Archives for posts with tag: ötzi

Somebody was on Sulawesi before 118,000 years ago – from john hawks.

Human-Neanderthal relationships may be at root of modern allergies“Three genes inherited from our Neanderthal cousins may cause modern carriers to have an overly-sensitive immune system susceptible to allergies.”

Grisly find suggests humans inhabited Arctic 45,000 years ago“When they dated the remains [of the mammoth], the researchers got another surprise: The mammoth died 45,000 years ago. That means that humans lived in the Arctic more than 10,000 years earlier than scientists believed, according to a new study. The find suggests that even at this early stage, humans were traversing the most frigid parts of the globe and had the adaptive ability to migrate almost everywhere.”

DNA sequencing reveals the fate, and ultimate extinction, of Ötzi the Iceman’s maternal genetic lineage – h/t jason moore!

Genetic affinities of the Jewish populations of India“Consistent with the previous observations, we detected minor Middle Eastern specific ancestry component among Indian Jewish communities, but virtually negligible in their local neighbouring Indian populations. The temporal test of admixture suggested that the first admixture of migrant Jewish populations from Middle East to South India (Cochin) occurred during fifth century. Overall, we concluded that the Jewish migration and admixture in India left a record in their genomes, which can link them to the ‘Jewish Diaspora’.”

Conflict among honey bee genes supports theory of altruism – h/t steve stuart williams! who tweeted: “New genetic evidence provides strong support for kin selection theory.” – see also: Testing the kinship theory of intragenomic conflict in honey bees (Apis mellifera).

Review of: Hive mind: How your nation’s IQ matters so much more than your own (G. Jones) – from stuart ritchie. – see also here.

The Welfare Trait – dr. james thompson on adam perkins‘ book. make sure not to miss the series of follow-up posts!

A Review of Adam Perkins’s ‘The Welfare Trait’“Painstakingly, Perkins constructs his core argument: that the welfare state, the foundational institution of modern Britain (the Church of England having sadly declined), contains the seeds of its own eventual destruction. A large body of evidence, which Perkins reviews, supports the intuitive idea that habitual welfare claimants tend to be less conscientious and agreeable than the average person. Such habitual claimants also tend to reproduce at higher rates than the general population, a pattern found across nations and time periods. They also seem to adjust their fertility in response to changes in the generosity of welfare provision, having fewer children in times of austerity and more when governments turn on the spigot marked ‘spending’. Over time, therefore, the work motivation of the general population is lowered. This occurs through both genetic and environmental channels. Personality traits are substantially heritable (meaning that a decent percentage of the variation in these traits is due to naturally occurring genetic variation). Given this fact, habitual welfare claimants with employment-resistant personalities are likely to have offspring with similar personalities.” – from andrew sabisky.

Tell the truth about benefit claimants and the liberal left shuts you down“How neuro­biologist Dr Adam Perkins became a victim of the new McCarthyism.” – from toby young.

The left’s own war on science“The witch hunt against Napoleon Chagnon shows us what happens if scientists challenge the core beliefs of ‘progressives.’” – also from toby young.

Similar selection pressures on fluid g and educational attainment-related SNPs – from davide piffer.

Colorectal cancer more likely to affect minorities at younger age“Study shows US racial, ethnic groups under the age of 50 have increased risk.”

Genetic Correlation Between Schizophrenia and Epilepsy

Where Are We Now? – David Bowie and Psychosis – @mind hacks.

NatureNewsVietnam begins huge effort to identify war dead“World’s largest systematic identification project will use smart DNA-testing technology.”

Physics Has Einstein, Biology Has Darwin. Economics Has… – from david sloan wilson who tweeted: “It’s embarrassing that top economists who write about theory are clueless about evolutionary theory.”

Professors moved left since 1990s, rest of country did not – @heterodox academy.

A Single Mutation May Have Sparked Multicellular Life

Supernatural punishment: the common denominator“So here’s the question: Is religion evolutionarily advantageous…? I hypothesise that supernatural punishment was a very important promoter of cooperation and a way to reduce self-interest, which was vital to the evolution of human societies.”

Bronze Age houses uncovered in Cambridgeshire are Britain’s ‘Pompeii’

4,500-year-old rattles found in infant burial – in russia.

Tajikistan: Lawmakers Tighten Rules on Baby-Naming, Marriage“The stricter rules on marriage have been introduced partly as a way of reducing the incidence of disabilities among children, which officials argue are the result of intensive inbreeding. Consequently, marriage among cousins and cousins-once-removed will be forbidden.” – h/t the gazillion people who sent this to me! (^_^) (#BigInTajikistan)

aaaannnddd…the tweet of the week!:

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Humans are still evolving despite massive recent lifestyle changes, study finds – no way! =P – “The researchers analysed church records of births, marriages and deaths for 10,000 inhabitants of seven parishes in Finland since the beginning of the 18th Century and concluded that evolution is still occurring despite the dramatic cultural changes over the same period. ‘We are still evolving. As long as some individuals have more children and other individuals have fewer children than others, there is potential for evolution to take place,’ said Elisabeth Bolund of Uppsala University in Sweden. Dr Bolund and her colleagues at the universities of Sheffield and Turku in Finland…found that between 4 and 18 per cent of the variations between individuals in lifespan, family size and ages of first and last childbirth were influenced by genes. ‘This is exciting because if genes affected differences between individuals in these traits, it means they could also change in response to natural selection,’ Dr Bolund said…. The study, published in the journal Evolution, showed that the genetic influence on the timing of when someone is likely to begin a family and the overall size of the family has actually risen higher in recent times compared to the 18th and 19th Centuries. This means that modern humans could still be evolving because people are responding to Darwinian natural selection on the genetic differences between individuals within the population, the scientists said. ‘It is possible that we in modern societies have more individual freedom to express our genetic predispositions because social influences are more relaxed, and this leads to the genetic differences among us explaining more of the reproductive patterns,’ Dr Bolund said.” – h/t ed west!

The decline of human endogenous retroviruses: extinction and survival“[W]e show that the human genome and that of other hominoids (great apes and gibbons) have experienced an approximately four-fold decline in the ERV integration rate over the last 10 million years.” – huh.

Did Fishermen Find Evidence of an Unknown Group of Primitive Humans?“A fossilized jawbone pulled from the seafloor near Taiwan may be from an ancient type of hominin new to science…. [M]ultiple lineages of extinct humans may have coexisted in Asia before the arrival of modern humans.”

Neanderthals disappeared from the Iberian Peninsula earlier than in the rest of Europe

from lawrence kruass“An interesting fact from Svante Paabo: How related are we to Neanderthals? On average like 1 Neanderthal relative 6 generations back!”

Fossil Provides Evidence Of Early Human Migration To Europe“Some 55,000 years ago, a person — whether female or male, we don’t know — lived in Manot Cave in the western Galilee area of what is now Israel. Judging from the partial skull recovered from the cave, and described in Nature last week by Israel Hershkovitz of Tel Aviv University and his co-authors, the person was anatomically modern and closely related to the first modern humans who went on to colonize Europe.” – see also The Manot 1 skull and how we now look at Neandertal ancestry in early modern humans from john hawks.

Before Agriculture, Human Jaws Were a Perfect Fit for Human Teeth“The emergence of agricultural practices initiated major changes to the jaw structure of ancient humans, leading to dental problems we still experience.”

Half of our [european] ancestry comes from the Pontic-Caspian steppe“Here’s the latest teaser for the new David Reich et al. paper on the ethnogenesis of present-day Europeans. It’s part of an abstract for a seminar to be held by Professor Reich at Jesus College, Oxford, on February 9. Interestingly, it argues that migrations from the steppe resulted in a ~50% population turnover across northern Europe from the late Neolithic onwards.” – see also Strong (?) linguistic and archaeological evidence for steppe Indo-Europeans from dienekes.

A couple of AAPA 2015 abstracts to blow your socks off“‘The origins of the Aegean palatial civilizations from a population genetic perspective.'” – cool! (^_^)

Mapping 61 Ancient Tattoos on a 5,300-Year-Old Mummy – ötzi the iceman had 61 tattoos!

Large multiallelic copy number variations in humans“Thousands of genomic segments appear to be present in widely varying copy numbers in different human genomes…. We find that mCNVs give rise to most human variation in gene dosage—seven times the combined contribution of deletions and biallelic duplications—and that this variation in gene dosage generates abundant variation in gene expression.”

Your IQ in 13 genes (or about 29% of it) – from dr. james thompson.

105 years of the Flynn effect: very fluid“Into this torrent of Flynn-Effectism jump Jakob Pietschnig and Martin Voracek with a large raft of a paper which runs to 179 pages, which is what you get when you have the temerity and the Teutonic thoroughness to plough through 105 years of data and assemble 271 independent samples from 31 countries, totalling almost four million participants. What sorts of childhood do German speakers have, which drives them to these immense labours?” – (~_^) – also from dr. james thompson.

Academic performance of opposite-sex and same-sex twins in adolescence: A Danish national cohort study – h/t jayman! who tweeted: “Opposite sex DZ twins & their math grades shows little evidence of hormonal masculinization in utero.”

from sam dumitriu“Serial killers who kill for enjoyment rather than financial gain are on average 10 IQ points smarter.” [source] (…out of the ones that have been caught. =/ )

Intergenerational Wealth Mobility in England, 1858-2012: New evidence based on rare surnames“Descendants of the wealthy people of England in 1850 are still wealthy. They also have longer life spans than the average person; they are much more likely to attend Oxford or Cambridge; they still live in more expensive neighbourhoods; and they are more likely to be doctors or lawyers.”

Social mobility barely exists but let’s not give up on equality“Too much faith is placed in the idea of movement between the classes. Still, there are other ways to tackle the unfairness of society.” – from greg clark. h/t ben southwood!

Chimps with higher-ranking moms do better in fights

Genetic analysis of human extrapair mating: heritability, between-sex correlation, and receptor genes for vasopressin and oxytocin“[W]e used data on recent extrapair mating in 7,378 Finnish twins and their siblings. Genetic modelling showed within-sex broad-sense heritability — i.e. the percentage of variation in extrapair mating due to genetic variation — of 62% in men and 40% in women. There was no between-sex correlation in extrapair mating, making indirect selection unlikely. Based on previous animal and human findings, we also tested for association of the arginine vasopressin receptor 1A gene (AVPR1A) and oxytocin receptor gene (OXTR) with extrapair mating. We found gene-based association for AVPR1A in women but not in men, and OXTR showed no significant association in either sex. Overall, these findings confirm genetic underpinnings of extrapair mating in humans, but do not suggest that women’s predisposition to extrapair mating is due to selection on men.” – h/t erwin schmidt!

Sources of Marital Conflict in Five Cultures [pdf] – h/t jayman! who tweeted: “‘Marital conflict tends to arise around issues relevant to reproductive strategies.'”

Science Is Not Always “Self-Correcting”“Some prominent scientists and philosophers have stated openly that moral and political considerations should influence whether we accept or promulgate scientific theories. This widespread view has significantly influenced the development, and public perception, of intelligence research. Theories related to group differences in intelligence are often rejected a priori on explicitly moral grounds. Thus the idea, frequently expressed by commentators on science, that science is ‘self-correcting’ — that hypotheses are simply abandoned when they are undermined by empirical evidence — may not be correct in all contexts.” – no, indeed. =/ – from nathan cofnas.

Liberal Bias in Social Psychology: Personal Experience II“‘To what extent is research on politicized topics in social psychology, psychology, and the social sciences distorted by political bias?’ Or, put differently, how much does political bias lead us to entirely unjustified and invalid conclusions?” – h/t claire lehmann! see also Liberal Bias in Social Psychology: Personal Experience I.

Harsh environments and “fast” human life histories: What does the theory say?“A common belief among human life history researchers is that ‘harsher’ environments – i.e., those with higher mortality rates and resource stress – select for ‘fast’ life histories, i.e. earlier reproduction and faster senescence. I show that these ‘harsh environments, fast life histories’ – or HEFLH – hypotheses are poorly supported by evolutionary theory.” – h/t razib!

Lifecycle Patterns in the Socioeconomic Gradient of Risk Preferences [pdf] – h/t ben southwood! who tweeted: “Risk tolerance drops by 0.5sd between adolescence and age 40, but for badly-off it continues dropping to extremity.”

Evidence of polygenic selection on human stature inferred from spatial distribution of allele frequencies – from davide piffer who tweeted: “Different populations have different levels of genotypic height.”

Shared Genetic Influences Between Attention-Deficit/Hyperactivity Disorder (ADHD) Traits in Children and Clinical ADHD

Dorian Gray without his portrait: Psychological, social, and physical health costs associated with the Dark Triad“Examined the Dark Triad and health in American, Australian, and British samples. Psychopathy was best associated with ‘negative’ health outcomes. Narcissism was associated with ‘positive’ health outcomes…. Sex differences in health outcomes were partially mediated by the Dark Triad.”

DNA methylation age of blood predicts all-cause mortality in later life – h/t stuart ritchie! (i don’t wanna die! =o )

Study uncovers genetics of motion sickness – i betcha i have every. single. one. =/

Correlation: The devil rides again? – bryan pesta on correlation…on his new(-ish) blog!

I Don’t Belong Here – on immigrants in france and their problems. lots o’ data! as usual from those who can see!

Your DNA Is Nothing Special“It’s time to relax about genetic testing.” see also: It’s time for the United States to talk about genetics.

diana fleischman tweets: “85% of students in my lecture today think people shouldn’t be able to choose the sex of their baby.” also, from pew: “83% of Americans say changing a baby’s genes to make it more intelligent takes science too far.”

Why There Is No Perfect Human In Puerto Rico or Anywhere Else – h/t shrikant mantri!

Amazonian horticulturalists live in larger, more related groups than hunter–gatherers“Endogamous marriages among kin create intensive kinship systems with high group relatedness, while exogamous marriages among nonrelatives create extensive kinship with low group relatedness. Here, a sample of 58 societies (7,565 adults living in 353 residential groups) shows that average group relatedness is higher in lowland horticulturalists than in hunter–gatherers. Higher relatedness in horticulturalists is remarkable given that village sizes are larger, harboring over twice the average number of adults than in hunter–gatherer camps. The relatedness differential between subsistence regimes increases for larger group sizes.” – h/t andrew sabisky! (thanks, andrew! (^_^) )

On the Whole How You Raise Kids Doesn’t Matter Much – from razib.

Searching For The Origins Of Individualism And Collectivism

The Implicit Assumptions Test“Does the IAT measure what proponents claim it does?” – short answer: no. – h/t steve stewart williams!

Liberal countries have more satisfied citizens while conservatives are happier individuals

How secular family values stack up“[Bengston] was surprised by what he found: High levels of family solidarity and emotional closeness between parents and nonreligious youth, and strong ethical standards and moral values that had been clearly articulated as they were imparted to the next generation. ‘Many nonreligious parents were more coherent and passionate about their ethical principles than some of the “religious” parents in our study,’ Bengston told me. ‘The vast majority appeared to live goal-filled lives characterized by moral direction and sense of life having a purpose….’ [N]onreligious family life is replete with its own sustaining moral values and enriching ethical precepts. Chief among those: rational problem solving, personal autonomy, independence of thought, avoidance of corporal punishment, a spirit of ‘questioning everything’ and, far above all, empathy. For secular people, morality is predicated on one simple principle: empathetic reciprocity, widely known as the Golden Rule. Treating other people as you would like to be treated…. As one atheist mom who wanted to be identified only as Debbie told me: ‘The way we teach them what is right and what is wrong is by trying to instill a sense of empathy … how other people feel. You know, just trying to give them that sense of what it’s like to be on the other end of their actions.'”

Iceland to build its first temple to the Norse gods in 1,000 years

Formation-flying birds swap places to share out lift – h/t steve stewart williams! who tweeted: “Reciprocal altruism is rare in nonhuman animals, but it looks like scientists have found another example.”

Commentary: Weighing the cost of ‘home rule’ in Maine“The state’s system of strong municipal governments is rooted in the early Puritans’ fear of centralization of power.” – from colin woodard.

The Massacre of Europe’s Songbirds – by italians and balkan populations. h/t mr. robert ford!

Ancient tablets reveal life of Jews exiled in Babylon“…where the Judeans traded, ran businesses and helped the administration of the kingdom. ‘They were free to go about their lives, they weren’t slaves,’ Vukosavovic said. ‘Nebuchadnezzar wasn’t a brutal ruler in that respect. He knew he needed the Judeans to help revive the struggling Babylonian economy.'”

Discovery of writing at Peru’s Checta – possible 5000 year old writing from peru. h/t charles mann!

Found in Spain: traces of Hannibal’s troops – h/t donna yates!

Among New York Subway’s Millions of Riders, a Study Finds Many Mystery Microbes“Researchers at Weill Cornell Medical College released a study on Thursday that mapped DNA found in New York’s subway system — a crowded, largely subterranean behemoth that carries 5.5 million riders on an average weekday, and is filled with hundreds of species of bacteria (mostly harmless), the occasional spot of bubonic plague, and a universe of enigmas. Almost half of the DNA found on the system’s surfaces did not match any known organism and just 0.2 percent matched the human genome.” – ruh roh. =/

bonus: Even cockroaches have personalities – personality goes a long way. (~_^)

bonus bonus: In Bedbugs, Scientists See a Model of Evolution – h/t hbd bibliography!

bonus bonus bonus: from john hawks“[M]ale anthropology instructors are vastly more likely to exude spittle than any other field.” =P

bonus bonus bonus bonus: ricky gervais loves natural selection. (~_^)

bonus bonus bonus bonus bonus: A Great Idea: Create an HMS Beagle in LEGO Form“Vote to turn this tiny version of a famous ship into a LEGO kit available for all to enjoy.” – legohhhhhhhhs!!

bonus bonus bonus bonus bonus bonus: The Closest Thing to STAR WARS’ Greedo is Now a CatfishPeckoltia greedoi! (^_^)

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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!)

The genetic history of Europeans – from dienekes.

The DNA Olympics — Jamaicans Win Sprinting ‘Genetic Lottery’ — and Why We Should All Care – in which jon entine sneaks the phrase “human biodiveristy” into forbes online. (^_^)

Neandertal ancestry “Iced”“The genome of this Neolithic-era individual [Ötzi] shows a substantially higher degree of Neandertal ancestry than living Europeans.” – from john hawks.

Analysis Of China’s PISA 2009 Results – anatoly concludes that china’s pisa-derived iq is ≈ 102.5.

What predicts college grades better than IQ score?“At the university level, introversion predicts academic performance better than cognitive ability.” – from barking up the wrong tree, via foseti.

Parents also choose“[I]n many if not most societies, men, i.e. fathers, decide which man is allowed to mate with his daughter or other female relative.” – @the breviary.

A GPS in Your DNA“Using a probabilistic model of genetic traits for every coordinate on the globe, the researchers have developed a method for determining more precisely the geographical location of a person’s ancestral origins.”

Early birds have the best temperament profile – but night owls have higher iqs. (~_^) – from the inductivist.

Fertile Gals Have All the Right Dance Moves“Women in the fertile phase of their menstrual cycle are judged as more attractive dancers by men than are women in a less-fertile phase, a new study finds.”

Genetically engineering ‘ethical’ babies is a moral obligation, says Oxford professor“‘Indeed, when it comes to screening out personality flaws, such as potential alcoholism, psychopathy and disposition to violence, you could argue that people have a moral obligation to select ethically better children.'” – hmmm. who’s going to go first? mightn’t their kids be at a disadvantage in some situations? see also: The wrongs, and rights, of genetic screening for children.

Sporting aggression more common in opponents of a similar ability than in contests between unequal teams“The same is also true of aggressive contests between individuals in the animal kingdom, whether it is rutting deer stags or quarrelsome Siamese fighting fish. Now scientists believe they have found evidence for the same trait in competing groups of sportsmen.”

bonus: ‘Who’s Your Daddy’ Truck Rolls Through NYC, Offers Answers With DNA Tests

bonus bonus: Gorillas certainly show emotion – but what do they feel?

bonus bonus bonus: What you don’t know can hurt you“In 1972, the U.S. passed the Clean Water Act, despite a presidential veto by Richard Nixon. Did this act also end an era of unusually high estrogen levels in the environment?” – from peter frost.

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One gene helped human brains become complex“A single ancestral human gene that made two copies of itself may have helped the evolution of our large brains 2.5 million years ago, as our ancestors were diverging from australopithecines.”

Blonde hair evolved independently in Pacific islands

Humans Really Are Still Evolving, Study Finds“Natural forces of evolution still continue to shape humanity despite the power we have to profoundly alter the world around us, researchers say.” – duh. original research article: Natural and sexual selection in a monogamous historical human population

The Great White Horse“A racial group is a partly inbred extended family. The inbreeding gives races more coherence and persistence than typical extended families.” – from steve sailer.

Blacks more likely to commit hate crimes than white – from the audacious epigone.

Rushton on the skin color/behavior correlation“[T]he theory that genes explain the worldwide correlation between skin tone and important behaviors” – from the inductivist.

HBD and Atheism – from jayman.

HBD and policy: Which questions to ask? – from m.g. @the hbdday blog!

World’s Oldest Blood Found in Famed “Iceman” Mummy

Amish farm kids remarkably immune to allergies: study

9-Month-Olds Show Racial Bias When Looking at Faces“‘These results suggest that biases in face recognition and perception begin in preverbal infants, well before concepts about race are formed.'”

Study: Aversion to the smell of meat may be genetic“[P]eople who have two copies of a particular odour receptor gene variant [OR7D4 RT] are more likely to find the smell of a hormone that occurs in pork unpleasant.”

Did Ancient Germans Steal the Pharaoh’s Chair Design?“Roughly 3,500 years ago, folding chairs remarkably similar to ones found in Egypt suddenly became must-have items in parts of northern Europe.”

‘Inhabitants of Madrid’ ate elephants’ meat and bone marrow 80,000 years ago

bonus: Dark Matter May Collide With Atoms Inside You More Often Than Thought – ouch!

bonus bonus: Scientific Evidence Proves why Healers See the “Aura” of People – synesthesia.

bonus bonus bonus: Are Educators Showing A “Positive Bias” To Minority Students – and Keeping Them From Doing Their Best?

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