

Immediate replacement of fishing with dairying by the earliest farmers of the northeast Atlantic archipelagos [i.e. british isles] – “These new findings…unequivocally confirm rejection of marine resources by early farmers coinciding with the adoption of intensive dairy farming. This pattern of Neolithization contrasts markedly to that occurring contemporaneously in the Baltic, suggesting that geographically distinct ecological and cultural influences dictated the evolution of subsistence practices at this critical phase of European prehistory.”

The booms and busts of Neolithic Europe (and their potential impact on our DNA)“most of the interactions between the genetically Near Eastern-like Neolithic farmers and indigenous European hunter-gatherers, including mixing, in all likelihood took place on the peripheries of the farming societies. If so, then perhaps every time there was a bust, it was the relatively more admixed, or even more hunter-gatherer-like, farmer groups from the peripheries that took advantage of the situation and moved in to grab some land in the depopulated regions? In other words, this might have been the process which led to the well-documented reemergence of hunter-gatherer-derived ancestry in the heart of Europe after the early Neolithic.” – @eurogenes.

First Ancient North American Genome Sequenced“Analysis of 12,600-year-old DNA refutes the idea that Native Americans originated in Western Europe.” – see also: The genome of a Late Pleistocene human from a Clovis burial site in western Montana

The Fading of the Most Basal of Basal“[T]he western and eastern Pygmy populations of the Congo rainforest seem to have diverged tens of thousands of years ago, tens of thousands of years after their divergence from the ancestors of their agriculturalist neighbors.” – from razib.

Slow times in the New World – from greg cochran.

Genetic ancestry is associated with colorectal adenomas and adenocarcinomas in Latino populations“[I]ncreased African ancestry (or variants linked to it) contributes to the increased susceptibility of colorectal cancer in admixed Latin American population.” – h/t razib!

Black Death Left a Mark on Human Genome“Genetically, the Rroma are still quite similar to the northwestern Indians, even though they have lived side by side with the Romanians for a millennium, the team found. But there were 20 genes in the Rroma and the Romanians that had changes that were not seen in the Indians’ versions of those genes, Netea and his colleagues report online today in the Proceedings of the National Academy of Sciences. These genes ‘were positively selected for in the Romanians and in the gypsies but not in the Indians,’ Netea explains. ‘It’s a very strong signal.'”

HBD is Life and Death – from jayman.

Chemists Seek Possible Precursor to RNA – h/t billare! who tweeted: “Were there self-assembling replicants—proto-RNAs—before RNA world? Researchers find some candidates.”

The Unique Merger That Made You (and Ewe, and Yew)“All sophisticated life on the planet Earth may owe its existence to one freakish event.” – mitochondria, eukaryotes, yada, yada, yada.

Study demonstrates evolutionary ‘fitness’ not the most important determinant of success“By modelling populations over long timescales, the study showed that the ‘fitness’ of their traits was not the most important determinant of success. Instead, the most genetically available mutations dominated the changes in traits. The researchers found that the ‘fittest’ simply did not have time to be found, or to fix in the population over evolutionary timescales. The findings suggest that life on Earth today may not have come about by ‘survival of the fittest’, but rather by the ‘arrival of the frequent’.”

Burakumin, Paekchong, and Cagots“Human evolution is a logarithmic curve where most of the interesting changes have happened since the advent of farming and complex societies. *Homo sapiens* was not a culmination but rather a beginning…of gene-culture co-evolution. There are many ways to study this co-evolution, but one way is to look at the different evolutionary trajectories followed by castes and their host populations.” – from peter frost.

Of Genetic Determinists and Unicorns – from helian.

Geographic variation of human gut microbes tied to obesity“[P]eople living in northern latitudes have a greater proportion of the Firmicutes associated with obesity than do people living farther south, and a smaller proportion of Bacteroidetes. The implications are unclear, though microbes may evolve with people to better extract energy from food in colder climates.” – h/t claire lehmann! – also: I had the bacteria in my gut analysed. And this may be the future of medicine.

A Dog Can’t Teach a Dog New Tricks (But It Can Teach a Wolf) – *cough*domestication*cough* – h/t neuroskeptic!

Revolutionary new view on heritability in plants: Complex heritable traits not only determined by changes in DNA sequence“Complex heritable traits are not only determined by changes in the DNA sequence. Scientists have now shown that epigenetic marks can affect traits such as flowering time and architecture in plants. Furthermore, these marks are passed on for many generations in a stable manner.” – in PLANTS! (are you a plant?)

Single nucleotide polymorphism in the neuroplastin locus associates with cortical thickness and intellectual ability in adolescents – h/t stuart ritchie! – also: Scientists identify gene linking brain structure to intelligence.

The many-headed Hydra of alternate intelligences – from dr. james thompson.

Quick Post: L&V’s National IQs predict GMAT scores across 173 nations“We have shown that measures of national cognitive ability predict both GMAT scores and English proficiency scores independent of rates of English usage. GMAT and English proficiency scores seem to be indexes of National (g) by way of National IQ and National ACH.” – @human varieties.

Meritocracy doesn’t work. It’s in the Left’s interest to recognise this.“The Son Also Rises, a study of social mobility by Gregory Clark, will surprise and also alarm some people. He notes, by using surname patterns, that mobility is minimal in all societies where the data is available. Even, for example, in the Nordic paradise of Sweden. He says: ‘In all societies, what seems to matter is just who your parents are. At the extreme, we see in modern Sweden an extensive system of public education and social support. Yet underlying mobility rates are no higher in modern Sweden than in pre-industrial Sweden or medieval England.’ He also notes that even in revolutionary societies, such as in Communist China, people with aristocratic surnames also turn up at the top, showing that once again Darwin trumps Marx.” – from ed west. – see also: Everyone likes the idea of equal opportunity. This economist thinks it’s a fantasy.

The Ideological-Conflict Hypothesis: Intolerance Among Both Liberals and Conservatives“[L]iberals and conservatives express similar levels of intolerance toward ideologically dissimilar and threatening groups.”

Sadism: A New Addition to the Dark Triad? – from staffan.

You Are Not A Special Snowflake – from sisyphean the mad contrarian.

Males and females differ in specific brain structures“Reviewing over 20 years of neuroscience research into sex differences in brain structure, researchers have conducted the first meta-analysis of the evidence. The team performed a quantitative review of the brain imaging literature testing overall sex differences in total and regional brain volumes. They found that males on average have larger total brain volumes than women (by 8 to 13 percent). Looking more closely, the researchers found differences in volume between the sexes were located in several regions. These included parts of the limbic system, and the language system.”

Major sex differences in brain gene expression – from mr. mangan, esq. – also: How Can This Be? – from malcolm pollack.

How much do sex differences matter in sports?“Thanks in large part to testosterone, men are generally heavier and taller than women. They have longer limbs relative to their height, bigger hearts and lungs, less fat, denser bones, more oxygen-carrying red blood cells, heavier skeletons that support more muscle — 80 percent more in the upper body, on average, which is about the difference between male and female gorillas — and narrower hips that make for more efficient running and decrease the chance of injury. But since these differences generally don’t appear until puberty, boys’ and girls’ records in track tend to be identical before age 10. There’s scant biological reason to separate young boys and girls in competitions.” – from david epstein.

How the gender divide reaches into our nightmares“A study has found women are more likely to dream of interpersonal disputes, while men tend to face war, calamities and insect swarms alone.”

Be My Valentines: Is Monogamy Natural to Us?“It turns out that we aren’t monogamous or polygamous by nature. As everyone from poets to divorce attorneys can attest, we are by nature a profoundly confused species—somewhere in between.” – h/t robert ford!

Male infanticide leads to social monogamy in primates“The origin of social monogamy in primates is best explained by long lactation periods caused by altriciality, making primate infants particularly vulnerable to infanticidal males. We show that biparental care shortens relative lactation length, thereby reducing infanticide risk and increasing reproductive rates. These phylogenetic analyses support a key role for infanticide in the social evolution of primates, and potentially, humans.” – h/t heartiste!

23andMe Couples Correlated“For Valentine’s Day, we analyzed data from 15,298 real-world couples who had children together and found that people paired with others who were more like themselves than they were different.”

How Women Gang Up On Each Other To Get What They Want – from claire lehmann.

Morality and evolution – from mr. mangan, esq.

Cultural Marxism, gay-style – hints of left-wing authoritarism? i think so. from the awesome epigone.

Panthropology reveals 4,300 year old chimp site

Ethnic diversity’s ‘inconvenient truths’“[W]hen the Vancouver Foundation recently conducted a massive survey of Metro Vancouver residents, researchers discovered most people in this West Coast city feel unusually high levels of loneliness and lack of friends…. The Vancouver Foundation survey of 3,800 diverse Metro residents confirmed Putnam’s results. It found one in four Metro residents feels alone more often than they would like, one-third consider Vancouver a difficult place to make friends, most don’t socialize with their neighbours, half don’t volunteer and most feel that, while diversity is generally a good thing, they prefer to be with members of their own ethnic group.” – h/t mike anissimov!

Rainforests in Far East shaped by humans for the last 11,000 years“New research shows that the tropical forests of South East Asia have been shaped by humans for the last 11,000 years. The rain forests of Borneo, Sumatra, Java, Thailand and Vietnam were previously thought to have been largely unaffected by humans, but the latest research suggests otherwise.”

The Case of Moulay Ismael – Fact or Fancy?“The results indicate that Moulay Ismael could have achieved this high [888 children!] reproductive success.” – btw, that’s moulay ismael the bloodthirsty to you!

How HBD Will Make you a Better Person“[F]orbidden knowledge does not result in genocide. The problem with this view is that genocide has been the norm throughout human history — that is, until very recently. On a historical timeline, our recent scientific knowledge of racial differences actually negatively correlates with the historic trend of genocide.” – @occam’s razor.

Robots and HBD denialism“The coming robot revolution will make the labor of people below a certain IQ totally worthless. This is an event never before experienced by humanity.” – from the lion of the blogosphere.

The outgrowth of Muller’s eugenics program“[T]he eugenics program described by Muller, as such, has become a reality.” – h/t jayman and billare!

Being lazy could be genetic say scientists – study done on (lazy, good for nuthin’!) mice.

Male sexual orientation influenced by genes, study showsGenes examined in study are not sufficient or necessary to make men gay but do play some role in sexuality, say US researchers.”

Church Making Strides Preserving African Family Histories“Genealogy experts are experiencing a race against time in Sub-Saharan Africa; an area that spans 36 countries. There is an urgency to collect oral interviews of African genealogy because family historians are aging and some are dying before those histories can be recorded.” – h/t t.greer!

Plagiarism attitudes common across cultures – in children – h/t naturalismo!

Richard III DNA mapping: historic first lets experts look into eyes of Plantagenet king“Scientists will be able to check whether portraits of a dark-haired brooding monarch are accurate.”

Norse Rune code cracked“A scholar of the University of Oslo has cracked one of the rune codes used by the Vikings, revealing they were sending each other messages such as ‘Kiss me’.” -?!-

Midiclorianos: determinismo biológico en Star wars – REALLY important stuff from eduardo zugasti. (^_^)

After 400 years, mathematicians find a new class of solid shapes“Nearly 400 years after the last class was described, researchers claim that they may have now invented a new, fourth class, which they call Goldberg polyhedra.” – h/t jason moore!

bonus: Nigeria: Restaurant Served Roasted Human Heads – yup.

bonus bonus: Huge chimpanzee population thriving in remote Congo forest“Scientists believe the group is one of the last chimp ‘mega-cultures’, sharing a unique set of customs and behaviour.”

bonus bonus bonus: Camels Had No Business in Genesis“Radiocarbon dating was used to pinpoint the earliest known domesticated camels in Israel to the 10th century B.C.— decades after the kingdom of David, according to the Bible.”

bonus bonus bonus bonus: Cat parasite found in Arctic Beluga“The cat parasite *Toxoplasma gondii*, which can cause blindness in people, has been identified in Beluga in the western Arctic.” – h/t carl zimmer!

bonus bonus bonus bonus bonus: The Rise of the Crazy Ants“Ants equipped with venom antidote invade southeastern U.S.” – h/t hbd bibliography!

bonus bonus bonus bonus bonus bonus: This Tiny Animal Can Live an Estimated 1,400 Years

bonus bonus bonus bonus bonus bonus bonus: Conservative Acquaintance Annoyingly Not Racist – h/t niall gooch!

(note: comments do not require an email. bili apes!)

Brown-skinned, blue-eyed, Y-haplogroup C-bearing European hunter-gatherer from Spain (Olalde et al. 2014) – @dienekes’. – also: European Hunter-Gatherers, Blue Eyes and Dark Skin? – from razib. – also: Hunter-gatherer European had blue eyes and dark skin“Genetic tests reveal that a hunter-gatherer who lived 7,000 years ago had the unusual combination of dark skin and hair and blue eyes.” – h/t ed west! – also: Tar-Zan* and Korak and Shades of Pale from greg cochran.

Y-chromosome “Adam” was not necessarily human“From the point of view of population genetics, there is absolutely no reason that the common ancestor of all human Y chromosomes must have existed in an individual that we would identify as ‘human’.”

Genomic variation in sharing between siblings“Visscher et al make really nice use of this slight variability in how much of the genome sibs share to learn about how much variation in height within a population is due to genetic variation. They use the fact that sibs who share slightly more of their genome (>0.5) should have more similar heights, than sibs who share less of their genomes (<0.5). This allows them to partition out how much of the resemblance between siblings is due to a shared environment, as opposed to shared genomes…. It also makes me wonder if sibs are actually unconsciously, weakly aware of these subtle genomic differences (through their similarity in a range of traits, including height etc). I could imagine doing a study where siblings (or others) are asked to assess how similar they are/feel, and then assessing whether this is weakly correlated with the fraction of the genome shared. I keep meaning to followup on this idea with some popgen theory to assess how this might play out in modifying kin-selection and altruism between sibs and other relatives." – from graham coop [this guy].

New genes spring, spread from non-coding DNA“A new study shows that new genes can spring from non-coding DNA more rapidly than expected.” – h/t hbd bibliography!

HBD Chick Lays it Down on HBD“I say can’t we just stick to seeking out the truth, whatever that is….” – hear, hear! – from jayman.

Diet rapidly and reproducibly alters the human gut microbiome“[T]he gut microbiome can rapidly respond to altered diet, potentially facilitating the diversity of human dietary lifestyles.”

300,000-year-old hearth found: Microscopic evidence shows repeated fire use in one spot over time“Scientists discovered in the Qesem Cave, an archaeological site near present-day Rosh Ha’ayin, the earliest evidence — dating to around 300,000 years ago — of unequivocal repeated fire building over a continuous period. These findings help answer the question and hint that those prehistoric humans already had a highly advanced social structure and intellectual capacity.” – h/t razib!

The new European phenotype: expansion into the Middle East – from peter frost.

Chimpocentrism and reconstructions of human evolution (a timely reminder) – h/t neuroskeptic! who said: “Beware ‘chimpocentrism’ in studies of human evolution.” – see also: Chimps have undergone more positive selection than humans – from adam benton.

Genius in the genes – from dr. james thompson.

On Dolphins, Big Brains, Shared Genes and Logical Leaps“‘It looks like ASPM evolved adaptively in all mammals…. It could be that ASPM is a general target of selection in episodes of brain evolution and isn’t specific to large brains.'”

Rates of atheism/agnosticism by ethnicity – from the awesome epigone.

Why Are Women More Liberal Than Men? – @the chateau.

Comparing Warfare Deaths per Capita in 18th vs. 20th Centuries“[T]he 20th century was only a bit more violent than the 18th century.” – from mike anissimov.

Why is polygamy declining? – from matt ridley, who tweeted: “The decline of human polygamy coincides with democracy.”

The Dark Enlightenment Hits Stage Two

La ciencia estúpida“La mayoría de los grandes científicos y filósofos no eran lo que diríamos tipos agradables. Tampoco eran políticamente correctos según el canon normal. Prácticamente ningún filósofo o científico anterior a la escuela de Frankfurt podría dar hoy una clase pública sin la amenaza de ser molestado por una turba emancipatoria. Hume, Darwin, Voltaire, Locke, Kant (no digamos ya Platón o Aristóteles) hoy no podrían ser contratados en la universidad de un país occidental.” – from eduardo zugasti.

Genome of longest-living cancer: 11,000-year-old living dog cancer reveals its origin, evolution“A cancer normally lives and dies with a person, however this is not the case with a sexually transmitted cancer in dogs. In a new study, researchers have described the genome and evolution of this cancer that has continued living within the dog population for the past 11,000 years.”

Why the masculine face? Genetic evidence reveals drawbacks of hyper-masculine features“[A]round half the variation in both male and female facial masculinity could be attributed to additive genetic variation…. The extensive genetic variation in masculinity makes more plausible the idea that choosing to mate with a masculine man can result in more attractive offspring. But the genes that made a male face more masculine did not make it more attractive. Worse, these same genes made female faces more masculine and thus less attractive. Families that make manly-looking sons tend also to make masculine-looking daughters.”

Casting Out The Devil“[C]onservatives generally think that liberals are misguided, and live in deep denial of obvious truths about human nature and the way the world actually works (as opposed to the way they think it *ought* to work), liberals view conservatives not just as misguided, but as *morally evil*.” – from malcolm pollack.

Joshua Greene’s “Moral Tribes”: The Minting of a New Morality – from helian.

Bones from human sacrifice at Tenochtitlan ceremonial complex“Fragments of human bones that exhibit cut marks and prolonged exposure to fire have been discovered through various excavations in the Sacred Precinct of Tenochtitlan (located in Mexico City). These skeletal remains are from individuals, such as children, slaves and captured warriors, who were sacrificed during religious festivals. – cannibalism! – h/t charles mann!

It’s not just ancient Roman propaganda: Carthaginians really did sacrifice children“‘We like to think that we’re quite close to the ancient world, that they were really just like us – the truth is, I’m afraid, that they really weren’t.'”

Data Mining Proves Darwin’s Finches Weren’t Really His – h/t jason moore!

Marry Your Like: Assortative Mating and Income Inequality“Does assortative mating contribute to household income inequality? Data from the United States Census Bureau suggests there has been a rise in assortative mating. Additionally, assortative mating affects household income inequality.” – h/t chuck ross!

Social status influences Democrats’ — but not Republicans’ — support for reducing inequality“Low wealth Democrats supported legislation to reduce economic inequality significantly more than both high wealth Democrats and Republicans. ‘Whereas Republicans tended to sponsor legislation that supports economic inequality regardless of their wealth, wealth predicted sponsoring behavior for Democrats,” the researchers explained.’ Specifically, high wealth Democrats tended to sponsor fewer pieces of legislation that reduce economic inequality than did their lower wealth counterparts.”

Dark lands: the grim truth behind the ‘Scandinavian miracle’“Take the Danes, for instance. True, they claim to be the happiest people in the world, but why no mention of the fact they are second only to Iceland when it comes to consuming anti-depressants?” – h/t claire lehmann!

Islam’s Baby Problem – @28 sherman.

Life as a Nonviolent Psychopath“Neuroscientist James Fallon discovered through his work that he has the brain of a psychopath, and subsequently learned a lot about the role of genes in personality and how his brain affects his life.” – this guy again. h/t ray sawhill!

A Sexual-Decision Flowchart That Makes Everything Simpler for Medieval Men – h/t jayman! (who’s prolly very glad he doesn’t live in the middle ages. (~_^) )

bonus: US Army considers replacing thousands of troops with robots“The US Army is studying whether robots could take the place of thousands of soldiers”

bonus bonus: Scotland had a glacier up to 1700s, say scientists

(note: comments do not require an email. glen coeglacial valley.)

sorry for the delay! the sunday linkfest hasn’t appeared on a wednesday since … gee … the last time it appeared on a wednesday! (*^_^*)

Butterflies show origin of species as an evolutionary process, not a single event“The evolution of new species might not be as hard as it seems, even when diverging populations remain in contact and continue to produce offspring…. ‘We find that only a small fraction of the genome is markedly different between closely related species, but then much more of the genome — more than you’d expect — shows similar differences between more distantly related species…. That indicates that the genetic changes that are important for causing speciation are tightly clustered early in speciation, but not so later on in the process; the overall pattern of genome divergence starts slow and then skyrockets.'”

Mating advantage for rare males in wild guppy populations“Negative frequency-dependent selection (NFDS), a form of selection in which genotypes are favoured when they are rare, can potentially maintain such extensive polymorphism, but few experimental studies have confirmed its operation in nature…. Here we use highly replicated experimental manipulations of natural populations to show that males with rare colour patterns have higher reproductive fitness, demonstrating NFDS mediated by sexual selection. Rare males acquired more mates and sired more offspring compared to common males and, as previously reported, had higher rates of survival.” – h/t rob brooks!

Japanese north–south gradient in IQ predicts differences in stature, skin color, income, and homicide rate“In Japan, there is IQ gradient from north to south. Stature and average income cline is also from north to south. Homicide rates increase from north to south. Fertility rates and suicide rates decrease from north to south. Infant mortality is not correlated with latitude.”

Global patterns of sex-biased migrations in humans“We found that genetic differentiation between populations was higher for Y chromosome than for the mtDNA at global scales. The migration rate of female might be three times higher than that of male, assuming the effective population size is the same for male and female.” – h/t hbd bibliography!

Intra-African variation in Neandertal admixture is due to non-African admixture – @dienekes’ – h/t charles!

Shape Differences Between the Faces of Homosexual and Heterosexual Men“Homosexual men showed relatively wider and shorter faces, smaller and shorter noses, and rather massive and more rounded jaws, resulting in a mosaic of both feminine and masculine features.” – h/t neuroskeptic!

The rule-dependence model explains the commonalities between the Flynn effect and IQ gains via retesting“[W]e propose that Flynn effect gains are partly a function of the degree to which a test is dependent on rules or heuristics. This means that testees can become better at solving ‘rule-dependent’ problems over time in response to changing environments, which lead to the improvement of lower-order cognitive processes (such as implicit learning and aspects of working memory). These in turn lead to apparent IQ gains that are partially independent of general intelligence. We argue that the Flynn effect is directly analogous to IQ gains via retesting, noting that Raven’s Progressive Matrices is particularly sensitive to both the effects of retesting and the Flynn effect.” – from woodley and armstrong! (^_^) – see also dr. thompson.

Civilizations rise and fall on the quality of their soil“Great civilisations have fallen because they failed to prevent the degradation of the soils on which they were founded…. This is according to Professor Mary Scholes and Dr Bob Scholes who have published a paper in the journal Science, which describes how the productivity of many lands has been dramatically reduced as a result of soil erosion, accumulation of salinity, and nutrient depletion.”

Bad reporting generates bad arguments“The Sunday Times gets 3.5 million readers a week. Anything mentioned in it has a chance of influencing public understanding and opinion in Britain. Last week they did a piece on Professor Robert Plomin’s recent book ‘G is for Genes’ which focuses on the genetic contribution to scholastic achievement. The newspaper’s coverage was misleading….” – of course. – from dr. james thompson.

Embryo Selection for Cognitive Enhancement“We find that embryo selection, on its own, may have significant impacts, but likely not drastic ones, over the next 50 years, though large effects could accumulate over multiple generations. However, there is a complementary technology, stem cell-derived gametes, which has been making rapid progress and which could amplify the impact of embryo selection, enabling very large changes if successfully applied to humans.” – h/t mike anissimov!

They might be giants – from greg cochran.

Why Can’t We All Just Get Along? The Uncertain Biological Basis of Morality“[S]ome of our deepest moral intuitions are gut feelings that are with us for no more lofty a reason than that they helped our ancestors protect themselves and spread their genes.” – h/t urho lintinen! – see also: You Can’t Learn About Morality from Brain Scans.

War Before Civilization – from peter turchin.

Cooperation and conflict between women in the family“Reproductive competition within and between families may have underpinned the biological evolution of fertility patterns (such as menopause) and the cultural evolution of marriage, residence, and inheritance norms (such as late male marriage or primogeniture), which can enhance cooperation and minimize the observed incidence of such conflicts.”

Do human females use indirect aggression as intrasexual competition strategy? [pdf] – yes. (duh.) – h/t michael w. story!

Bone flute discovery indicates 9000 years of Chinese music tradition“Archaeologists announced the discovery of three ancient flutes made of red-crowned crane bones that may prove that Chinese have been playing music for 9,000 years. The flutes were excavated at an ancient tomb in the site of a Neolithic settlement in Henan Province…. The bone flutes, pictured above, are thought to be the world’s earliest heptatonic musical instruments ever discovered.”

Total Fertility Rate“Oversimplifying, if your tribe has 60 men and 40 women, if each woman has two kids during her lifetime, when the next generation turns over, your population will have declined from 100 people to 80. Conversely, if your tribe has 40 men and 60 women, and each woman has two kids, your tribe will have grown from 100 to 120. The female sex is the limiting factor when it comes to reproduction, after all.” – from the awesome epigone.

Earlier Onset of Puberty in Girls Linked to Obesity“[T]he respective ages at the onset of breast development varied by race, body mass index (obesity), and geographic location. Breast development began in white, non-Hispanic girls, at a median age of 9.7 years, earlier than previously reported. Black girls continue to experience breast development earlier than white girls, at a median age of 8.8 years. The median age for Hispanic girls in the study was 9.3 years, and 9.7 years for Asian girls. Body mass index was a stronger predictor of earlier puberty than race or ethnicity.” – h/t hbd bibliography!

What color are Whites?“In reality, most *Français de souche* act as individuals and have only a weak sense of their collective interest. Collective action is instead wielded by better organized factions, particularly the globalized business community—which lobbies hard to outsource employment to low-wage countries and insource low-wage workers.” – from peter frost.

Openness to Experience – That Liberal Je Ne Sais Quoi – from staffan.

Redefining Confluence“We examine an ethnicity that is itself a confluence of various racial and ethnic backgrounds – the Hispanic/Latino (hereafter Latino) ethnicity.”

Long-term memory helps chimpanzees in their search for food

Schadenfreude: Feeling pleasure over the misfortune of those you envy is biological“[P]eople are actually biologically responsive to taking pleasure in the pain of others….”

Researchers find striking similarities between bird song and human music – cheep, cheep!

Ice Roads Used to Build Forbidden City

Stone tools found in northern China ‘could shake-up theory of man’s African origins’“Anthropologists are thrilled – but puzzled – that sediment deposits in northern China where a large number of ancient stone tools have been unearthed appear to have been formed much earlier than the emergence of man’s earliest ancestors.” – chinese busy trying to disprove out-of-africa theory.

bonus: How Mass Immigration Destroys the Economy Over Time“Because it reduces the velocity of money and thus creates a hidden deflation.” – from grey @banksta stuff.

bonus bonus: There’s a global morality gap — and it’s getting wider“It is now clear, though not much talked about, that humanity, all 7.1 billion of us, tends to fall into one of two distinct camps. On the one side are those who buy into the whole post-Enlightenment human rights revolution. For them the moral trajectory of the last 300 years is clear: once we were brutal savages; in a few decades, the whole planet will basically be Denmark, ruled by the shades of Mandela and Shami Chakrabarti. And there’s some truth in this trajectory — except for the fact that it only applies to half the planet. The other half resolutely follows a different moral code: might is right, all men were not created equal and there is a right and a wrong form of sexual orientation. You can identify those countries in the dark half of the divide by their attitudes to homosexuality and women; to honour killings, race, disability, mental illness, religious minorities and to crime, torture and punishment, even animal rights and the environment.” – h/t ed west!

bonus bonus bonus: Racist Red Lobster receipt may be hoax, analysts say – from chuck ross. (my verdict: that girl is such a liar!)

bonus bonus bonus bonus: EU Proposal to Monitor “Intolerant” Citizens“‘There is no need to be tolerant to the intolerant’ — European Framework National Statute for the Promotion of Tolerance, Article 4″oh! – h/t mr. mangan, esq.!

bonus bonus bonus bonus bonus: The Myth of Americans’ Poor Life Expectancy – h/t john hawks!

bonus bonus bonus bonus bonus bonus: About superdiversity – thus my little joke about “human superbiodiversity.” (~_^)

bonus bonus bonus bonus bonus bonus bonus: Long Before Trees Overtook the Land, Earth Was Covered by Giant Mushrooms – GIANT MUSHROOMS!

bonus bonus bonus bonus bonus bonus bonus bonus: Founding of the Darien Colony“The Darien Colony [in panama!] was founded by Scottish emigrants on November 3rd, 1698. But it all went horribly wrong.”

bonus bonus bonus bonus bonus bonus bonus bonus bonus: Lord of the sofa! The ‘cosplay’ enthusiasts who love to survey their two-bedroom kingdom dressed as knights and goblins – for those of you wondering what cosplay is. (^_^) (don’t say you never learned anything new on hbd chick!)

bonus bonus bonus bonus bonus bonus bonus bonus bonus bonus: Horrific FLESH-EATING PLATYPUS once terrorised Australia – no, really!

(note: comments do not require an email. scary platypus!)

Ancient DNA Unravels Europe’s Genetic Diversity“Ancient DNA recovered from a time series of skeletons in Germany spanning 4,000 years of prehistory has been used to reconstruct the first detailed genetic history of modern-day Europeans. The study, published today in ‘Science’, reveals dramatic population changes with waves of prehistoric migration, not only from the accepted path via the Near East, but also from Western and Eastern Europe.” – orig. research article: Ancient DNA Reveals Key Stages in the Formation of Central European Mitochondrial Genetic Diversity. from dienekes: “Anyone adhering to a ‘pots not people’ paradigm will find difficult to explain the sharp discontinuities found in the genetic record.” – and here’s national geographic’s take on the story – my head’s dizzy from all the spin!: “So, just like parts of Europe today are melting pots from different living cultures across the world, Europe is also a melting pot of genetic lineages from different prehistoric cultures that lived there at different periods of time.” – see also: Stone Age farmers, hunters kept their distance.

Genes Suggest European Women at Root of Ashkenazi Family Tree“The women who founded the Ashkenazi Jewish community of Europe were not from the Near East, as previously supposed, and reinforces the idea that many Jewish communities outside Israel were founded by single men who married and converted local women.” – see dienekes and greg cochran.

[Genetic] Link to Oetzi the Iceman found in living Austrians – AWESOME!

Child Behaviour: Not In Their Genes?“Using a powerful approach called GCTA, King’s College London researchers Maciej Trzaskowski and colleagues found no evidence that genetics can explain differences in children’s behavioural and conduct difficulties.” – @neuroskeptic.

“Were the First Artists Mostly Women?“Three-quarters of handprints in ancient cave art were left by women, study finds.” — afaics, there’s no reason to conclude that the individuals who spray painted outlines of their hands (any idiot can do that — I could do that!) were the same individuals who painted the horses and lions, etc. duh. anyway, here’s the interesting bit from the article: “[T]he hands in the caves were much more sexually dimorphic than modern hands, meaning that there was little overlap in the various hand measurements. ‘They fall at the extreme ends, and even beyond the extreme ends,’ Snow said. ‘Twenty thousand years ago, men were men and women were women.'”

Glass always half-empty? Your genes may be to blame“UBC researcher finds some people are genetically predisposed to seeing things in a negative light. Further research is also planned to explore the gene variant’s occurrence across different ethnic groups. While it is believed more than half of Caucasians have ADRA2b, some studies suggest it is much less prominent in other ethnicities….”

Whites More Prone to Certain Heart Condition Than Other Ethnic Groups“In a study to be published online October 8 and in the November 12 issue of ‘Circulation’, researchers discovered that self-described non-Hispanic whites are more likely to develop atrial fibrillation than people from other race or ethnic groups. ‘We found that consistently, every other race had a statistically significant lower risk of atrial fibrillation compared to whites…. So this suggests that white race is itself a risk factor for atrial fibrillation.'” – h/t mr. mangan, esq!

Evolution and Bad Boyfriends

Neurons Fire Backward in Sleep“Unusual brain cell activity may underlie memory streng…” wait. NEURONS FIRE BACKWARD IN SLEEP! cool.

Changes in women’s attractiveness perception of masculine men’s dances across the ovulatory cycle: Preliminary data“Women’s preferences for putative cues of genetic quality in men’s voices, faces, bodies, and behavioral displays are stronger during the fertile phase of the ovulatory cycle. Here we show that ovulatory cycle-related changes in women’s attractiveness perceptions of male features are also found with dance movements, especially those perceived as highly masculine.”

Similar chimpanzees form friendships“‘We found that, especially among unrelated friends, the most sociable and bold individuals preferred the company of other highly sociable and bold individuals, whereas shy and less sociable ones spent time with other similarly aloof and shy chimpanzees,’ says the researcher. The researchers argue that such a strong preference for self-like individuals is probably adaptive, because frequent cooperation becomes more reliable when both partners have similar behavioural tendencies and emotional states. This finding strongly resembles the known ‘similarity effect’ in humans: We tend to make friends with people who are equally extraverted, friendly and bold as ourselves.” — same in some birds, too, remember?

All you ever wanted to know about intelligence (but were too bright to ask) Part 1, Part 2, Part 3, and Part 4 – from dr. james thompson.

Social Status and Anger Expression: The Cultural Moderation Hypothesis“Individuals with lower social status have been reported to express more anger, but this evidence comes mostly from Western cultures…. Americans with lower social status expressed more anger…. Japanese with higher social status expressed more anger….” – maybe there’s a biological explanation? – h/t neuroskeptic!

Life Purpose Buffers Negative Moods Triggered by Diversity“Being in the minority in an ethnically diverse crowd is distressing, regardless of your ethnicity….” – h/t mr. mangan, esq!

Neandertals ate stomach goop, and you can too – mmmmm! chyme!

Study: Narcissists Only Think They’re Especially Creative“Narcissistic people do undertake more creative things, but their correlation with self-reported creativity is disproportionately strong.” – h/t jayman! – speaking of narcissts: The Double-Edged Sword of Grandiose Narcissism: Implications for Successful and Unsuccessful Leadership Among U.S. Presidents.

The Whites of Their Eyes“The subjects in [milgram's] experiments notoriously (and shockingly!) were willing to inflict great pain and possibly permanent harm or even death on victims. But they became less willing to do so as the victim was moved progressively closer to them.”

Meritocracy and Its Discontents – @thosewhocansee.

The Paekchong of Korea – from peter frost.

Tribal feuds, local conflicts engulf Libya“Ever since its revolution, Libya has been riddled with tribal conflict. The state remains powerless in the face of weapon proliferation and violence. Societal fragmentation seems inevitable.” — huh. strange.

The Anglosphere miracle – by daniel hannan – “As for the idea that the individual should be as free as possible from state coercion, this is regarded as the ultimate Anglophone fetish. Whenever the E.U. extends its jurisdiction into a new field—decreeing what vitamins we can buy, how much capital banks must hold, what hours we may work, how herbal remedies are to be regulated—I ask what specific problem the new rules are needed to solve. The response is always the same: ‘But the old system was unregulated!’ The idea that absence of regulation might be a natural state of affairs is seen as preposterous.”

A Second Great Depression? – from jayman.

Cheaters always prosper, to a point

Ancient Sundial Discovered In Bronze Age Ukrainian Grave Is Oldest Of Its Kind

Why a medieval peasant got more vacation time than you – d*mn them! h/t mike anissimov!

I tooke a bodkine“‘I tooke a bodkine,’ he wrote in his notebook, ‘& put it betwixt my eye & bone as neare to [the] backside of my eye as I could: pressing my eye [with the] end of it…there appeared severall white & darke & coloured circles…which circles were plainest when I continued to rub my eye [with the] point of [the] bodkine.’ After many months with his bodkins, notebooks and prisms he came to the conclusion that our eyes can deceive us even about something as obvious as daylight, which appears plain and simple to us, but is in fact composed of lights of many different colours. Appearances can conceal as much as they reveal.” – great #longread about isaac newton.

Length of pregnancy can vary by up to five weeks, scientists discover

Preventing penile fractures and Peyronie’s disease – DON’T try this at home!: “In some Middle East regions, men engage in a practice known as *taqaandan* (‘to click’ in Kurdish), explains Dr. Javaad Zargooshi, urology professor at Kermanshah University of Medical Sciences in Iran. It’s a painless process, similar to knuckle-cracking, in which the top half of an erect penis is bent forcefully while the rest of the shaft is held stationary. Usually this produces only a loss of erection and a satisfying popping noise, says Zargooshi, who published a report on the phenomenon in December in the Journal of Sexual Medicine. Other times, it will fracture the penis.” – wait. what? – via ed west!

Aldeburgh dig unearths teenager’s ‘keepsakes’ box“An Anglo-Saxon teenage girl’s box of trinkets is thought to have been uncovered by archaeologists during a three-week dig in Suffolk.”

bonus: How the Western Banksta System Kills Millions (by accident)

bonus bonus: True scale of European immigration“An EU study has found 600,000 unemployed migrants are living in Britain.”

bonus bonus bonus: Does Some Deeper Level of Physics Underlie Quantum Mechanics? An Interview with Nobelist Gerard ’t Hooft and You probably have no free will. But don’t worry about it.

bonus bonus bonus bonus: Swifts stay airborne for six months at a time – whoa!

bonus bonus bonus bonus bonus: Southern Flying Squirrels Land in Canada“Southern flying squirrels are moving into the habitat of Northern flying squirrels. Now people are debating what to call the hybrid offspring.” — illegal infiltrators! (~_^)

(note: comments do not require an email. really sweet bronze anglo-saxon dolphin trinket!)

New data reveal extent of genetic overlap between major mental disordersgwas study**: “[T]he overlap was highest between schizophrenia and bipolar disorder; moderate for bipolar disorder and depression and for ADHD and depression; and low between schizophrenia and autism. Overall, common genetic variation accounted for 17-28 percent of risk for the illnesses.” (**that’s redundant, isn’t it? sorry.)

Common genes may underlie alcohol dependence, eating disorders“In a study of nearly 6,000 adult twins, researchers found that common genetic factors seemed to underlie both alcoholism and certain eating disorder symptoms—namely, binge eating and purging habits, such as self-induced vomiting or laxative abuse. Genes appeared to explain 38 percent to 53 percent of the risk of developing those disorders.”

Multiple Genes Manage How People Taste Sweeteners

As Humans Change Landscape, Brains of Some Animals Change, Too“A new study suggests that the brains of several small mammals, including those of the little brown bat, have grown bigger as humans have altered the animals’ living conditions.” – ruh roh.

African genes tracked back“[The researchers] saw signs reflecting two waves of migration: one about 3,000 years ago, of non-Africans entering east Africa, and a second one 900–1,800 years ago, as east Africans migrated to southern Africa and brought non-African genes along with them…. Because of this two-step migration, some Khoe-San groups who were thought to have been genetically quite isolated actually carry 1–5% non-African DNA….”

Study Says Oldest Known Human Y-Chromosome Branch Dates to 338,000 Years Ago – h/t michael anissimov!

Genetic Research Suggests Indian Caste System Began 1,900 Years Ago – h/t david pinsen! – and speaking of castes: Caste outside of India: black blacksmiths from steve sailer.

Handaxe design reveals distinct Neanderthal cultures“Two cultural traditions existed among Neanderthals living in what is now northern Europe between 115,000 to 35,000 years ago…. [T]wo separate handaxe traditions or designs existed – one in a region now spanning south-western France and Britain – the other in Germany and further to the East.”

The Behavioral Ecology of Chimpanzee War and Liberal Peace“[V]iolent aggression among humans and chimps is a flexible natural propensity that tends to be stronger in males than in females, and the expression of that propensity depends on the social circumstances that determine the relative costs and benefits of violent fighting.” – @darwinian conservatism.

Breast feeding, intelligence, and confounded researchers – from dr. james thompson.

Two Failures to Replicate High-Performance-Goal Priming Effects

Babies learn words before birth“Brain responses suggest infants can distinguish distinct sounds from altered versions.”

Women and eye color“There is…a sex difference, with women having a more diverse palette of eye colors.” – from peter frost.

Are atheists mentally ill? – via mr. mangan, esq.

How Personality Affects Fertility: Men’s and Women’s Personalities Linked to Likelihood That They Will Have Children“Men with neurotic personality traits are having fewer children compared to previous generations…. It also found that men who are extraverted and open tend to have more children, while women who rank as conscientious on personality tests tend to have fewer children, although these findings were constant across generations.” – study done in norway. – via hbd bibliography.

Human brains are hardwired for empathy, friendship, study shows

Kinship or Citizenship? – steve sailer reviews mark weiner‘s The Rule of the Clan.

There is no hope of democracy in the Middle East“Most people, in other times and other places, have lived in societies more like Game of Thrones than Borgen, clannish rather than democratic, where people feel their loyalty and duty is towards other members of their extended family or religious community. To get people to work in the best interests of strangers so that you accept their authority when they get more people into the polling booth than you, is an achievement, not a natural state…. Egypt is an ancient civilisation but it is a clannish society….” – from ed west. (^_^) see also: Ed West interview: debating the ‘illusions’ of a diverse society.

Whence Afro criminality? – @thosewhocansee.

Steven Pinker, Science, and “Scientism”“In reality, the issue here is not whether this imaginary ‘science’ object exists and, assuming it does, whether it is ‘good’ or ‘evil.’ It is about whether we should be empowered to learn things about the universe in which we live or not. The opponents of ‘scientism’ typically rail against such things as eugenics, Social Darwinism, and the atomic bomb. These are supposedly the creations of the ‘science’ object. But, in fact, they are no such thing.” – really good stuff @helian unbound. via hbd bibliography. also from h.u. (he’s on a roll this week): Of Ingroups, Outgroups and Ideology.

The Arab Spring has failed because constitutional democracy needs nation-states – via ed west. see also: Egyptian Mirages from thomas sowell – “However widespread the desire to be free, it is wholly different from a desire to live in a society where others are free.” – yup.

How the light gets out – re. consciousness: “…the attention schema theory. It says that awareness is not something magical that emerges from the functioning of the brain. When you look at the colour blue, for example, your brain doesn’t generate a subjective experience of blue. Instead, it acts as a computational device. It computes a description, then attributes an experience of blue to itself. The process is all descriptions and conclusions and computations. Subjective experience, in the theory, is something like a myth that the brain tells itself. The brain *insists* that it has subjective experience because, when it accesses its inner data, it finds that information.”

Notes from Beijing: About That Chinese Social Contract“The traditional Chinese social contract was not a compact between individuals and the state, but a compact between Chinese society as a whole and the state…. Self interested calculations of rational individuals coolly weighing their economic and political interests never really seemed to be part of the program.” – from t. greer.

Fragile and Dangerous – Men with Borderline Personality Disorder – from staffan.

23 Signs You’re Secretly An Introvert – 20 out of 23. (*^_^*) (no way i could give a talk to an audience of 500. No. Way.) – classic link: Caring for Your Introvert.

Genomic Differences Found in Types of Cervical Cancer“…the spectrum of cancer-related gene mutations in the two main subtypes of cervical cancer — adenocarcinoma and squamous cell carcinoma. In tests on 80 cervical tumor samples, the investigators found high rates of mutations in two genes: PIK3CA and KRAS. While PIK3CA mutations appeared in both subtypes, KRAS mutations were found only in adenocarcinomas.”

US behavioural research studies skew positive“US behavioural researchers have been handed a dubious distinction — they are more likely than their colleagues in other parts of the world to exaggerate findings, according to a study published today.”

Neolithic chefs spiced their food“Mineral grains from garlic-mustard seeds found in 6,000-year-old cooking pots.” – mmmmmmm!

Denmark’s historic claim to the Faroes in doubt as archaeologists find proof that islands were inhabited before arrival of first Norse colonists“Discovery indicates existence of sea-faring northern Europeans before Vikings.”

bonus: Birds know road speed limits“Crows, house sparrows and other species judge when to flee the asphalt by average traffic rates rather than an oncoming car’s speed.”

bonus bonus: Beetles eat greedy offspring Edinburgh University research finds“Burying beetles occasionally punish young who nag for food by eating those who pester them most…. It encourages the larvae to plead more honestly according to how hungry they are and not try to outdo their siblings by pestering their mother for food.” – so there!

bonus bonus bonus: Saudi Arabia’s War on Witchcraft“A special unit of the religious police pursues magical crime aggressively, and the convicted face death sentences.”

bonus bonus bonus bonus: Bacteria can cause pain on their own“Microbes caused discomfort in mice by activating nervous system, not immune response.”

bonus bonus bonus bonus bonus: World’s first pocket calculator goes up for auction: ‘Exceptionally rare’ 17th century machine made of wood could fetch £100,000

bonus bonus bonus bonus bonus bonus: Oldest globe to depict the New World may have been discovered

bonus bonus bonus bonus bonus bonus bonus: An update to Maslow’s hierarchy of needs

(note: comments do not require an email. faroe islands craziness!)

Inbred royals show traces of natural selection“Study suggests the Spanish Habsburgs evolved to mute the effects of inbreeding, but other geneticists are unconvinced.”

Time to get tough on the physiological causes of crime“[V]iolent criminals are biologically different from the rest of us.” – review of The Anatomy of Violence: The Biological Roots of Crime.

Scientists find ethnicity linked to antibodies“‘[I]t’s early days,’ emphasizes Watson, ‘but these findings could mean that past environmental exposures to certain pathogens caused DNA insertions or deletions in different ethnic groups, which could impact disease risk. Our results demonstrate that antibody studies need to take into account the ethnicity of DNA samples used.'”

Those resistant to ‘love hormone’ may also be easier to hypnotize“Gene variants linked to social detachment may increase suggestibility.”

One Blessing Of Outbreeding – i didn’t write this, i swear! (you’ll never guess who did…)

The gay germ hypothesis – from peter frost. see also Not Final! from greg cochran.

Another reminder…“[A] prod to certain of my smart liberal friends to start having children.” – from jayman. see also: The end of paternal investment or, more cads, fewer dads from mr. mangan.

The Strange Case of Dr. Robert Trivers“[Trivers] has been driven off the campus of Rutgers University! He has been involved in a controversy lately over his accusation that one of his graduate students committed fraud in a scientific paper. Apparently he was banned from campus because a colleague who supports the alleged fraudster claimed Trivers had ‘frightened him in his office’.” – from helian unbound.

Women graduates of elite colleges 1/3rd more likely to be stay-at-home moms – from steve sailer.

Scent of a Man: Women Can Sniff Out a Hot Guy“Women at their peak fertility prefer the smell of men oozing with testosterone, a new study finds.” – and speaking of testosterone: Testosterone pumps up threats for tough guys“The higher a man’s testosterone level, the more macho he’s likely to act when his masculinity is threatened, a new study finds.”

The Real ‘Hobbit’ Had Larger Brain Than Thought

Egyptian mummies yield genetic secrets“The ancient Egyptians could soon be getting their genomes sequenced as a matter of routine.”

Why Menopause?

Stonehenge occupied 5,000 years earlier than thought

The Pattern of Female Nuptiality in Oman“[M]ore than half (52%) of the total marriages in Oman are consanguineous. First cousin unions are the most common type of consanguineous unions, constituting 39% of all marriages and 75% of all consanguineous marriages. About 11% of the marriages are polygynous…. [P]aternal first-cousin marriages constituted 27.7% of all marriages and 72% (565/786) of all first-cousin marriages, while maternal first-cousin marriages constituted 10.8% of all marriages and 28% (221/786) of all first-cousin marriages.”

The Ancient Greeks & Romans, Beauty and Human Biodiversity – @occam’s razor.

Could Life Be Older Than Earth Itself?“[T]wo geneticists have applied Moore’s Law to the rate at which life on Earth grows in complexity — and the results suggest organic life first came into existence long before Earth itself.”

Chimps Communicate Like Passionate Italians – my favorite headline of the week. (^_^)

Live fast, die younger: Actors, singers and sportsman ‘die seven and a half years before other high achievers’

Historic human remains yield epigenetic tags – see also: Epigenetic Inheritance: Fact or Fiction?

Icelandic anti-incest app keeps residents from becoming kissin’ cousins – previously íslendingabók.

‘Real men wear kilts': The anecdotal evidence that wearing a Scottish kilt has influence on reproductive potential: how much is true? – keep wearin’ yer kilt!

Did this magical little crystal help the Vikings rape and pillage across the world?“Research suggests crystal salvaged from a shipwreck may be a sunstone”

bonus: What rights should Dzhokhar Tsarnaev get and why does it matter?“The Obama DOJ says it intends to question the Boston bombing suspect ‘extensively’ without first Mirandizing him”

bonus bonus: Applicants wanted for a one-way ticket to Mars – let’s go! (^_^)

bonus bonus bonus: ‘Living fossil’ genome unlocked“The genes of an ancient fish, the coelacanth, have much to reveal about our distant past.”

bonus bonus bonus bonus: Chlamydia Is Killing Koalas — Will Genetics Find a Cure?

(note: comments do not require an email. ugly fish!)

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