anglo-saxon burials and genetics in england

here’s a map (on the left) of anglo-saxon burial sites of the 5th to 7th centuries from “Anglo-Saxon immigration and ethnogenesis” compared to the distribution of the eastern, central, and southern english genetic cluster (red squares on map to right) from leslie et al. who found between 10-40% of the ancestry of those english to be anglo-saxon:

harcke - anglo-saxon burial sites 5th to 7th-8th centuries

that is all! (^_^)

previously: free cornwall now!

(note: comments do not require an email. anglo-saxon burial: lady and her cow.)

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linkfest – 02/23/15

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.)

linkfest – 03/21/14

holy toledo! two week’s worth of links! happy friday! (^_^)

John Derbyshire On Nicholas Wade’s A TROUBLESOME INHERITANCE – A Small, But Significant, Step For Race Realism“Wade raises high the banner of race realism and charges head-on into the massed ranks of the SSSM. He states his major premise up front, on page two: ‘New analyses of the human genome have established that human evolution has been recent, copious, and regional.’ Those last four words are repeated at intervals throughout the narrative. They are, as it were, the keynote of the book; Wade returns to them many times to anchor his observations — and some speculations — on the history and development of human societies.” (my emphasis there – h.chick)

henry harpending on science“[T]his is perhaps at the heart of the slander of the so called hbd-crew that circulates. Most of us are really interested, in our hearts, in theory and models. This is the way that most of science works…. You state somewhere that the hbd crew is obsessed with IQ. Seems so, but wait! IQ is literally the only thing that can be reliably measured of a whole constellation of interesting traits. It really does work in the sense of telling one whom to hire or whom to admit to graduate school. You also speak of what we ‘believe’ but the whole fun of science is falsifying hypotheses, not believing them. I would give my eye teeth (if I had them) to come up with something besides IQ to look at.” (my emphasis again – h.chick)

Digging For Gold: Study Says Your Race Determines Your Earwax Scent – h/t hbd bibliography!

Austronesians Out of the Cauldron“…the emergence of Austronesians. Linguistics and archaeology already were rather clear on the pattern of expansion, and when. But now an ancient DNA remain from off the coast of Fujian dated to ~8,000 years ago solidifies in totality the where and when. This is not an argument anymore.” – from razib.

New Diet, Sexual Attraction May Have Spurred Europeans’ Lighter Skin“[A] new study of ancient DNA concludes that European skin color has continued to change over the past 5000 years, suggesting that additional factors, including diet and sexual attraction, may also be at play.” – see also: Natural selection has altered the appearance of Europeans over the past 5,000 years.

It made their brown eyes blue…“A recent report in PNAS shows the inhabitants of the Ukraine and its environs had much darker hair, skin, and eyes back in the Bronze Age and earlier.” – from greg cochran.

Did Europeans become white in historic times? – from peter frost.

Pause Is Seen in a Continent’s Peopling“Using a new method for exploring ancient relationships among languages, linguists have found evidence further illuminating the peopling of North America about 14,000 years ago. Their findings follow a recent proposal that the ancestors of Native Americans were marooned for some 15,000 years on a now sunken plain before they reached North America.”

The place of the Armenian language in the Indo-European family“A very interesting talk at the Library of Congress making a good case for a Greek-Phrygian-Armenian clade within the Indo-European family.” – from dienekes.

One Million Brits ‘Descended from Vikings” DNA Study Claims“Around one million Britons, or one in 33 men across the UK, can claim direct descent from Vikings, according to a new DNA study. Men from the far north of Scotland were most likely to provide a direct match with almost a third (29.2%) of the men from the Shetland Islands testing positive for Viking blood.” – h/t ed west!

Genetic Architectures“The point is that the genetic architecture of a quantitative trait does not have to be the same in different populations of the same species. For example, I have the impression that height is not as highly polygenic in Pygmies as it is most other human populations. There’s a particular region on chromosome 3 that seems to influence height- you don’t see such a concentration in Europeans.” – another from greg cochran.

Molecular genetic contributions to socioeconomic status and intelligence – h/t billaire! who tweeted: “21% of the var. in education level, 18% of SES, 29% of cognitive ability explained by COMMON SNPs in Scottish sample.”

Study finds genetic link between height and IQ“A team of researchers at Edinburgh University in Scotland has found a correlation between genes associated with height and those associated with intelligence. In their paper published in the journal Behavior Genetics, the group describes how they studied the DNA of 6,815 unrelated people and discovered what they describe as a direct correlation between height and intelligence—taller people are smarter, they say.”

HVGIQ: Puerto Rico – from jason malloy.

Population differences in intellectual capacity: a new polygenic analysis – peter frost on davide piffer’s work.

Evidence for the general factor of personality as social-effectiveness

Intelligent people are more likely to trust others“Intelligent people are more likely to trust others, while those who score lower on measures of intelligence are less likely to do so, says a new study. Researchers based their finding on an analysis of the General Social Survey, a nationally representative public opinion survey carried out in the United States every one to two years.” – h/t mr. mangan, esq!

Openness to experience and aesthetic chills: Links to heart rate sympathetic activity“These results suggest links between openness to experience and sympathetic nervous system activity explaining, at least in part, relationships of openness to such traits as aesthetic chills.” – h/t stuart ritchie!

Psychological refractory period in introverts and extraverts“Evidence for faster stimulus analysis in extraverts compared to introverts.”

‘Free to Be’ Boys and Girls: 40 Years After the Failed Gender Revolution“1974’s ‘Free to Be…You and Me’ feels like an eternity ago. And, amazingly, kids and adults have yet to morph into mutually respectful, non-gendered human persons.” – from christina hoff sommers.

Personality Regions: The Friendly Midwest, the Left Coast and the Wicked (Possibly Irish) Witch of the Northeast – from staffan.

Want Success? Choose the Right Parents“Gregory Clark’s startling new book, ‘The Son Also Rises,’ asks you to rethink everything you thought you knew about social mobility. His research, if it’s correct, isn’t good news. It says that socio-economic status is mostly a matter of nature not nurture, and suggests that trying to help the disadvantaged move up won’t make much difference.” – h/t alice teller! – see also: Social mobility: Have and have not“Mr Clark follows his logic to an unexpectedly egalitarian end. Redistribution is sensible, he argues, not in order to boost mobility but because mobility is intractably low. The cream will rise regardless, and so paying extraordinary salaries to capable workers is unnecessary. If high rates of mobility are used to excuse or justify inequality, he suggests, then the reality of low mobility implies something quite different: t hat great inequality serves little purpose and redistributing income from the rich to the poor might raise overall welfare at little economic cost. This makes for uncomfortable reading for those of all ideological persuasions.”

Why HBD“As I have tired to explain in my earlier post, Environmental Hereditarianism, the behavioral and physical traits of people are environmentally context-dependent. The broad environmental context regulates the expression of the genes. There is *not* a dichotomy between genes and ‘environment’. Nor could there be one – we are always ‘with’ both. The broad environment includes geography, climate, technology, and prevailing social landscape (otherwise known as ‘culture’). When the social-technological-geographic landscape changes, you can have broad behavioral change all without genetic change. This explains secular changes that occur too quickly to be a result of evolution, such as the sexual revolution, the modern rise in irreligiosity, the increase in the obesity rate, etc.” – from jayman.

Key connection“Biologists zero in on role of plasticity in evolution. For more than a century, scientists have suggested that the best way to settle the debate about how phenotypic plasticity — the way an organism changes in response to environment — may be connected to evolution would be to identify a single mechanism that controls both. Harvard researchers say they have discovered just such a mechanism in insulin signaling in fruit flies. Cassandra Extavour, an associate professor of organismic and evolutionary biology, and grad student Delbert André Green II were able to show that a single molecular pathway plays a role in both heritable changes in the flies’ number of ovarioles — egg-producing compartments in the ovaries — and in how they react to their environments by shutting down some ovarioles. The study is described in a paper published this month in the Proceedings of the Royal Society B. ‘This is the first example, to my knowledge, that shows this link — between heritability and plasticity — being controlled by the same mechanism,’ Extavour said. ‘What we’ve done with this paper is show that an important trait that controls how many offspring a fruit fly will have exhibits both heritable variation and phenotypic plasticity, and that both are controlled by insulin signaling.'” – h/t steven pinker!

Morality and the Lament of the Liberal Atheists“Moral relativism is the ground state of living things. It doesn’t work for a social species like ours. If every one of us tried to monopolize all the available resources within his grasp at the cost of everyone else, the chances that any given individual would survive and reproduce would be drastically reduced. Therefore, morality. It exists because, from an evolutionary perspective, it works. It will continue to function just as it always has, even if 100,000 philosophers shout at the top of their lungs that it’s irrational. Of course it is, but it doesn’t matter. We will continue to perceive the good and evil that seem so real to our imaginations as absolutes. It is our nature to do so….” – from helian

coolest. story. ever. (in the past two weeks.): The Woman Who Can Will Herself Out Of Her Body – h/t keith laws!

Hypothesis on Why Northwest Europe Began Outbreeding“It could just be coincidence that the outbreeding areas that coincide with other positive hajnal line traits were also lands conquered by men from tribes with the traditions of Germanic kingship. These kings were illiterate barbarians seeking legitimacy and thinking long term at the security of their line ruling…. This is a hypothesis, but the position these rulers were in was one of new conquerors in foreign lands. They needed to create and encourage loyalty in the natives as well as find a way to secure their individual line as king in a manner that was different from what their people, the conquerors, were accustomed to. The Church, an institution eager for power in a new area as well, offered an opportunity to import a political infrastructure and change the social make up of their new lands. Even moreso in England than the rest of core Europe, the Church and the elite’s motivations and goals overlapped perfectly. Christianity was new to them and new to the Britains, but as conversions mounted, it was a shared trait amongst them all. That shared identity was the warrior-chiefs’ way to have rule and kingship legitimized. That shared identity made the natives and newcomers men of Kent or East Anglia, later England, and not of the clan.” – good stuff from son of brock landers!

Rise of the West and the Hajnal line – from mr. mangan, esq.

The Low Fertility Of Urban Liberals Is A Feature Not A Bug – from heartiste.

The Achilles’ Heel of Northern Europeans: Outbreeding? – from alfred clark.

The Medieval Mind“The medieval character was not just about poisoning rivals and raping their daughters. That picture misses the raw and unquestioned nationalism, the impulsivity, the superstition, the childishness (in Barbara Tuchmann’s words), the present time-orientation.” – from elijah.

On Digit Ratio and its Implications – from sisyphean the mad contrarian.

psychO – from the awesome epigone. linking to this mostly for the pictures – awwww! (^_^)

The genes that mean you have a good ear for music“Musical aptitude may be partly down to genes that determine the architecture of the inner ear.” – h/t simon makin! – alternatively: you, too, can have perfect pitch! (~_^)

The Origin of Ideology“Are left and right a feature (or bug) of evolution?” – review of a couple of books.

Do Women’s Mate Preferences Change Across the Ovulatory Cycle? A Meta-Analytic Review – answer: yes. – see also: Intersexual conflict across women’s ovulatory cycle“Results indicate that (a) men are particularly self-assertive toward partners when their partners are fertile; (b) similarly, women are especially self-assertive toward partners when they are fertile; (c) women report engaging in more behaviors that resist male vigilance and mate-guarding when they are fertile, especially in ways that are unobservable to male partners; (d) these effects are especially strong when women themselves report greater attraction to men other than partners when they are fertile, compared to the luteal phase.” – h/t robert burriss!

Study finds less cooperation among women than among men where hierarchy is involved“‘When I studied young children, I noticed that boys were typically interacting in groups, and girls tended to focus on one-on-one relationships,’ said Benenson, the study’s lead author, who explored similar questions in her book Warriors and Worriers. ‘There is even evidence that these differences exist in six-month-olds – but you can see it with the naked eye by about five or six years old, where boys form these large, loose groups, and girls tend to pair off into more intense, close friendships.’ What makes those differences particularly provocative, Benenson said, is that chimpanzees organize their relationships in nearly identical ways. ‘Chimpanzee males usually have another individual they’re very close with, and they may constantly battle for dominance, but they also have a larger, loose group of allies,’ Benenson said. ‘When it comes to defeating other groups, everybody bands together. I would argue that females don’t have that biological inclination, and they don’t have the practice.'”

The Reason Early Humans May Have Practiced Infant Cannibalism – mmmmmmm! – h/t diana fleischman!

Personality Traits and Body Mass Index in a Korean Population“Compared with the normal weight groups, overweight and obese men scored higher on openness to experience and lower on conscientiousness. Overweight and obese women scored lower on neuroticism and openness to experience and higher on agreeableness. Extraversion was positively associated with BMI in men (β = 0.032, P<0.05). BMI and waist circumference were significantly increased in individuals who were less dutiful. In women, neuroticism was inversely associated with BMI (β = −0.026, P<0.05). Openness to experience was negatively, and agreeableness was positively, associated with BMI (openness to experience: β = −0.072, agreeableness β = 0.068) and waist circumference (openness to experience: β = −0.202, agreeableness: β = 0.227) (P<0.05).”

The Supergene That Paints a Liar

This Island Life“The strange biology of island populations highlights the role of chance, not just selection, in evolutionary change.” – h/t john belmont!

Competition May Not Be the Driving Force of Species Diversity After All – h/t robert ford!

Big Testicles Drive Genetic Evolution: Size Does Matter After All“[A]nimals with larger testis having an increased speed of genome evolution, researchers have found.”

Bye bye RNA world

The Phylogeny of Everything, the Origin of Eukaryotes, and the Rules of Taxonomy: Death to Archaea, Bacteria, and Eucarya! Long live Archaebacteria, Eubacteria, Eukaryota, and Prokaryota!

Genomics/Bone Marrow Donation: Next-gen DNA sequencing enables reliable donor matching service

Is Ed Houben Europe’s most virile man?“Ed Houben has an unusual pastime. He has slept with scores of women who seek him out for his legendary powers of insemination…. Ed Houben has come to see his daughter for the first time. He talks gently to the six-week-old baby, and little Madita looks up at him. She is, he says, his 98th child.”

The Costume of Shangri-La: Thoughts on White Privilege, Cultural Appropriation, and Anti-Asian Racism – it’s worth quoting the whole abstract: “This piece poses cultural appropriation as an undertheorized aspect of white privilege in White Privilege Studies. By way of narrative exploration, it asserts that a paucity of scholarship on Orientalism and anti-Asian racism has created a gap in White Privilege Studies that curbs its radical transformative potential. It argues for the value of a structural and historically focused lens for understanding the issue of cultural appropriation, and extends questions of culture and race relations beyond the borders of the United States. It also explores the complex ways that interracial and transnational relationships can influence white racial identity, and illustrates the disruptive potential that queer interracial relationships can offer to dominant historical patterns of white behavior.” – (~_^) h/t ben southwood!

bonus: mr. mangan’s book! (^_^): Smash Chronic Fatigue: A Concise, Science-Based Guide to Help Your Body Heal, and Banish Fatigue Forever

bonus bonus: Backing the Big Bang“In breakthrough, astronomers find evidence of speedy ‘cosmic inflation’ of universe”

bonus bonus bonus: Does Time Flow? (video) – d*mn physicists! (~_^)

bonus bonus bonus bonus: Elephants Hear Age, Gender, Ethnicity in Human Voices – elephants are awesome!

bonus bonus bonus bonus bonus: Dinosaurs are not Extinct – YAAAAAAAAYYYYY!!!! – h/t steve stewart williams!

bonus bonus bonus bonus bonus bonus: The stripy stick insect that walked with dinosaurs“This is the earliest known plant-mimicking stick insect, its fragile body preserved for 126 million years in the dusty rocks of north-east China.” – h/t jason moore!

bonus bonus bonus bonus bonus bonus bonus: Flies That Do Calculus With Their Wings“The wings of fruit flies beat about 250 times a second.” – h/t kyle hill!

bonus bonus bonus bonus bonus bonus bonus bonus: Portolan Charts ‘Too Accurate’ to be Medieval – h/t heresiarch!

(note: comments do not require an email. polite elephant steps over fence.)

linkfest – 08/12/13

Is Beauty in the Face of the Beholder?“We concluded that individuals, if given the opportunity, seek to promote ‘positive assortment’ for Self’s phenotype, especially when the level of similarity approaches an optimal point that is similar to Self without causing a conscious acknowledgment of the similarity.” – on assortative mating, via race/history/evolution notes.

3.4-7.9% Neandertal admixture in Eurasia?“‘Our analysis allows us — for the first time — to formally reject a history of ancestral population structure and instead reveals strong support for admixture from Neandertals into Eurasian populations at a higher rate (3.4%-7.9%) than suggested previously.'” – @dienekes’.

and speaking of neanderthals: Neanderthals made leather-working tools like those in use today.

Genetics and alcoholism“Abundant evidence indicates that alcohol dependence (alcoholism) is a complex genetic disease, with variations in a large number of genes affecting a person’s risk of alcoholism. Some of these genes have been identified, including two genes involved in the metabolism of alcohol (ADH1B and ALDH2) that have the strongest known affects on the risk of alcoholism. Studies continue to reveal other genes in which variants affect the risk of alcoholism or related traits, including GABRA2, CHRM2, KCNJ6 and AUTS2.”

Sense of smell has a genetic flavour“Richard Newcomb of the New Zealand Institute for Plant and Food Research (IPFR) in Auckland and his colleagues have found the most convincing evidence yet of a genetic basis to the differences in people’s odour perception.” – via hbd bibliography.

Immigration and inbreeding“[T]he more inbred a country is, the more restrictive the attitudes of its population are on the issues of immigration and citizenship. Conversely, the more outbred a country is, the more its inhabitants tend toward unrestricted open borders.” – from the awesome epigone.

Religious people are less intelligent than atheists, analysis of over 63 scientific studies stretching back over decades concludes“Study found ‘a reliable negative relation between intelligence and religiosity’ in 53 out of 63 studies.” – via nelson.

Jason Richwine and some Hispanic data“In summary, if one uses scholastic data as a measure of ability, then there was some significant narrowing of the White/Hispanic gap in the early 1980’s, but that reduced gap has persisted thereafter. This finding discomforts those who predicted that the gap would never change, and those who said it was closing fast and would shortly disappear. Both are wrong, are partially right.” – from dr. james thompson.

Why can’t we talk about IQ? – from jason richwine. (in case you live in a cave. (~_^) )

ORIGINAL PAPER: Strong genetic influence on a UK nationwide test of educational achievement at the end of compulsory education at age 16 – @dr. james thompson’s blog. also Revealed: how exam results owe more to genes than teaching“New research by Professor Robert Plomin shows genes are more important than we like to think.”

Archaeology: The milk revolution“When a single genetic mutation first let ancient Europeans drink milk, it set the stage for a continental upheaval.” – @nature. see also Impressed Ware and Linear Pottery – Linearbandkeramik from greg cochran.

Variable mutation rates – age of puberty and There can only be one! from greg cochran.

A Tentative Ranking of the Clannishness of the “Founding Fathers” and The Cavaliers – from jayman.

Race matters when a patient needs a stem cell or marrow transplant“If you become ill with a blood cancer or other disease that requires a stem cell transplant, here’s an uncomfortable fact: Your race matters.” – why that fact should be *uncomfortable*, i have no idea, but i do admit that i’m odd. – via nelson.

Population Structure of Hispanics in the United States: The Multi-Ethnic Study of Atherosclerosis“By comparing genetic ancestry of MESA Hispanic participants to reference samples representing worldwide diversity, we show major differences in ancestry of MESA Hispanics reflecting their Caucasian, African, and Native American origins, with finer differences corresponding to North-South geographic origins that separate MESA Mexican versus Central/South American samples. Based on our analysis, we define four subgroups of the MESA Hispanic cohort that show close agreement with the following self-identified regions of origin: Dominican/Cuban, Mexican, Central/South American, and Puerto Rican.” – via nelson.

Perception of skin color in sub-Saharan Africa and Great hair … and how it evolved – from peter frost.

Book Review: The Righteous Mind – Why Good People Are Divided by Politics and Religion (2012) by Jonathan Haidt – from staffan. also James Q. Wilson and the Defense of Moral Judgment.

Why We Profile – from m.g. @thosewhocansee.

Classical eugenics and genetic engineering – from elijah armstrong.

Smart Enough to Know Better: Intelligence Is Not a Remedy for Racism“Smart people are just as racist as their less intelligent peers — they’re just better at concealing their prejudice, according to a University of Michigan study.”

Maternal urge decreases by a QUARTER for every 15 extra IQ points – from satoshi kanazawa.

Autistic girls have more ‘masculine’ brains and are ‘affected by the condition in a different way to men’

Personality May Predict If You Like Spicy Foods“Those in the group who fell below the mean AISS [adverse to risk taking] rapidly disliked the meal as the burn increased. People who were above the mean AISS [prone to risk taking] had a consistently high liking of the meal even as the burn increased. Those in the mean group liked the meal less as the burn increased, but not nearly as rapidly as those below the mean.”

Gherardini DNA Sample Could Identify “Mona Lisa”

bonus: BBC is biased toward the left, study finds“The BBC is twice as likely to cover left-wing policy proposals than those that are right-wing, a study has found.”

bonus bonus: The smell of fear more powerful than previously realised

bonus bonus bonus: Psychological adaptation to urbanization, technology reflected in word usage over last 200 years

bonus bonus bonus bonus: Paying Teens Not to Have Sex: What Mississippi Can Learn From Malawi. also The amazing, surprising, Africa-driven demographic future of the Earth, in 9 charts via michael anissimov.

bonus bonus bonus bonus bonus: Monsters, Marvels, and the Birth of Science“History: How the unlikely and unexplainable, strange and terrifying, spawned the age of science.”

bonus bonus bonus bonus bonus bonus: The lost voices of Britain before WW1: German recording of British PoWs reveals a rural society rich in now extinct accents that varied from village to village

bonus bonus bonus bonus bonus bonus bonus: Five hundred new fairytales discovered in Germany“Collection of fairytales gathered by historian Franz Xaver von Schönwerth had been locked away in an archive in Regensburg for over 150 years.”

bonus bonus bonus bonus bonus bonus bonus bonus: and funniest online sentence from last week – from the derb (of course!): “The latest round of revelations about Weiner, reported by Radio Derb last week, have certainly caused his poll numbers to detumesce.” – heh! (^_^)

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traditional family systems in medieval britain and ireland

remember emmanuel todd’s traditional family systems, 1500-1900? here they are again:

i wanted to try to extend this map back to the medieval period. here’s what i’ve got for the british isles after the arrival of the anglos, saxons and jutes (and frisians?) and after they converted to christianity. so, ca. 800-900s to maybe the 1200s. something like that (see color key above – note that i haven’t updated areas outside the british isles to reflect what was going on in those places during the medieval period):

pretty much all of ireland remained having todd’s endogamous (patriarchal) community families throughout the middle ages. in fact, todd is somewhat misleading in including ireland as a stem-family country between 1500-1900 since apparently the stem family didn’t really appear in ireland until after the 1850s. hmmmm.

western regions of britain — western scotland, wales and cornwall — also stuck with the endogamous community family system throughout the middle ages. so did the peoples in the anglo-scottish border areas — the border reivers. in fact, they were clannish right up through the seventeenth and eighteenth centuries — at least! — when many of them emigrated to what would become the u.s.

east anglia and kent, as we recently saw, also had community families in the medieval period, but they (i think) married out more, so they would be classified as exogamous community families. joint families were common in medieval east anglia and kent, but not so much crazy, infighting clans. there was also little manorialism in east anglia and kent compared to central england, but more than in places like scotland or ireland. remember that the manor system relied on nuclear families and, coupled with the oubreeding demands of the christian church, manorialism broke down genetic relatedness and extended family systems in the population.

the heartland of manorialism in england was central englandmercia and wessex. this is where there was the greatest number of manor estates — the most tenant farmer peasants and others bound to the land in service to a manor — the hardest push for outbreeding and nuclear families. interestingly, this is where hackett fisher’s cavaliers and indentured servants came from, sorta maintaining in the new world the ages old tradition of masters and servants from this region of britain.

i may not be right in delineating central england as having “absolute nuclear families” during the medieval period. perhaps they had more stem families, i’m not sure. what they definitely didn’t have, though, were extended community families of any sort.

not sure what was going on in northeast scotland.

sometime between the middle ages and the modern period, the community family systems disappeared (for the most part) and nuclear and stem families became the norm throughout the british isles.

previously: todd’s family systems and the hajnal line and emmanuel todd’s absolute nuclear family and east anglia, kent and manorialism

(note: comments do not require an email. caerlaverock castle, scotland. cool.)

inclusive fitness stuff

i think inclusive fitness is one of the coolest concepts. ever. it doesn’t explain everything in Life, of course, but it explains a lot. it’s certainly helped me to make sense of why people (most organisms) behave in the ways that they do towards other individuals.

here are some neat examples of inclusive fitness affecting human behavior from robin (ian macdonald) dunbar [pgs. 137-39]:

[T]here is plenty of empirical evidence to suggest that, irrespective of the importance of social kinship, biological (i.e. genetic) kinship does play an important background role in the decisions that individuals make on how they should treat each other. In an analysis of Icelandic Viking sagas, for example, my colleagues and I showed that individuals were significantly less likely to murder close relatives (those related to ego as paternal cousins or better) than less closely related individuals (for a similar analysis of the English kings and queens, see Johnson and Johnson 1991). More importantly, their willingness to murder relatives was modified by the value of the action to the murderer: they were willing to murder distant relatives for trivial benefits (e.g. in a drunken brawl), but close relatives were only murdered if the gains were very high (e.g. by doing so, they inherited an earldom or land). Similarly, the Vikings were more willing to form alliances (or to make loans of ships, supplies, or men for expeditions) with close relatives than more distant ones, and when they did so were less likely either to demand explicit reciprocation or to renege on the agreement later.

“Note that it does not matter much how the Vikings themselves construed their patterns of kinship in these cases: these findings are based entirely on pedigrees constructed out of declared paternities. While the Vikings may have occasionally made mistakes about paternity, as we all do, paternity (and maternity) were important to them because they were associated with rights to land. These paternities are, of course, all taken from the Vikings’ written records, the sagas that were composed and/or written down mainly in the thirteenth century to provide records of individual family histories. As with all historical records, we might ask whether we can rely on them: after all, victors in history tend to colour the accounts they give with their particular view. There are, however, three relevant circumstances in this particular case. First, these accounts were written for public consumption by a very small community (medieval Iceland) where most people were intimately familiar with both the events and the characters described (in most cases, their own immediate ancestors): they would not have hesitated to say so if Snorri Sturlson (who was responsible for composing a great many of the Icelandic sagas in the 1220s and 1230s) had made too many egregious errors. Second, the Vikings themselves were very clear on real paternity (as best as they could define it biologically): despite the fact that fostering was a major feature of their world (as it continued to be into quite recent times throughout northern Europe), they made a clear distinction between foster-sons or foster-brothers and real sons or real brothers. Foster-sons could inherit land from a foster-parent if the parent so chose, but they did so by right of adoption and not by birth-right. Finally, even if the stories are complete fiction, we can still ask: did the Vikings compose their stories in such a way that they followed biological prescriptions…?

“Another example of the way biological kinship intrudes into everyday life is provided by Madsen et al. They asked individuals from two different cultures (the UK and South African Zulus) to undertake a painful isometric skiing exercise for the benefit of relatives (who received a monetary or food reward that was directly proportional to the length of time for which the exercise was maintained). In five replicates of the experiment, the duration (and hence reward value) declined with declining relatedness to the subject. In this study, considerable care was taken in drawing up lists of potential beneficiaries to ensure that they were biological relatives of the specified degree. While there was inevitably a great deal of variation across individuals, the bottom line is that, on average, closer relatives did better than more distant relatives (or even children’s charities) across four degrees of relatedness (self vs siblings/parents vs grandparents/uncles/aunts/nieces/nephews vs cousins). When real sacrifice is involved (the exercise becomes excruciatingly painful the longer one does it), altruism is titrated by genetic relatedness.”

what i find really interesting (obviously, if you’ve been reading this blog for any length of time!) is how inbreeding (and outbreeding) relates to inclusive fitness. sure, a brother might be really predisposed to help out his brother much more so than a distant cousin — but what if that brother is also a cousin? shouldn’t cousin-brothers, on average, be willing to help each other more than just regular brothers? the answer seems to be yes.

what should be kept in mind about inclusive fitness, though, is that there are other social behaviors that it probably affects in addition to altruistic ones. ever since bill hamilton published his ideas on inclusive fitness, most researchers have been focused on altruistic behaviors. but one of hamilton’s papers was entitled “The Innate Social Aptitudes of Man.” note, not the innate altruistic aptitudes of man — but the social aptitudes of man. hamilton obviously thought his idea applied to other behaviors as well in addition to altruism.

one of those other behaviors, i think, is a drive to exercise some control over who your relatives (i.e. other individuals who share YOUR genes) mate with. i haven’t seen much discussion of this amongst sociobiologists — i referred to one interesting study in my “nepotistic nosiness” post. there’s more of this going on, i’m sure — or i bet, anyway. people (and other organisms) want to control, to different extents, how their relatives pass on the genes which they share in common. and, like in the proven cases of altruistic behaviors, they probably want to exercise greater control over the reproductive practices over closer relatives. AND, where inbreeding occurs, there are probably even stronger drives to control the reproductive practices of relatives, e.g. all the reproductive controls in saudi arabia where the cousin marriage rates are currently 50%+.

just some thoughts.

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