Archives for posts with tag: genes and taste

Stone Age skull from Kenya reveals astonishing human diversity“A partial human skull found at a site in Kenya suggests early humans living in Africa were incredibly diverse. The 22,000-year-old skull is not a new species and is clearly that of an anatomically modern human, but is markedly different from similar finds from Africa and Europe from the same time, the researchers said…. [T]he new findings suggest that during this early period of human history, Africa may have supported even greater human diversity, with small, offshoot lineages that no longer exist today….”

A New Theory on How Neanderthal DNA Spread in Asia“Researchers have discovered that Neanderthals interbred with the ancestors of Asians at two points in history, giving this population an extra infusion of Neanderthal DNA.”

Division of labor by sex and age in Neandertals: an approach through the study of activity-related dental wear“The study reveals that all individuals have cultural striations, but those detected on the adult females are longer than the striations found in adult males. Regarding the distribution of dental chipping, the prevalence of this trait is higher in the maxillary dentition of males whereas females have the majority of dental chipping on their mandibular teeth. T he differences detected on the overall activity-related dental wear pattern denote a difference or a division of labor by age and sex in Neandertals while using the mouth as a third hand, i.e., in activities other than the provisioning of food, and provide new evidence for the lifestyle of this Pleistocene fossil human species.” – h/t paleogenomics!

European languages linked to migration from the east“Large ancient-DNA study uncovers population that moved westwards 4,500 years ago.” — see also Massive Migration and Origins from greg cochran.

A story of 69 ancient Europeans – from dienekes. you need to read this one!

Genetic Characterization of Human Populations: From ABO to a Genetic Map of the British People – see map here @dienekes’.

Y chromosomes and Catalan surnames“‘By genotyping 17 Y-STRs and 68 SNPs in ~2500 male samples that each carried one of the 50 selected Catalan surnames, we could determine sets of descendants of a common ancestor, the population of origin of the common ancestor, and the date when such a common ancestor lived. Haplotype diversity was positively correlated with surname frequency, that is, rarer surnames showed the strongest signals of coancestry. Introgression rates of Y chromosomes into a surname by non-paternity, adoption, and transmission of the maternal surname were estimated at 1.5−2.6% per generation, with some local variation. Average ages for the founders of the surnames were estimated at ~500 years, suggesting a delay between the origin of surnames (twelfth and thirteenth centuries) and the systematization of their paternal transmission. We have found that, in general, a foreign etymology for a surname does not often result in a non-indigenous origin of surname founders; however, bearers of some surnames with an Arabic etymology show an excess of North African haplotypes.'” – @dienekes’.

Genetic evidence for an origin of the Armenians from Bronze Age mixing of multiple populations

Stone Age skeleton judged Norway’s oldest – 8000 years old.

Italic “Eteocretan” Sea peoples? – also @dienekes’.

Making Discoveries about Human Evolution Using 3D Technology

Make Love, Not Disease“New research on the genetic advantages of sexual reproduction has found that blending our genes through sex helps purge us of disease mutations.”

Human Genome Studies Reveal How Little Is Necessary To Explain the Human DNA Behind our Bigger Brains

Gene Changes Make Humans’ Sense of Taste Unique“Our ability to eat bitter plants help distinguish us from our ancestors and chimpanzees today.”

Dominance Genetic Variation Contributes Little to the Missing Heritability for Human Complex Traits – h/t gerome breen!

Elevated germline mutation rate in teenage fathers [pdf] – “We observe, as expected, that the overall mutation rate for fathers is seven times higher than for mothers. Also as expected, mothers have a low and lifelong constant DNA mutation rate. Surprisingly, however, we discover that (i) teenage fathers already set out from a much higher mutation rate than teenage mothers (potentially equivalent to 77–196 male germline cell divisions by puberty); and (ii) ageing men maintain sperm DNA quality similar to that of teenagers….” – h/t andrew sabisky! jayman tweeted: “8.2% false paternity rate in West Africans and 1.3% in Middle Easterners in this sample.”

Escape from crossover interference increases with maternal age – h/t billare! who tweeted: “Higher recombination rates in older women, being less concentrated in the usual hotspots. Men tend to stick w/theirs.”

Predicting and retrodicting intelligence between childhood and old age in the 6-Day Sample of the Scottish Mental Survey 1947“Terman–Merrill Stanford–Binet intelligence test scores at age 11 years correlated .72 with verbal intelligence at age 77. Adding another test from age 11 and educational took the multiple R to .81. National Adult Reading Test scores at age 77 and educational had a multiple R of .75 with IQ scores at age 11.” – h/t stuart ritchie! — see also Steady as she goes from dr. james thompson.

Peer effects: they exist but they’re not very big – from ben southwood.

Indian states: G and S factors – from emil kirkegaard.

State IQ estimates (2013) and 2013 IQ estimates by state, total and white only and State IQ estimates, blacks only (2013) and State IQ estimates, Hispanics only (2013) and IQ by race and parental educational attainment – from the awesome epigone.

Nailing liberalism / conservatism by the 50 U.S. States – from bryan pesta.

Low IQ ups risk of heavy drinking among men“The researchers analysed data collected from 49,321 Swedish males born during 1949 to 1951 and who were conscripted for Swedish military service from 1969 to 1971. IQ results were available from tests performed at conscription, and questionnaires also given at conscription provided data on total alcohol intake (consumed grams of alcohol/week) and pattern of drinking, as well as medical, childhood and adolescent conditions, and tobacco use. Adjustments were made for socio-economic position as a child, psychiatric symptoms and emotional stability and the father’s alcohol habits. ‘We found that lower results on IQ tests in Swedish adolescent men are associated with a higher consumption of alcohol, measured in both terms of total intake and binge drinking,’ Sjolund said.” h/t ruta akula!

Mathematical Proof Is Not Minutiae And Irreducible Complexity Is Not A Theory: A Final Response To Burt And Simons And A Call Tl Criminologists – from brian boutwell et al. brian tweeted: “Our second response to the call within Criminology to ban twin research.”

Familial Clustering of Tic Disorders and Obsessive-Compulsive Disorder – h/t amir sariaslan!

A two-dimensional model of psychopathy and antisocial behavior: A multi-sample investigation using items from the Psychopathy Checklist-Revised – h/t richard harper! who tweeted: “[P]sychopathy as fearless affect plus disinhibited lifestyle, then plus anti-social to get crime.”

Birds of a “bad” feather flock together: The Dark Triad and mate choice“[W]omen high in psychopathy considered the Dark Triad traits in potential male partners more physically attractive and desirable for an one-night stand, as well as a potential husband. Men who were high on psychopathy were likewise attracted to psychopathy in potential mothers.”

Cads and dads“Promiscuity and fidelity seem to be specific biological adaptations. Their manifestations in men and women are not as different as you might expect.” (whatever’s gotten into the economist these days?)

Genetic similarity between mates predicts extrapair paternity — a meta-analysis of bird studies

Who cares? Why evolution suggests parenting responsibility is seldom equally shared

Sex Differences in Preferences for Humor: A Replication, Modification, and Extension [pdf] – “[M]en prefer women who are receptive to their humor whereas women prefer men who produce humor. These findings held even after we modified Bressler et al.’s questionnaire for better conceptual validity. Furthermore, using a separate measure designed to assess trade-offs, we found that men viewed humor receptivity as a necessity and humor production as a luxury when they were asked to create an ideal long-term partner. For women, it was just the opposite.”

How Big are Psychological Sex Differences?“Sex Differences are Not Small if You Know Where to Look” – h/t claire lehmann!

Prenatal hyperandrogenic environment induced autistic-like behavior in rat offspring – h/t simon baron-cohen!

The influence of prenatal hormones on occupational choice: 2D:4D evidence from Moscow“Women in enterprising occupations exhibited lower measured 2D:4D ratios than average. Those in conventional and social work had higher 2D:4D ratios. Results confirm previous findings on 2D:4D and gender-specific occupational interests.”

Examining the Impact of Peer Group Selection on Self-Reported Delinquency: A Consideration of Active Gene–Environment Correlation – h/t jayman! who tweeted: “Do peers still influence adolescent delinquency after taking into account genetic influences? No.”

Socioeconomic status and sick leave granted for mental and somatic disorders: a prospective study of young adult twins“Low SES is associated with a higher level of sick leave granted for both mental and somatic disorders among young adults, but these associations are confounded by factors that are common to co-twins. Education and income are therefore not likely to strongly affect sick leave in young adulthood.”

List of genetic confounds – from emil kirkegaard.

Sibling differences in low birth weight, dopaminergic polymorphisms, and ADHD symptomatology“[L]ow birth weight siblings are at significantly greater risk of exhibiting symptoms of ADHD during childhood relative to their normal birth weight siblings. Moreover, possessing greater genetic risk on three dopaminergic genes (DAT1, DRD2, and DRD4) relative to a sibling appears to exacerbate the link between sibling differences in birth weight and sibling differences in ADHD symptomatology.”

What is different about the brains of “SuperAgers”“Compared with average elderly individuals, they found fewer Alzheimer-type neurofibrillary tangles and an increased packing density of von Economo neurons, especially in the anterior cingulate.”

“Bad genes” & criminal responsibility – MAOA stuff.

Heritability & the left“[T]here’s no conflict between leftism and a belief in the heritability of ability.” – that’s what i said! see also: Heritability, Left and Right.

What does it say about Owen Jones that he isn’t interested in scientific research?“What I find irritating about progressive politics is that it ignores and contradicts science, while at the same time pretending to be in favour of reason. The entire worldview is based on the tabula rasa idea of human nature which is contradicted by science. The blank slate makes the progressive goal of equality of outcomes possible; indeed, if equality is not achieved there can only be nefarious forces at work and ‘more work to be done’.” – from ed west. see also Fancy a job in academia or the media? Best brush up on the new political correctness“[Political correctness is] a faith, and it does not matter how daft the belief systems of a faith appear to a rational mind; if its critics sound backwards and out of touch and rural – literally ‘pagan’ – it will succeed.”

Both liberals and conservatives have anti-science biases, study finds“New research suggests that liberals, as well as conservatives, can be biased against science that doesn’t align with their political views.” — see also Nuclear Power and the Anti-Science Ideology of the “Progressive” Left from helian.

Why science is so hard to believe“Science appeals to our rational brain, but our beliefs are motivated largely by emotion, and the biggest motivation is remaining tight with our peers. ‘We’re all in high school. We’ve never left high school,’ says Marcia McNutt. ‘People still have a need to fit in, and that need to fit in is so strong that local values and local opinions are always trumping science. And they will continue to trump science, especially when there is no clear downside to ignoring science.'”

John Derbyshire On Culturalists vs. Biologians; Or, Where Is The American Harald Eia?

Have Mormons been bred for gullibility? – from agnostic.

Islam Is Not a Religion of the Book“By this, I mean that as a whole humans are prone to accepting the primary causal role of reflective cognition, of beliefs avowed and rationales offered. We are confident in our conscious self control, despite a robust body of cognitive psychology which implies that much of our cognition is not under the control or constraint of rational faculties. This problem is particularly extreme among intellectuals, the very class which also attempts to understand human phenomena. Through the simple process of introspection and extrapolation intellectuals tend to reduce human action to the outcome of ratiocination, inference from eternal axioms. This is wholly inadequate to a phenomenon as complex as religion.” – from razib.

Your DNA is everywhere. Can the police analyze it?“Supreme Court weighing if we must live in sealed bubbles to maintain DNA privacy.”

FDA panel could soon approve 23andMe home genetics test

Linguists link English, Hindi to single ancestor language spoken 6,500 years ago – h/t steve stewart williams!

Old India’s Village of Warriors Becomes Birthplace of Bouncers“Look closely and it becomes clear that the bouncers are all of a single physical type, their chests and biceps built like the front bumper of a sport utility vehicle. If they look like cousins, it is because they are. A startling number of them share a family name, Tanwar, and when the nightclubs close many will return to the same nearby village, a place where women walk down dusty lanes with their faces obscured by a cloth, balancing stacks of dried cow dung on their heads, much as their ancestors did three centuries ago…. The musclemen from the village of Fatehpur Beri are the descendants of the original inhabitants of the city, a genetic line that fortified itself over the course of centuries as they defended their village against waves of invaders on their way to the seat of empire. The sons and grandsons of cow and goat herders, they were born in an outpost surrounded on all sides by croplands. As Fatehpur Beri was swallowed by the expanding city, its spartan strongmen continued to train in the traditional way, stripping down to loincloths and wrestling in a circle of mud. But they were forced to look for a new line of work. ‘There is an element of the warrior in the Tanwars,’ said Ankur Tanwar, who opened the village’s first gym about a decade ago. ‘We fought with the Muslim invaders. We fought with the Britishers.'”

Ancient Egyptians had state-supported health care – at least some of them did.

bonus: Man’s best friend…unless you’re lying: How dogs can sense whether a person is trustworthy – h/t ninja economics! also: When you’re happy and you show it, dogs know it.

bonus bonus: The Cold May Have Cost Penguins Most of Their Taste Buds“Recent genetic analysis shows that penguins can’t taste sweet or bitter, and scientists think sub-zero temps may be to blame.”

bonus bonus bonus: Limpet teeth set new strength record

bonus bonus bonus bonus: Study Finds Jack Shit – h/t jayman!

bonus bonus bonus bonus bonus: Lost Sherlock Holmes story discovered

bonus bonus bonus bonus bonus bonus: a poem. (^_^)

bonus bonus bonus bonus bonus bonus bonus: #TheTitleOfMySexTape (~_^)

(note: comments do not require an email. limpet tooth.)

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The Earliest Group Of Modern Humans To Branch Off Survived Until Just 2,300 Years Ago – h/t mr. robert ford!

Archaeologists unearth remains of oldest Norman ever found which ‘fills gap in our knowledge of pre-Neanderthal evolution’“On a bend of the river Seine near Rouen in Normandy, archaeologists have found the remains of the oldest Norman ever discovered. The three bones from the left arm of a pre-Neanderthal should shed fresh light on a little-known period. In particular, they could help scientists to understand the evolution of the squat, muscular hunters who died out 30,000 to 40,000 years ago, just after the first humans arrived in what is now Europe. The discovery of the bones at Tourville-la-Rivière, 14km south of Rouen, is exceptional because ‘this is a period with very few fossils’, according to Bruno Maureille, a palaeontologist at the National Centre for Scientific Research. He said the arm bones, dating from 200,000 years ago, in the Middle Pleistocene era, were ‘the only known example from northern Europe’.”

The first South Americans: Extreme living“After humans arrived in South America, they quickly spread into some of its most remote corners.”

How ancient DNA is rewriting human history“‘Human history is not one of stasis….’ The genetic record shows that for the past tens of thousands of years, mixed human ancestry is the rule and not the exception.” h/t hbd bibliography!

Treasure trove of ancient genomes helps recalibrate the human evolutionary clock

EmTech: Illumina Says 228,000 Human Genomes Will Be Sequenced This Year

Europe the birthplace of art? Cave art shows Indonesia has a claim“Using this method, the researchers determined that one of the hand stencils they sampled was made at least 39,900 years ago and that a painting of an animal known as a pig deer was at least 35,400 years old. In Europe, the oldest known cave painting was of a red disk found in a cave in El Castillo, Spain, that has a minimum age of 40,800 years. The earliest figurative painting, of a rhinoceros, was found in the Chauvet Cave in France; it goes back 38,827 years.”

Ancient Plague’s DNA Revived From A 1,500-Year-Old Tooth – justinian plague. – h/t debbie kennett!

New Genetic ‘Operating System’ Facilitated Evolution of ‘Bilateral’ Animals

Draft of paper about Amish“[T]he difference in mean AQ [‘amishness’] between young Amish men and their non-Amish neighbors is about 2.8 standard deviations. In the IQ world this would correspond to a group different of 42 points. In the stature world this would correspond to a height difference of about 8 inches.” – from henry harpending. see also Amish v. English from steve sailer.

Does evolutionary theory need a rethink? – no. – see also Evolution Ever Evolves from razib.

Widespread signals of convergent adaptation to high altitude in Asia and America

Evolutionary behavioral genetics“We describe the scientific enterprise at the intersection of evolutionary psychology and behavioral genetics — a field that could be termed Evolutionary Behavioral Genetics — and how modern genetic data is revolutionizing our ability to test questions in this field.”

coolest story! a MUST READ!: Finding Clues in Genes of ‘Exceptional Responders’“One study at Memorial Sloan-Kettering Cancer Center tested a drug called everolimus that is approved for kidney and breast cancer. Researchers asked if it could treat bladder cancer. Forty-five patients received the drug. Two responded. ‘The verdict was, “O.K., I guess everolimus does not work in bladder cancer,” ‘ said Dr. David Solit, the principal investigator. But then there were those two patients — one, in particular. Her cancer had spread to her abdomen. She was expected to live less than a year, and there was no treatment for her. But with everolimus, her tumors disappeared. ‘I was at a clinical meeting, and everyone was saying this drug did not work,’ Dr. Solit said. ‘I said, “It worked for her.” ‘ The investigators found out why. Her cancer had a mutation in a gene that made it dependent on a protein, mTOR, for growth. Everolimus squelches the activity of mTOR. The woman is still taking everolimus, and her cancer has not recurred.”

Are adoption gains on the g factor? A meta-analysis“g loadings and adoption gains yield a correlation of −1.” – from te nijenhuis, jongeneel-grimen, and armstrong. – h/t erwin schmidt!

The high heritability of educational achievement reflects many genetically influenced traits, not just intelligence“Genetic research has shown that intelligence makes a major contribution to the heritability of educational achievement. However, we show that other broad domains of behavior such as personality and psychopathology also account for genetic influence on GCSE scores beyond that predicted by intelligence. Together with intelligence, these domains account for 75% of the heritability of GCSE scores. These results underline the importance of genetics in educational achievement and its correlates.” – (because there’s more to hbd than just iq!)

Psychology in the 21st Century“Highly recommended: slides from a recent talk [‘The Genetic Architectures of Psychological Traits’] by James Lee.”

Replicability and Robustness of Genome-Wide-Association Studies for Behavioral Traits“Our results show that large and therefore well-powered genome-wide-association studies can identify replicable genetic associations with behavioral traits.”

Intelligence Is Critical to the Future of Humankind“A conversation with Douglas Detterman, editor of the journal Intelligence” – h/t holtz!

Crime, income, educational attainment and employment among immigrant groups in Norway and Finland – new paper from emil kirkegaard.

Is there no population genetic ‘support’ for a racial hereditarian hypothesis? – h/t jayman! who tweeted: “Racial admixture studies across the Americas all find relationship between ancestry & educational attain. as expected.”

Heavier babies do better in school“A study of children in Florida found that those who were heavier at birth scored higher on math and reading tests in the third to eighth grades.”

Practice Does Not Make Perfect“We are not all created equal where our genes and abilities are concerned.”

another MUST READ, this one from steve sailer: The Bell Curve 20 years later: A New Caste Society. – see also: ‘The Bell Curve’ Turns 20 from robert verbruggen.

Race, Income, and Test Scores – also from robert verbruggen.

The role of lactase persistence in precolonial development“It is shown through a number of specifications that country-level variation in the frequency of lactase persistence is positively and significantly related to population density in 1,500 CE; specifically, a one standard deviation increase in the frequency of lactase persistent individuals (roughly 24 percentage points) is associated with roughly a 40 % increase in precolonial population density.”

Common variants and the biological and genomic architecture of human height“The latest from the GIANT collaboration. They are also estimating ~ 10k causal variants in total, with 697 now identified at genome-wide significance…. With ~1k variants to work with, we can expect progress on the question of whether the ~1 SD group difference in height between north and south europeans is due to selection. Uniformly higher SNP frequencies in the north for variants that slightly increase height would be strong evidence of selection.” – original research paper: Defining the role of common variation in the genomic and biological architecture of adult human height

Big Chickens“More evidence that common genetic variants can produce many standard deviations of change in average phenotype.”

The Giant Mutations in the Human Genome“It turns out that there is a class of giant DNA mutations that share features of developmental disorders: They are surprisingly common, frustratingly diverse, and hard to categorize. Researchers are now discovering that these mutations play a big role in developmental delay disorders. The baffling symptoms are a consequence of the underlying genetic turmoil…. These large mutations are called ‘copy number variants’ or CNVs, and they add or subtract copies of genes.”

Genetic and nonshared environmental factors predict handgun ownership in early adulthood“Analyses revealed a stronger concordance for gun ownership among identical twins as compared to fraternal twins and univariate ACE model results indicated genetic (57%) and nonshared environmental (43%) factors explained the variance in handgun ownership.” – h/t amir sarislan!

Different tastes for different individuals – h/t jayman! who tweeted: “Genetic evidence of recent evolutionary differentiation in taste response across the world.”

From Kale To Pale Ale, A Love Of Bitter May Be In Your Genes

Here’s why you’re bouncing off the walls: the genetics of coffee consumption“Coffee consumption has now been linked to eight genetic variants.”

Do Political Attitudes and Religiosity Share a Genetic Path? – h/t avi tuschman!

Unpacking “evil”: Claiming the core of the Dark Triad

The slow and fast life histories of early birds and night owls: Their future- or present-orientation accounts for their sexually monogamous or promiscuous tendencies – uh oh. i’m a night owl!

Later school start time ‘may boost GCSE results’“Thousands of teenagers are to get an extra hour in bed in a trial to see whether later school start times can boost GCSE results. University of Oxford researchers say teenagers start functioning properly two hours later than older adults…. Prof Russell Foster, director of sleep and circadian neuroscience at Oxford University, said that getting a teenager to start their day at 07:00 is like an adult starting theirs at 05:00.”

How Iceland’s Genealogy Obsession Leads to Scientific Breakthroughs

Infidelity and kin selection: Does cheating seem as bad when it’s “all in the family”?“[C]ontrary to predictions generated by kin selection theory, participants tended to report that they would feel worse if their partners had sex with their relatives. We propose several explanations for the current findings and discuss their implications for kin selection theory.” – h/t neuroskeptic!

Anthropologists find that even among egalitarian forager-farmers, social status can impact health and happiness

Africa is on time“Using survey data on African income distributions and national accounts GDP, we estimate income distributions, poverty rates, and inequality indices for African countries for the period 1990–2011. We show that: (1) African poverty is falling rapidly…. All classes of countries, including those with disadvantageous geography and history, experience reductions in poverty. In particular, poverty fell for both landlocked as well as coastal countries; for mineral-rich as well as mineral-poor countries; for countries with favorable or with unfavorable agriculture; for countries regardless of colonial origin; and for countries with below- or above-median slave exports per capita during the African slave trade.” – h/t mugwump!

Ethnic Divisions and Production in Firms“A body of literature suggests that ethnic heterogeneity limits economic growth. This paper provides microeconometric evidence on the direct effect of ethnic divisions on productivity. In team production at a plant in Kenya, an upstream worker supplies and distributes flowers to two downstream workers who assemble them into bunches. The plant uses an essentially random rotation process to assign workers to positions, leading to three types of teams: (a) ethnically homogeneous teams, and teams in which (b) one or (c) both downstream workers belong to a tribe in rivalry with the upstream worker’s tribe. I find strong evidence that upstream workers undersupply non-coethnic downstream workers (vertical discrimination) and shift flowers from non-coethnic to coethnic downstream workers (horizontal discrimination), at the cost of lower own pay and total output.” – spite! it’s so funny. – h/t ben southwood!

Statistics in educational research – on statistical significance and p-values from andrew sabisky.

Social Network Analysis Shows Direct Evidence for Social Transmission of Tool Use in Wild Chimpanzees – h/t razib!

Reparations for Slavery? – from those who can see.

Researchers Have Identified The Origin Of The HIV/AIDS Pandemic

The Human Genome Is In Stalemate in the War Against Itself

Winter is coming: do you really need a flu jab? – from tom chivers who tweeted: “On the flu jab, and the evidence, and lack of evidence, thereof.”

(Re)Becoming Human“As the sun set over Lake Eyasi in Tanzania, nearly thirty minutes had passed since I had inserted a turkey baster into my bum and injected the feces of a Hadza man – a member of one of the last remaining hunter-gatherers tribes in the world – into the nether regions of my distal colon. I struggled to keep my legs in the air with my toes pointing towards what I thought was the faint outline of the Southern Cross rising in the evening sky. With my hands under my hips – and butt perched against a large rock for support – I peddled an imaginary upside down bicycle in the air to pass the time as I struggled to make sure my new gut ecosystem stayed put inside me. With my butt cheeks flexed and my, you know what puckered, I wondered if I had just made a terrible mistake….”

Strange Seeds on Distant Shores – a look at albion’s seed and american nations, etc., etc. – h/t jayman!

Remains of Alexander the Great’s Father Confirmed Found

Diversity: A Nature & Scientific American special issue – *facepalm*

Philosophy is a Bunch of Empty Ideas: Interview with Peter Unger – (^_^)

bonus: New particle is both matter and antimatter – phreaky physics!

bonus bonus: Physicist turns smartphones into pocket cosmic ray detectors – really cool physics!

bonus bonus bonus: A Kindle loaded with e-books is heavier than an empty one – so there!

bonus bonus bonus bonus: The Questioning of John Rykener, A Male Cross-Dressing Prostitute, 1395 (in london) – shocking!

bonus bonus bonus bonus bonus: Around the world in 400,000 years: Journey of the red fox“[T]his new research shows that the red foxes of North America and Eurasia have been almost entirely reproductively isolated from one another for roughly 400,000 years. During this time, the North American red fox evolved into a new species distinct from its Old World ancestors…. The new genetic research further suggests that the first red foxes originated in the Middle East before beginning their journey of colonization across Eurasia to Siberia, across the Bering Strait and into North America, where they eventually founded the North American population.”

bonus bonus bonus bonus bonus bonus: Cosmic Karma: Mosquitoes Have Flying, Blood-Sucking Parasite of Their Own

bonus bonus bonus bonus bonus bonus bonus: Kangaroos have three vaginas!

(note: comments do not require an email. and just to make your head asplode…. (^_^) )

Europeans drawn from three ancient “tribes”“The modern European gene pool was formed when three ancient populations mixed within the last 7,000 years, Nature journal reports. Blue-eyed, swarthy hunters mingled with brown-eyed, pale skinned farmers as the latter swept into Europe from the Near East. But another, mysterious population with Siberian affinities also contributed to the genetic landscape of the continent.” – see also: Before Slavery“From what I can see so far, it looks as the invaders killed all the LBK-descended farmers in northern Europe, or nearly so. The locals had had long trapezoidal houses clustered in small villages: the Corded Ware culture has almost no buildings at all, and a lot less agriculture. They didn’t make the EEF guys serfs and get a cut of their grain – the villages disappeared. They didn’t tax them, but then money and bureaucracy hadn’t been invented yet. Same for slavery: hadn’t been invented, probably. Judging from the mtDNA patterns, they didn’t even grab many of the nubile women. The genetic mix changes little as you move across the north European plain: if the invaders were picking up local genes as they rolled along, it should have. We used to call Corded Ware the Battle-Axe culture, but that’s too accurate for comfort.” – from greg cochran.

They weren’t wimps: how modern humans, like Neanderthals, braved the northern cold“Recent finds at Willendorf in Austria reveal that modern humans were living in cool steppe-like conditions some 43,500 years ago – and that their presence overlapped with that of Neanderthals for far longer than we thought.” – h/t mr. robert ford!

Stone Age groups made similar toolmaking breakthroughs“Different palaeolithic populations around the world might have developed a crucial toolmaking skill independently. This conclusion, based on the analysis of hundreds of artefacts from a recently excavated archaeological site in Armenia, weakens a long-held theory that Stone Age people in Eurasia learnt sophisticated techniques from migrating African tribes. The work is published in Science.”

Human paternal and maternal demographic histories: insights from high-resolution Y chromosome and mtDNA sequences“Comparisons of maternally-inherited mitochondrial DNA (mtDNA) and paternally-inherited non-recombining Y chromosome (NRY) variation have provided important insights into the impact of sex-biased processes (such as migration, residence pattern, and so on) on human genetic variation…. Our results confirm the controversial assertion that genetic differences between human populations on a global scale are bigger for the NRY than for mtDNA, although the differences are not as large as previously suggested. More importantly, we find substantial regional variation in patterns of mtDNA *versus* NRY variation.” – h/t juan fernández lópez! – see also: New analysis of human genetic history reveals female dominance – (heh. that was a nice twist on the story! (~_^) ) h/t frau katze!

23andMe mega-study on different American groups – @dienekes’. see also: The genetic ancestry of African, Latino, and European Americans across the United States.

Admixture in Latin America: Geographic Structure, Phenotypic Diversity and Self-Perception of Ancestry Based on 7,342 Individuals“We estimated individual ancestry proportions in a sample of 7,342 subjects ascertained in five countries (Brazil, Chile, Colombia, México and Perú). These individuals were also characterized for a range of physical appearance traits and for self-perception of ancestry. The geographic distribution of admixture proportions in this sample reveals extensive population structure, illustrating the continuing impact of demographic history on the genetic diversity of Latin America. Significant ancestry effects were detected for most phenotypes studied. However, ancestry generally explains only a modest proportion of total phenotypic variation. Genetically estimated and self-perceived ancestry correlate significantly, but certain physical attributes have a strong impact on self-perception and bias self-perception of ancestry relative to genetically estimated ancestry.” – see also razib: The Phenotypic and the Genotypic.

Ashkenazi Jewish population has distinctive, yet similar genomes“Post-population bottleneck, descendants of Eastern European Jews are all 30th-ish cousins…. Compared to genomes of modern Europeans—in this case, the genomes of 26 Flemish people—the Ashkenazi genomes have 47 percent more novel DNA differences per genome. These DNA variants, while novel, are population specific; sequence sharing, where two individuals have a set of the same variants, is eight percent more abundant among the Ashkenazi Jews than it is between the two populations or even among the Flemish genomes.” – h/t billare!

Why Did Civilization Lag in Africa? – from steve sailer.

Force of nature gave life its asymmetry“‘Left-handed’ electrons destroy certain organic molecules faster than their mirror versions.”

make sure not to miss jayman’s new Obesity Facts page. and give him some money, too! (^_^)

A fruitful encounter“Did the Christian doctrine of original sin create the guilt cultures of Northwest Europe? Or did the arrow of causality run the other way?” – from peter frost.

Review: G Is for Genes: The Impact of Genetics on Education and Achievement (Kathryn Asbury, Robert Plomin) – from emil kirkegaard.

The hereditarian hypothesis almost certainly true“Surely, there are huge benefits to being the first author to publish a study that almost conclusively disproves the genetic model for AA’s. Researchers with access to the data have a strong incitement to publish such a study. If the data supports the view, they have all the necessary means too. Since they haven’t published it, we can hence infer that the data does not support the politically favorable non-genetic conclusion, but instead the genetic model.” – also from emil kirkegaard.

Cognitive ability and party identity in the United States“[I]ndividuals who identify as Republican have slightly higher verbal intelligence than those who identify as Democrat…. [H]igher intelligence among classically liberal Republicans compensates for lower intelligence among socially conservative Republicans.” – the results suggest. – h/t stuart ritchie!

Lighter-skinned minorities are more likely to support Republicans

A study of the performance of Egyptian college students on the Advanced Progressive Matrices“The Egyptian raw scores were transformed to British IQ equivalents using the published 1992 British norms for the APM, on which the sample obtained a British IQ of 89.5. Science students obtained a significantly higher average mean score than arts students by 7.5 IQ points. Male students obtained a non-significantly higher average IQ than female students 1.2 IQ points. Male students had greater variability than the female students.” – h/t erwin schmidt!

The Available Pool – ed realist goes all voldemort on us. again.

Epigenetics, the Glory and the Hype“Epigenetics is real. But it doesn’t change everything. That needs to be said, because people seem to get the impression that everything is changed.” – from razib.

Human preferences for sexually dimorphic faces may be evolutionarily novel [pdf] – “A large literature proposes that preferences for exaggerated sex typicality in human faces (masculinity/femininity) reflect a long evolutionary history of sexual and social selection. This proposal implies that dimorphism was important to judgments of attractiveness and personality in ancestral environments. It is difficult to evaluate, however, because most available data come from large-scale, industrialized, urban populations. Here, we report the results for 12 populations with very diverse levels of economic development. Surprisingly, preferences for exaggerated sex-specific traits are only found in the novel, highly developed environments. Similarly, perceptions that masculine males look aggressive increase strongly with development and, specifically, urbanization.” – h/t jayman!

Do your genes skew how you taste alcohol?“A new study shows that how people perceive and taste alcohol varies as a result of genetics. The scientists focused on three chemosensory genes—two bitter-taste receptor genes known as TAS2R13 and TAS2R38 and a burn receptor gene, TRPV1. The research is the first to consider whether variation in the burn receptor gene might influence alcohol sensations, which has not previously been linked to alcohol consumption.” – alcohol tastes gooooood! (~_^) – h/t phillip melton!

Parent–Offspring Similarity for Drinking: A Longitudinal Adoption Study [pdf] – “Findings imply that genetic influences on drinking behavior increase with age while shared family environment influences decline, especially during the transition from late-adolescence to early adulthood.” – h/t emil kirkegaard!

Violent Video Games and Real-World Violence: Rhetoric Versus Data“Contrary to the claims that violent video games are linked to aggressive assaults and homicides, no evidence was found to suggest that this medium was positively related to real-world violence in the United States. Unexpectedly, many of the results were suggestive of a decrease in violent crime in response to violent video games. Possible explanations for these unforeseen findings are discussed and researchers are cautioned about generalizing the results from laboratory and correlational studies to severe forms of violent behavior.” – h/t mugwump! who tweeted some of the tables here, here, and here.

The Objective Morality Delusion“Atheists often scorn those who believe in the God Delusion. The faithful, in turn, scorn those atheists who believe in the Objective Morality Delusion. The scorn is understandable in both cases, but I give the nod to the faithful on this one….” – from helian.

Paradox of nationalism“Nationalism as we know it arose in modern times in Europe. Other countries outside Europe just don’t seem to have the same thing, although there are exceptions, such as Japan, or maybe Turkey. And in fact, nationalism was at one time considered a part of liberalism – which is another European invention…. Other countries that don’t have the same history as Europe seem unlikely to develop that kind of nationalism. Think of Iraq, Syria, most African countries, even China: they are more given to clannishness than patriotism.” – from mr. mangan, esq.

Plant breeding, not working slaves harder, drove cotton efficiency gains in the US South – from pseudoerasmus.

Confusion Over the Biological Reality of the Human Races“[O]ne can see clearly why Wade’s argument is not racist: at the core of his argument is his claim that the tribalism of racial ethnocentrism belongs to an ancient stage of human evolution that has to be overcome to move into modern states and inclusive institutions (see Wade, 136, 173-82, 196-97).” – larry arnhart on A Troublesome Inheritance.

Yes, it’s official, men are from Mars and women from Venus, and here’s the science to prove it“In his fascinating new book the developmental biologist Lewis Wolpert argues that there is actually hard science behind many of our stereotypical gender roles.” – h/t claire lehmann!

The Woman’s Heart Attack“[M]en more typically have ‘crushing’ pain; women, nausea. That women are likelier to have early warning signs, such as unaccustomed fatigue or insomnia (unaccustomed: That’s the key word here). That we are likelier — this spooked me and kept me, for months, glued to calendars — to die within a year of a heart attack. That our symptoms can be so varied and nuanced that we feel no fear, seek no help, and possibly die — which may be why, although more men have heart attacks, a greater percentage of women die of them.”

The Evolution of Culturally-Variable Sex Differences: Men and Women Are Not Always Different, but When They Are…It Appears *Not* to Result from Patriarchy or Sex Role Socialization“[E]vidence is marshaled across 21 data sources that directly challenge this foundational assumption of social role theory. Empirically, sex differences in most psychological traits — in personality, sexuality, attitudes, emotions, behaviors, and cognitive abilities — are conspicuously *larger* in cultures with more egalitarian sex role socialization and greater sociopolitical gender equity. Even sex differences in many physical traits such as height, obesity, and blood pressure are larger in cultures with more egalitarian sex role socialization and greater sociopolitical gender equity.”

School Performance After Preterm Birth“An increased risk of poor school performance for children born preterm has been shown in many studies, but whether this increase is attributable to preterm birth per se or to other factors associated with preterm birth has not been resolved…. Preterm birth was strongly and negatively correlated with school performance. The distribution of school grades for children born at 31-33 weeks was on average 3.85 (95% confidence interval = -4.36 to -3.35) centiles lower than for children born at 40 weeks. For births at 22-24 weeks, the corresponding figure was -23.15 (-30.32 to -15.97). When taking confounders into account, the association remained. When restricting the analysis to siblings, however, the association between school performance and preterm birth after week 30 vanished completely, whereas it remained, less pronounced, for preterm birth before 30 weeks of gestation. Our study suggests that the association between school performance and preterm birth after 30 gestational weeks is attributable to factors other than preterm birth per se.”

Are Neighborhood Health Associations Causal? A 10-Year Prospective Cohort Study With Repeated Measurements – h/t amir sariaslan! who tweeted: “Neighborhoods did not cause health outcomes in Australian large longitudinal within-individual study over 10 years.”

Seat of Selflessness Found in Brains of Extreme Altruists“In this case researchers chose to study people who donated a kidney to a complete stranger. They found that not only are extreme altruists’ brains different from a normal person’s, they’re basically the opposite of a psychopath’s in one key way – indicating that a specific brain region may play an important role in people’s ability to care for one another.” – n=39, but it’s a start!

Can the Game of Thrones option save the UK?“The situation now resembles the Union of Crowns from 1603-1707 when Scotland had its own parliament but was still under the king in Westminster, and Cameron is behaving like Charles I: making promises to his northern kingdom that affect the southern one, without regards to how the southerners feel. Just as in 1640, the greatest protests are coming from the east of England, once the stronghold of Puritanism and the parliamentary rebels and now the Ukip heartland.” – from ed west.

God, Darwin and My College Biology Class“[A] third consequence of evolutionary insights: a powerful critique of theodicy, the scholarly effort to reconcile belief in an omnipresent, omni-benevolent God with the fact of unmerited suffering. Theological answers range from claiming that suffering provides the option of free will to announcing (as in the Book of Job) that God is so great and we so insignificant that we have no right to ask. But just a smidgen of biological insight makes it clear that, although the natural world can be marvelous, it is also filled with ethical horrors: predation, parasitism, fratricide, infanticide, disease, pain, old age and death — and that suffering (like joy) is built into the nature of things. The more we know of evolution, the more unavoidable is the conclusion that living things, including human beings, are produced by a natural, totally amoral process, with no indication of a benevolent, controlling creator.” – david barash, pessimist(?).

Incest a “fundamental right” says German committee says“Anti-incest laws in Germany could be scrapped after a government-backed group said relationships between brothers and sisters should be legal.” – those wacky germans! h/t anatoly!

Radicalised Muslims in UK more likely to be born in Britain, rich and depressed“Young British Muslims whose families have lived in the UK for generations are more at risk of radicalisation than recent migrants to Britain, according to new research which reveals the common characteristics of those most vulnerable to recruitment by terrorists.” – we’ve seen that pattern before. h/t ed west!

Millions of Old Tyres are Dumped Near Empty Apartment Blocks in Spanish Ghost Town – you HAVE to see the photos! h/t ian geldard!

bonus: Skin coloring of rhesus macaque monkeys linked to breeding success, new study shows

bonus bonus: Fantastically Wrong: Europe’s Insane History of Putting Animals on Trial and Executing Them – h/t kyle hill!

bonus bonus bonus: Belgium to build beer pipeline under Bruges – those wacky belgians!

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

oops! it happened again. =/

Deletion of Any Single Gene Provokes Mutations Elsewhere in the Genome“Johns Hopkins researchers report that the deletion of any single gene in yeast cells puts pressure on the organism’s genome to compensate, leading to a mutation in another gene…. ‘The deletion of any given gene usually results in one, or sometimes two, specific genes being “warped” in response….'”

Self-heal like Wolverine? Gene discovery might hold clues“In a discovery by a Harvard researcher, a reactivated gene found in embryos helps mice regrow clipped parts of their ears and toes. Could the ‘fountain of youth’ gene hold promise for humans too?” – i want one! – h/t mike anissimov!

Gene Variants Up CKD [chronic kidney disease] Risk in Blacks“A high-risk genetic variant conferred a significantly increased risk of progressive kidney disease in African Americans, at least partly explaining a racial disparity in end-stage renal disease (ESRD), investigators reported here. Analysis of black and white patients in another trial — half with diabetes — showed kidney function declined almost three times as fast in blacks with the high-risk APOL1 profile as compared with whites….”

Genetic clue to high heart risk of black Americans“The gene that produces the protein [PC-TP which activates a clotting factor called PAR4] is four times more active in the platelets of black Americans than it is in white Americans.” – h/t hbd bibliography!

Europeans and South Asians share by descent SLC24A5 light skin allele“‘We date the coalescence of the light skin associated allele at 22–28 KYA. Both our sequence and genome-wide genotype data confirm that this gene has been a target for positive selection among Europeans. However, the latter also shows additional evidence of selection in populations of the Middle East, Central Asia, Pakistan and North India but not in South India.'” – @dienekes’.

The ancestors with no descendants“On the eve of the last ice age, Siberia was home to a people who were related to modern Europeans and Amerindians but not to modern native Siberians. So concludes an analysis of DNA from the remains of a boy who lived 24,000 years ago at Mal’ta near Lake Baikal, Siberia…. [T]he Mal’ta people probably looked very much like native Indians with a more European skull shape, perhaps like the Ainu of northern Japan or the Kennewick humans of North America.”

Political colour is half genetic“New study provides definitive evidence that heritability plays a significant role in the formation of political ideology, regardless of how ideology is measured, the time period or population sampled.” – @ScienceNordic.com – the photo caption is pretty funny/telling: “Imagine if scientists could identify the ‘liberal’ genes and genetically modify babies so that they all voted liberal when they grow up? Brave new world?” (and the first comment is priceless!) – h/t ray sawhill!

It’s not just conservatives that support discrimination against their ideological foes“‘Discrimination by liberals has received scant attention in the literature, despite this being a prevalent concern in conservative rhetoric. By only examining conservative biases, social scientists fail to fully explore political intolerance in America. This research helps fill that gap….’ When opposing groups were seen as violating core values, liberals were just as likely to support discrimination against same-sex marriage opponents, religious fundamentalists, Tea Party protestors, and prolife people as were conservatives against feminists, atheists, leftist protestors, and prochoice people.”

Politics Has an Odor“[C]onservatives are significantly more likely than liberals to detect [bitter tasting] PTC [phenylthiocarbamide].” – h/t jayman!

Study: Your brain sees things you don’t“Our brains perceive objects in everyday life of which we may never be aware, a study finds, challenging currently accepted models about how the brain processes visual information.”

New evidence on the biological basis of highly impulsive and aggressive behaviors“Physical and chemical changes in the brain during development can potentially play a role in some delinquent and deviant behaviors.”

Root of maths genius sought“Entrepreneur’s ‘Project Einstein’ taps 400 top academics for their DNA.”

Has a 15-year-old explained the Flynn Effect? – on elijah amstrong and michael woodley’s newly published paper! – from steve sailer.

Is young Woodley down for the count? – never! (^_^) – from dr. james thompson.

Religions of the American Nations“[T]hese differences [regional cultural and political divisions in america] stem from the *genetic* differences in the descendants of these initial settlers (suffused with the genes of subsequent immigrants, particularly in the old North).” – from jayman.

In Hookups, Inequality Still Reigns“[A] study of 24,000 students at 21 colleges over five years found that about 40 percent of women had an orgasm during their last hookup involving intercourse, while 80 percent of men did.” – h/t john durant!

The Co-Villains Behind Obesity’s Rise“Not everyone, however, has the same gut bacteria. And, interestingly, the composition of this bacteria correlates with obesity…. [T]he bacteria study found that the ‘obese gut bacteria’ had an impact only when the mice were fed diets heavy in saturated fats.” – h/t jayman!

Rich Chinese Couples Turning To American Surrogates For Easier Immigration And ‘Designer Babies’“Another factor that has some Chinese couples choosing American surrogates is a desire for ‘designer babies.’ While most couples still use their own eggs and sperm, making the child biologically theirs, Reuters reports that more and more people are open to egg donation, to get what some clients believe are smarter and better-looking children. ‘Lots of clients that are Chinese do use tall, blond donors,’ Jennifer Garcia, who works at Extraordinary Conception in California, where 40 percent of clients are Chinese, said in the report.” – h/t mark krikorian!

CRISPR gene therapy: Scientists call for more public debate around breakthrough technique“‘I’m sure there will be some concern about the possibility that the technology could be used for “enhancement” rather than repair, veering from medicine towards eugenics,’ [professor wells] warned.” – oh noes! not “enhancement”! *swoon!* h/t anatoly!

Should state education be abolished?“New York City adopting Finland’s education system is not going to make New York like Finland…. In the game of life the dice are loaded and trying to make teachers responsible for making life fair is deluded and unfair to them….” – from ed west.

Shaker Heights – from greg cochran.

John Derbyshire’s Modest Proposal On Politics and Intelligence“And the too-dumb-to-vote segment is only a part of the problem we conservatives have with universal suffrage. Here’s another part: too *smart* to vote…. At the very highest levels of intelligence, the correlation between IQ and sensible political opinions may actually be *inverse*: the more brilliant you are, the dumber your politics. Albert Einstein thought well of Stalin; Hitlerism got its first mass following in the highly-selective German universities.”

Amid austerity and debt, Denmark remains happiest nation“The second pillar of happiness is a high level of trust between people, even for a stranger on the street….” – crazy danes! (~_^)

Introducing the Mongol Project“‘I will now tell you all about the Tartars and how they acquired their empire and spread throughout the world.'” – excellent! – from t.greer.

Early uses of chili peppers in Mexico“Chili peppers may have been used to make spicy beverages thousands of years ago in Mexico….”

Case of Insect Interruptus Yields a Rare Fossil Find“[T]he oldest fossil of two insects copulating.” – 165 million years old!

This Is How Much Money You’ll Make Based on Your Personality – d*mn. =/

bonus: Another Word for “Holocaust”“[O]ne would have to be smoking banana peels dipped in formaldehyde and sprinkled with PCP to assert that both events [the holocaust and the holodomor] receive a similar amount of attention in Western media and academia.” – from jim goad. of course.

bonus bonus: Swedish cinemas launch feminist movie rating – hahahahahaha!!! heh. wait. (*hbd chick wipes tears from eyes*) heh. – “To get an ‘A’ rating, a movie must pass the so-called Bechdel test, which means it must have at least two named female characters who talk to each other about something other than a man….” – hahahahahaha!! – “The entire ‘Lord of the Rings’ trilogy, all ‘Star Wars’ movies, ‘The Social Network,’ ‘Pulp Fiction’ and all but one of the ‘Harry Potter’ movies fail this test,” – so, except for The Social Network, all of my faves. this is going to be a REALLY handy movie rating system. whatever movies they FAIL, i will go see! (^_^)

bonus bonus bonus: Strange Doings on the Sun“Sunspots, Which Can Harm Electronics on Earth, Are Half the Number Expected” – ruh roh.

bonus bonus bonus bonus: Large magma reservoir gets bigger – ruh roh.

bonus bonus bonus bonus bonus: This amazing fruit fly evolved to have pictures of ants on its wings – srsly! – h/t jayman!

(note: comments do not require an email. rupee – first dog to climb mt. everest. woof!)

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!)

(sorry. the dog ate my sunday linkfest….)

And Yet Another Tale of Two Maps – from jayman.

Why are girls and boys maturing earlier? – from peter frost.

When Did Humans Come to the Americas?

Large study shows substance abuse rates higher in teenagers with ADHD“When the adolescents were an average of 15 years old, 35 percent of those with ADHD histories reported using one or more substances, as compared to only 20 percent of teens without ADHD histories.”

Tribal societies and war – from mangan.

Crime and Twins – from dienekes.

HVGIQ: Cayman Islands – from jason malloy.

Evil Genes and the Long Dark Tea Time of the Soul – @bad data, bad!

Digging Deep in the DNA“‘I think I’m one of the few people,’ she said, ‘who have taken the rectal temperature of a grizzly bear.'”

Men are from Mars Earth, women are from Venus Earth“That men and women approach their social world similarly does not imply that there are no differences in average scores between the sexes. Average differences do exist, write the authors.” – yes, average differences do exist.

Exercise linked with reduced prostate cancer risk in Caucasians but not African-Americans“Studies have also revealed that African-American men have an increased risk of developing prostate cancer and of dying from the disease compared with Caucasians.”

Gene today, gone tomorrow: Genes for autism and schizophrenia only active in developing brains“Genes linked to autism and schizophrenia are only switched on during the early stages of brain development, according to a study in mice led by researchers at the University of Oxford.” – curioser and curioser….

The Lab Accident That Led to the Discovery of Supertasters“A cloud of chemicals. One researcher detects a smell. The other does not. What happens next? Science.”

So THAT’s why women’s feet and hands are always cold! Why they are slaves to their hormones

On Genteels – @bloody shovel.

Oral Mystery: Are Agriculture and Rats Responsible for Tooth Decay?“Tooth decay is a relatively modern problem. The bacteria feasting on your teeth might have originated in the mouth of a rodent, and found their way to our teeth, thanks to agriculture.”

bonus: ‘Google for spies’ draws ire from rights groups

bonus bonus: ‘It’s a boy!’ Monkey midwife delivers baby

bonus bonus bonus: What Are Dogs Saying When They Bark? [Excerpt]“Experiments have now shown that dogs use different barks and growls to communicate different things.” – see also: Your dog really does understand you… They’re more likely to steal food if they think you can’t see, research reveals.

bonus bonus bonus bonus: Pigeons Get a New Look“Pigeons, a Darwin favorite, carry new clues to evolution.”

bonus bonus bonus bonus bonus: Do plants ‘veto’ bad genes?“Latest evidence fails to quell doubt about whether plants can access “ancestral” genes outside their parents'”

bonus bonus bonus bonus bonus bonus: Face-to-face with the earliest ancestor of all placental mammals

bonus bonus bonus bonus bonus bonus bonus: Penicillin Mold Can Reproduce Sexually, Which Could Lead to Better Antibiotics“Penicillin-producing fungus, previously thought to be asexual, has a sexual side. The finding is the latest in a kind of sexual revolution in fungal genetics.”

bonus bonus bonus bonus bonus bonus bonus bonus: Fast Food Robot Builds the Perfect Burger – won’t need mexicans for flipping burgers anymore.

(note: comments do not require an email. two of earth’s moons in one picture.)

Growing your own merchant class“To explain the high incidence of Tay-Sachs among Ashkenazi Jews, some authors have invoked heterozygote advantage…. A similar situation may have developed in eastern Quebec, where the relative scarcity of British and American merchants made it easier for French Canadians to enter occupations that required literacy, numeracy, and future time orientation.” — cool! from peter frost.

A slower mutation rate has implications… and here they are“Researchers have long used an autosomal mutation rate for humans that was based on a calibration of the split between humans and chimps…. More recently, a variety of studies using a variety of techniques (latest one from ASHG 2012) all came up with a rate that is about half that value.” — important stuff from dienekes.

Learning faster with neurodegenerative disease“People who bear the genetic mutation for Huntington’s disease learn faster than healthy people. The more pronounced the mutation was, the more quickly they learned.”

Eating disorders and the extreme female brain – @the breviary.

Were you Assimilable? – superb post from m.g. over @those who can see!

How early social deprivation impairs long-term cognitive function“Social isolation during early life prevents the cells that make up the brain’s white matter from maturing and producing the right amount of myelin….”

Soapy taste of coriander linked to genetic variants“Dislike of herb traced to genes encoding odour and taste receptors.”

Looking at you: Face genes identified“5 genes have been found to determine human facial shapes.” — see also Police could create image of suspect’s face from DNA.

The Return of the Ugly, Racist Pseudoscientist with a Small Penis – kanazawa’s back. (~_^) via steve sailer.

bonus: GM corn loses its edge against pests“Corn rootworms in the US may have developed resistance to a protective chemical made by a genetically modified corn.”

bonus bonus: Giant viruses coexisted with the cellular ancestors and represent a distinct supergroup along with superkingdoms Archaea, Bacteria and Eukarya

bonus bonus bonus: After Egyptian Dictatorship Comes Epidemic Harassment Of Women“Progress is not inevitable….” — no. no it’s not. from parapundit.

bonus bonus bonus bonus: Greed and Debt: The True Story of Mitt Romney and Bain Capital — from matt taibbi. via anatoly.

bonus bonus bonus bonus bonus: In China We (Don’t) Trust

(note: comments do not require an email. don’t forget! — death to america!)

Brains of addicts are inherently abnormal: study“Drug addicts have inherited abnormalities in some parts of the brain which interfere with impulse control, said a British study published in the United States on Thursday…. Scientists at the University of Cambridge compared the brains of addicts to their non-addicted siblings as well as to healthy, unrelated volunteers and found that the siblings shared many of the same weaknesses in their brains. That indicates that the brain vulnerabilities had a family origin….”

Sex-specific behaviors traced to hormone-controlled genes in the brain“The new evidence shows that the sex hormones – testosterone, estrogen, and progesterone – act in a key region of the brain, switching certain genes on and others off. ‘What this means is that complex behaviors like male mating or maternal care in mice can be deconstructed at the genetic level.'”

Gene related to fat preferences in humans found“A preference for fatty foods has a genetic basis, according to researchers, who discovered that people with certain forms of the CD36 gene [the AA form] may like high-fat foods more than those who have other forms of this gene.” – i betcha i don’t have that allele. fat. yuck! (^_^)

Jonathan Haidt Decodes the Tribal Psychology of Politics“Humans are 90-percent chimp, but also 10-percent bee—evolved to bind together for the good of the hive.” – bzzz. (^_^)

Shocker: Women’s rights do not bloom in Arab Spring – from mr. a. epigone.

DNA Turning Human Story Into a Tell-All“[F]aster and cheaper genetic sequencing technology, is helping scientists draw a surprisingly complex new picture of human origins. The new view is fast supplanting the traditional idea that modern humans triumphantly marched out of Africa about 50,000 years ago, replacing all other types that had gone before. Instead, the genetic analysis shows, modern humans encountered and bred with at least two groups of ancient humans in relatively recent times: the Neanderthals, who lived in Europe and Asia, dying out roughly 30,000 years ago, and a mysterious group known as the Denisovans, who lived in Asia and most likely vanished around the same time.”

Y-chromosome admixture in self-identified Australian Aboriginals“In total, ∼70% of Y chromosomes in the Aboriginal database could be classed as non-indigenous, with only 169 (129 unique haplotypes) or 22% of the total being associated with haplogroups denoting Aboriginal ancestry….” – @dienekes’ blog.

What’s Wrong With the Teenage Mind?“Children today reach puberty earlier and adulthood later. The result: A lot of teenage weirdness.”

Strength by outbreeding“‘US history has many virtues, among which is the fact that the US population is reconstituted every generation through a roughly 10 percent admixture by external immigration from throughout the world.'” – that’s a quote from robert trivers’ new book @evolving economics.

Castaway Lizards Offer New Look at Evolutionary Processes“Differences caused by ‘founder effect’ persist when populations adapt to new environments”

bonus: Quiet, Please: Unleashing ‘The Power Of Introverts’ – this might be the one and only time i’ll link to npr. ever. (~_^)

bonus bonus: ruh roh.

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