linkfest – 10/19/15

First humans to leave Africa went to China, not Europe“The first humans to leave Africa decamped to far east Asia, not Europe. A trove of ancient teeth found in a cave in China adds evidence to the idea that humans reached the region thousands of years before they made it to Europe. The find suggests that modern humans reached China between 80,000 and 120,000 years ago. That challenges the widespread assumption that humans didn’t leave Africa until 60,000 years ago. It’s further evidence that Homo sapiens may have left Africa several times, says María Martinón-Torres of University College London. ‘It means we have to re-think different models of our dispersal.'” – and john hawks tweeted: “An 80kya modern human population in SE Asia w/Denisovan ancestry might help explain pattern of admixture in Philippines Mamanwa.”

Way Down South“I hear (tweets by Razib Khan, concerning Sankararaman’s talk at ASHG) that the Denisovans had substantially more genetic diversity than Neanderthals (determined mainly by the variety seen in admixed segments)….” – from greg cochran.

Lactase persistence and ancient DNA“‘…it seems plausible to me that the [European LP] allele first appeared in Central Europe, was spread around Europe by the LBK, before being introduced to the steppe later by migration from Europe.'”

Stonehenge builders had barbecue feasts at nearby party centre – and milk and cheeeeeese!

Basques are not simply a fusion of Iberian hunter-gatherers and early farmers“[T]he story told by the PCA is that Basques are the progeny of Bronze Age Iberians, who, unlike their Copper Age predecessors, experienced a pulse of steppe-related admixture from the east…. The key question now is who brought the steppe-related ancestry to Basque country. Were they Indo-Europeans or speakers of Proto-Basque?”

Sex‐specific demography and generalization of the Trivers–Willard theory – h/t owen jones! who tweeted: “Can mothers adaptively adjust offspring sex ratio? It’s complicated….”

The Great Migration and African-American genomic diversity“We find higher African ancestry in southern United States compared to the North and West. We show that relatedness patterns track north- and west-bound routes followed during the Great Migration, suggesting that admixture occurred predominantly in the South prior to the Civil War and that ancestry-biased migration is responsible for regional differences in ancestry. Rare genetic traits among African-Americans can therefore be shared over long geographic distances along the Great Migration routes, yet their distribution over short distances remains highly structured.”

Connectivity matrix predicts fluid intelligence“The enchanted loom is slowly giving up its secrets, of which it holds many. The patterns of brain activity that so many researchers have tracked with wonder are beginning to reveal a larger pattern: the possibility that each of us has a habitual pattern of brain activity which identifies us, and distinguishes us from others. So, dear reader, we are separated by the idiosyncratic rhythms of our brains, dancing to a different beat, visiting a different pattern of cortical locations, and no doubt coming to different conclusions…. The unexpected finding which I find startling is that individuals can be identified by their habitual brain patterns (not just on specific tasks) and those patterns of activity predict fluid intelligence on Raven’s Matrices at about r=0.5.” – from dr. james thompson.

Meta-analysis of associations between human brain volume and intelligence differences: How strong are they and what do they mean?“Positive associations between human intelligence and brain size have been suspected for more than 150 years…. Our results showed significant positive associations of brain volume and IQ (r = .24, R2 = .06) that generalize over age (children vs. adults), IQ domain (full-scale, performance, and verbal IQ), and sex…. We show that the strength of the positive association of brain volume and IQ has been overestimated in the literature, but remains robust even when accounting for different types of dissemination bias, although reported effects have been declining over time.”

Correlation not Causation: The Relationship between Personality Traits and Political Ideologies“Here we test the causal relationship between personality traits and political attitudes using a direction of causation structural model on a genetically informative sample. The results suggest that personality traits do not cause people to develop political attitudes; rather the correlation between the two is a function of an innate common underlying genetic factor.” – h/t robin hanson!

Generalised Anxiety Disorder – A Twin Study of Genetic Architecture, Genome-Wide Association and Differential Gene Expression“A heritability analysis of the same cohort also confirmed a significant genetic component with h2 of 0.42.” – h/t siberian fox! – and jayman tweeted: “I suspect anxiety is more common in some places than others. Perhaps due to genetic pacification.”

A Unified Crime Theory: The Evolutionary Taxonomy“Drawing on a variety of influences, we argue that many types of crime can be understood in the evolutionary context of human life history. Along these lines, we present a framework capable of explaining different patterns of criminal offending both at the individual level as well as the macro-level.” – from brian boutwell et al.

Resting heart rate and antisocial behavior: An updated systematic review and meta-analysis“Low resting heart rate was associated with higher levels of antisocial behavior…. Results were similar across behaviors, including aggression and violence.” – h/t anthony hoskin!

The association between childhood autistic traits and adolescent psychotic experiences is explained by general neuropsychiatric problems – from amir sariaslan et al. amir tweeted: “The ‘p factor’ explains assoc’s btwn childhood autistic traits and adolescent psychotic experiences.”

The Flynn Effect: IQ Testing Across Space and Time – from steve sailer.

What Extroverts and Introverts Can Learn From Snails“Genes may change a snail’s ‘personality’ and the thickness of its skin (or rather, its shell)”

Dimensional assessment of normal and abnormal personality in adults of the general population: Comparison of ‘five’ and ‘alternative five’ personality models – h/t andrew sabisky! who tweeted: “are normal and pathological personality all part of one continuum?”

So what if grammars don’t help social mobility?“On the Today programme and the New Statesman website, a statistic was quoted showing that grammar schools have a smaller percentage of pupils on free school meals than comprehensives. There are probably many reasons for this, but most likely the largest factor involved is that intelligence is hereditary and social class correlates with IQ; in other words, middle-class kids tend on average to be more intelligent than working-class ones. You could make the system fairer by replacing grammar entrance exams (for which richer parents hire tutors to help their children pass) with straight-up IQ tests, but the number of poorer children would still be disproportionately low. In fact the more social mobility we have over the generations, as everyone seems to want, the more that social class will correlate with intelligence. Richard Herrnstein pointed this out more than four decades ago. Many years earlier, Michael Young warned about this very process in The Rise of the Meritocracy. Social mobility does have its downsides; that’s because intelligence is just another privilege you inherit from mummy and daddy.” – from ed west.

The economic value of Breaking Bad: How misbehavior in school pays off for some kids“Surprisingly, we find evidence that some non-cognitive skills that manifest as childhood misbehavior in the classroom (and are predictive of lower schooling attainment) are also predictive of higher earnings later in life.”

A social science without sacred values“We argue (1) that many social scientists are paranoid egalitarian meliorists; (2) that they are therefore very sensitive to threats to a sacred egalitarian narrative; (3) that this sensitivity may be excessive (at least in the domain of science) and may cause researchers to unfairly reject research that challenges egalitarianism; (4) that this may then lead to the marginalization of individuals who forward controversial theories and/or data; and (5) that these tendencies lead to bias in the social sciences.” – from the winegard bros.

Social Status: Down the Rabbit Hole – h/t billare! who tweeted: “There are two systems of social status: Dominance & Prestige. For what selfish reasons might the latter one evolve?” – this was a really interesting read, btw.

Why Drunk Vegetarians Eat Meat – h/t jonathan haidt! who tweeted: “…esp. health vegs; moral vegs feel more disgust.”

Shame, guilt, and facial emotion processing: initial evidence for a positive relationship between guilt-proneness and facial emotion recognition ability“Guilt-prone people are highly skilled at recognising other people’s emotions.” [via] – w.e.i.r.d. study. pretty small n.

Gamblers, Scientists and the Mysterious Hot Hand“We’re all in the same boat. We evolved with this uncanny ability to find patterns. The difficulty lies in separating what really exists from what is only in our minds.” – h/t claire lehmann!

Dobzhansky and Montagu’s Debate on Race: The Aftermath

The Mutant Genes Behind the Black Death“Only a few genetic changes were enough to turn an ordinary stomach bug into the bacteria responsible for the plague.”

The End of Indian Summer“At first, human rights commissions fought discrimination only in employment and housing, and there was strong resistance to prosecution of people simply for their ideas. This situation changed from the 1970s onward. Human rights took the place in society that formerly belonged to religion, and human rights advocates acquired the immunity from criticism that formerly belonged to the clergy. Discrimination was no longer wrong in certain cases and under certain circumstances. It became evil, and people who condoned it in any form and for any reason were likewise evil.” – from peter frost.

Is Eastern Europe Any More Xenophobic Than Western Europe? – yes. but france is an exception in the west.

bonus: superforecasting conference on october 24th, if you happen to be in or near london: Superforecasting and Geopolitical Intelligence- Who can Predict the Future, and how?

bonus bonus: Did photosynthesis begin 3.2 billion years ago?“Rusty rocks from ancient ocean suggest bacteria produced oxygen far earlier than thought.”

bonus bonus bonus: The Beetle That Eavesdrops on an Ant’s Secret Language“A beetle evolves to ‘listen in’ on ants’ chemical messages to one another, changing the balance of an ecosystem.” [via]

bonus bonus bonus bonus: Ants con others into being their slaves by mimicking their scent

bonus bonus bonus bonus bonus: Sticky situation: maple syrup bandits face Quebec courts for infamous heist“Trials are under way for the 2012 attempt to steal $18m worth of Quebec’s sweetest export – a case that has succeeded in capturing Hollywood’s attention.”

bonus bonus bonus bonus bonus bonus: Pop Culture Pulsar: The Science Behind Joy Division’s Unknown Pleasures Album Cover

and the tweet of the week… (^_^)

https://twitter.com/SadHappyAmazing/status/655381841529012224

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

know thyself

you will never understand human biodiversity without first turning an hbd-eye on yourself.

before i elaborate on that, a small exercise. indulge me.

at the end of this sentence, when i ask you to, i want you to raise your eyes from your monitor (or smartphone or tablet or whatever device you’re using), glance around for a few seconds, and then come back here. okay: go!

back? great.

now, i don’t know exactly what you saw during your brief adventure away, but what i do know is that when you looked around your room or office or the coffee shop or your own private tropical island (d*mn you!), you experienced seeing a smooth, undisturbed, flowing picture of your surroundings — it was a video-like experience (hopefully not a shaky cam-like one! if so, get to a doctor, quick!). that experience is a false one, created by your brain to make life easier for you. what happens, in fact, is that each and every time we move our gaze from one object or scene to another, in the intervening nanoseconds, we are effectively blind. we don’t “see” anything for those split seconds. the reason we don’t experience what would presumably be a very disturbing and confusing one — the lights going off and on all day long! — is because our brains fool us. the brain interpolates the visual data captured via eyeballs, etc., and presents it all to its owner (user?) in a nice, even — but unreal — picture of what that individual “sees.”

cool, huh? yeah.

the reason i bring this up is just to illustrate how our brains are not really to be trusted. fantastic, wonderful, unfathomable organ! — but one that fools us. a lot! it deceives us so that we don’t go around bumping into things all day long (the saccadic masking mentioned above). it deceives us (deceives itself!) so that we can decieve others. it probably fools each of us into believing that we are discrete individuals — that we are or have “selves.” h*ck! it even looks like our consciousness is not a stream but more like rhythmic pulses. all for good evolutionary reasons, of course. but, still, there it is: the brain is a trickster.

once you realize this about the human brain — that it’s an indispensible but untrustworthy organ — all of the cognitive biases and dissonances that we suffer from start to make sense. humans are not rational creatures. we are capable of some amount of logic and rational thought (some more than others), but more often than not, our “reason” serves as an excuse generator for our innate drives, desires, and proclivities.

the next thing you need to know — and you really have to internalize this — is that all of those drives and desires and proclivities are innate. all behavioral traits are heritable to some degree or another, which means that genes are behind them, and which means that there’s not much any of us can do to change our natures. for instance, there prolly aren’t specific genes that will make a person a christian versus a muslim, but there are definitely genes “for” religiosity. which religion a person with “genes for” religious belief follows will obviously depend to a large degree on the culture in which he is immersed, but persons with “genes for” religious belief will tend to be religious or spiritual somehow.

all behavioral traits are heritable. and, so, you cannot change people or peoples — not fundamentally. people are what they are. you are what you are, and so most of your thoughts and conclusions and feelings about life and the world around you are expressions of your innate traits. mine, too. (don’t worry. i’ll get to that.) and let’s be honest: innate traits and a deceiving brain are no foundations for uncovering the truth. we cannot rely on our gut instincts in trying to uncover the facts about reality or to (consciously) understand how the world works. the only way around this problem of our lyin’, cheatin’, no-good brains is to rely on science and its finding. of course, since science is conducted by humans, we run into all those cognitive biases, etc., again. but with enough effort, i think we can eventually discover some truths. either that or space stations will some day start falling out of the sky, and we’ll know we’re doing it wrong.

now back to my initial point: you will never understand human biodiversity without first turning an hbd-eye on yourself. first, learn this about yourself — that your thoughts and feeling and behaviors are heritable and largely out of your control — and then try to apply this knowledge to your understanding of other individuals and groups. examine your ideas and your feelings. your gut instincts (be especially suspicious of those!). your beliefs. you may think you have thought through the important questions rationally, but chances are you haven’t. not really. be honest with yourself. and be hard on yourself. but remember to have a laugh about it all, too — how absurd it all is really at the end of the day! (~_^)

remember my three laws of human biodiversity. and don’t ever forget that there are exceptions to the rules — and that you might be one of them — or your neighbor might. always — always! — keep in the forefront of your mind the concept of AVERAGE when you think about the human biodiversity between groups — and that not every member of a group will fit the average. do NOT pick and choose the areas of human biodiversity that suit your tastes and disregard the rest. you won’t get any dessert if you do.

most importantly — and i can’t emphasize this enough — do NOT project your innate feeling and thoughts and inclinations onto others! you might think and feel one way, but the other person sitting next to you might not. and he might really think and feel very differently from you, and have a completely different perspective on the world — different in a fundamental way — that neither he nor you can change, because he was born this way. (or maybe experienced a developmental insult that affected his biology in a similarly permanent sort of fashion.)

do not project your preferences onto other individuals or groups. just because you like to keep a super tidy house (you ocd person) doesn’t mean others do. and just because you and your people feel that living in nuclear families and having loose (or nonexistent) extended family ties is a nice way to live doesn’t mean that other peoples want that. and just because democracy happens to work well in your population — or autocracy, depending on where you’re from — doesn’t mean either of them would transfer well to other populations having different average innate characteristics from your own.

so, below are some aspects of human biodiversity you might want to run through when you’re getting to know thyself. there’s lots more. these are just some things i thought of off the top of my head. (if i were really organized, which i am not, i would’ve linked to how heritable each of these different traits is. maybe i’ll go back and fill those in one of these days. for now, you’re on your own — google ’em. or check jayman’s blog. he’s probably got a lot of the heritability figures over there! (^_^) ) try and see if identifying and recognizing any or all of your innate traits helps you to understand why you think and feel and behave in the ways that you do.

i’ll start.

– are you male or female? men and women on average think and feel differently about an awful lot of things. don’t blame me. i’m just the messenger.

– are you heterosexual or homosexual? or some other sort of sexual? heterosexual men and women on average think and feel differently about quite a lot of things compared to gay men and lesbian women et al. and i don’t just mean about preferred sexual partners. remember that there are always exceptions to these rules. and remember not to PROJECT your thinking/feelings onto other subgroups here (yes, i am looking at you butch lesbian feminists!).

– what is your racial and, to my mind more interesting and important, ethnic background? what other sort of population or subpopulation might you belong to (eg. siberian peoples or sicilians)? are you a person of mixed heritage? plenty of average differences in all sorts of directions here.

– how intelligent are you? what’s your iq? try to remember that people of much lower intelligence than you will have a very hard time understanding a lot of the things that you do, and that you will find it difficult, if not impossible, to grasp the ideas and concepts that people more intelligent than you can. be humble (if you’re able).

– what personality traits characterize you? both big 5 and hexaco. are you open to experiences? people who score low on openness are generally conservative. are you conscientious? in other words, are you efficient and organized or more easy going and (*ahem*) disorderly? are you an extravert or an introvert? if you’re an extravert, you’re probably not enjoying this exercise at all. sorry. (in my experience, extraverts are not very introspective.) are you agreeable? kind, sympathetic, warm. or are you angry all the time? are you neurotic or emotional? or are you more stable? and from the hexaco scale, where do you rank when it comes to honesty-humility?

– how old are you? if you’re under, say, 24, keep in mind that your brain hasn’t finished developing yet. your frontal lobes are incomplete, so you’ve got very little sense. (~_^) if you’re a young male, between say 16 and 24, you might be quite aggressive (although not necessarily violent) and risk tasking. be careful out there! if you’re (*ahem*) older, remember that everything slows down with age. (sorry to remind you of that!) it does get harder to teach old dogs new tricks. and everybody, remember that, in general, each of us becomes more like our true selves as we get older, because we get to choose our preferred environments once we grow up.

– are you religious or areligious — or even irreligious? remember that religiosity/spirituality is highly heritable.

– are you conservative or liberal or something in between? or something more extreme? or apolitical? remember than political orientation is also highly heritable.

– are you an optimist or a pessimist? is the glass half full or half empty? are you a depressive, emo kid or are you one of those always-chipper people? again, all highly heritable.

– are you a follower or a contrarian? i haven’t seen much research on this (i know there is some, but i wish there was more), but i’d bet a ton of $$$ that these traits are highly heritable, too. prolly tie in with all the personality traits above.

– are you on the autism spectrum somewhere? one of simon baron-cohen’s systemizers or empathizers? do you have adhd? ocd? a touch of paranoid schizophrenia? (just because you’re paranoid….) all of these conditions can — and do! — obviously strongly affect the way individuals think and feel about the world around them.

– what about your personality and the dark triad? are you a psychopath? narcissist? machiavellian in your nature? again, all of these relate back to the personality traits above. are you histrionic?

– what’s your 2d:4d ratio? no one’s sure what’s behind the differences of these, but the ratio does correlate with all sorts of traits and behaviors.

– are you from what i call a “clannish” population or not? from a population that historically was located behind the hajnal line or not? you may disagree with me on why i think “clannishness” exists as a set of behavioral traits in different populations, but there’s not much disagreement on the fact that the behaviors do exist (and are measurable): individualism/collectivism vs. familism/non-collectivism; universalism vs. particularism; civic-minded/commonweal oriented vs. not civic-minded/not commonweal oriented; low corruption vs. high corruption; etc. again, you might be an exception to your population’s rule. then again, you may not be.

– do you think like a westerner?

– and, a special shout-out to one super-group: are you eastern european? if so, you might prefer authoritarianism (especially left-wing authoritarianism). keep in mind that others of us don’t.

that’s it! that’s all i’ve got for now. (^_^)

see also: me, myself, and i

previously: what is human biodiversity (hbd)? and hbd chick’s three laws of human biodiversity and you and me and hbd

(note: comments do not require an email. know thyself.)

you and me and hbd

continuing on from the other day, jamie bartlett and timothy stanley are flat-out wrong that human biodiversity (hbd) is “neo-fascist” “bad science.” human biodiversity is simply the diversity found among and between human populations that has a biological basis. that’s all. yes, that most likely includes some degree of biological variation affecting the measurable difference in intelligence between individuals and various populations, but it’s early days yet on that front, and we barely know what exactly that biological variation entails. i’m sure the chinese will let us know all about it soon enough.

bartlett is sorta right about one thing, though (see his fourth paragraph here): that many who accept human biodiversity, many individuals on the political right, obsess over the racial differences in iq. he’s wrong to claim that the research that has found average differences in iq by race is pseudoscience, and he’s wrong to claim (indirectly as he does) that races don’t exist, but he is right about the obsess part.

now, i am the LAST person who should criticize anybody for obsessing about any one thing (see: most of this blog), but i’m going to anyway. if you accept that humans exhibit biologically based diversity, then you’d better be prepared to accept ALL of it. here’s the problem: too many of the people who obsess over the racial differences in iq DON’T want to accept — or often even think about! — OTHER facts, or possible facts, related to hbd. especially about their own kind.

as misdreavus tweeted…

misdreavus 01 sm

…and…

misdreavus 02 sm

quite so.
_____

here’s an example. try — just try! — bringing up the apparent average differences in iq between the sub-populations of europeans and see what happens. i dare ya! (~_^) [map stolen from jayman.]:

jayman's map

too many (imho) in the hbd-o-sphere don’t want to hear it (while, meanwhile, there is this obsession over racial differences in iq). never mind that human accomplishments from europe map extremely well onto the average iq distributions (although i think there’s possibly more to it than just iq):

charles murray - human accomplishment map - european core

here’s another more personal example. i happen to be an agnostic when it comes to the existence of a god(s). functionally i’m an atheist, and i almost never think about the topic, but i can’t see how we can know whether or not there is a god(s). what if he is omnipotent? then, of course, he’d be able to hide his existence from us, right? (don’t answer that — i really don’t want to get into a discussion about religious belief.) that seems very logical to me — it just seems right — but we know that religious belief is highly heritable, so this is probably just my genes talking — my “genes for neuroticism” maybe (i’m such a neurotic (~_^) ).

my point is that, while my agnosticism seems logical to me, i’m probably just born this way. and i need to keep that in mind. i really do. i should also remember that a lot of my other “logical conclusions” might not be so logically based either.

and so should you — about your own conclusions, i mean.

we should rely, instead, on what science tells us (see end of post).
_____

the obsession about racial differences in iq in some circles of the hbd-o-sphere is all about confirmation bias, of course, which all humans are prone to (yes, even me!) — although some more than others in my experience. people see what they want to see and disregard the rest. i’m going to quote that pessimistic pothead john derbyshire on this, ’cause the dude is like toootally awesome on these sorts of things [pg. 154]:

“Researchers like Tversky and Kahneman have identified dozens of different kinds of bias. Some of them have leaked out to become common knowledge: *confirmation bias*, for example — the tendency to give extra weight to facts that support our predesired conclusion….

“Can we correct our biases? That depends on whom you ask. The overall picture that emerges from the cognitive science researchers of the last half century is one of a brain that struggles to cope with reality, and rarely does very well at it.

“Worse yet: Its not doing very well may be *adaptive*. That’s a term of art in biology. A trait is adaptive if an organism that possesses this trait gets a reproductive edge thereby over an organism that doesn’t.

“Researchers like S. Taylor and J. Brown (‘Illusion and Well-being, 1988) have found that a moderate degree of self-deception is normal in mentally healthy people, and is likely adaptive. Contrariwise:

“‘[I]t appears to be not the well-adjusted individual but the individual who experiences subjective distress who is more likely to process self-relevant information in a relatively unbiased and balanced fashion.’

“To put it slightly differently: Up to a point, the more depressed and maladjusted you are, the more likely it is that you are seeing things right, with minimal bias.”

oh, dear. =/

so, it’s asking too much, i know, and it’s not fair of me — humans are given to cognitive biases, they are a part our nature, and we will never get rid of them (not without a really stringent genetic engineering program, anyway!) — but, as a favor to me, if you are interested in and/or accepting of the principles of human biodiversity, please try to be open to all sorts of hbd possibilites, even the ones that seem to go against yourself or your own group. try.

by way of demonstration, going back to the average differences in iq between europeans, my own european ethnic group doesn’t have a very high average iq. no one from my group invented the steam engine or the microprocessor and we sure as h*ll weren’t the first people to travel into space. on top of it, we’re one of the piigs. those are the facts. that’s just how it is. no point in pretending otherwise. (i could also mention all of the male-female differences, too, of course, but i really can’t get engaged in that discussion, it’s just so…obvious.) and there are undoubtedly biological reasons for this lack of achievement from my group. see? what i’m asking is possible, although probably more difficult for some than others. but we’re not going to solve any of humanity’s problems without the truth, so we should at least try. a bit. who knows? maybe we’ll succeed — a bit.

and remember: focus your attention on scientific results that have been successfully reproduced — and focus your attention on scientific results that enable us to make predictions about individuals/populations. these are good indicators that science has actually been done. (please note that most of what i discuss on this blog — my own interest in inbreeding/outbreeding/etc. — is NOT science. it’s just an idea. i’m NOT doing science.)

that is not to say that speculation and theorizing have no place in hbd discussions! rather to the contrary, speculate away! and obsess away! just be clear about when you are speculating — and remember not to obsess to the exclusion of everything else hbd.

thank you. (^_^)

previously: in the dark about the dark enlightenment

(note: comments do not require an email. be careful with science, too! (~_^) )

linkfest – 09/01/13

It Must Be Said“There are facts that were once known, sometimes generally known, that are now known to but a few…. Many people assume that everyone is secretly aware of those unpleasant facts, but that is not the case. A generation that has grown up never hearing those facts will be almost entirely unaware of them, in part because their personal life experiences don’t impinge on those patterns much…. Anyhow, I intend to occasionally make a clear statement of some hateful fact – not necessarily because I have anything new to say on the subject (which is what I prefer). Someone has to corrupt the rising generations.” (^_^) – from greg cochran.

White Men Can’t Reach“‘[S]ports will continue to provide a splendid stage for the fantastic menagerie that’s human biological diversity. Amid the pageantry of the Opening Ceremony of the 2016 Olympics in Rio de Janeiro, make sure to look for the extremes of the human physique…. It is breathtaking to think that, in the truest genetic sense, we are all a large family, and that the paths of our ancestors have left us wonderfully distinct.'” – *sniff* – steve sailer reviews david epstein’s The Sports Gene.

Why We Can’t Talk About IQ“This is how we are: jumbles of superstition, emotion, self-deception, and social conformism, with reason and science trotting along behind trying to keep up.” – from the derb.

Evolution of monogamy in humans the result of infanticide risk“The threat of infants being killed by unrelated males is the key driver of monogamy in humans and other primates.”

European Hunter-Gatherers Had Domesticated Pigs Earlier Than Thought“Domesticated pigs were present in northern Germany around 4600 B.C., some 500 years earlier than previously thought, new fossil and DNA evidence reveals.”

Hidden shell middens reveal ancient human presence in Bolivian Amazon“Previously unknown archeological sites in forest islands reveal human presence in the western Amazon as early as 10,000 years ago….”

Mycobacterium tuberculosis: Our African follower for over 70,000 years!“The researchers compared the genetic evolutionary trees of mycobacteria and humans side-by-side. And to the researcher’s surprise, the phylogenetic trees of humans and the TB bacteria showed a very close match. ‘The evolutionary path of humans and the TB bacteria shows striking similarities….'”

Human Microbiome May Be Seeded Before Birth

You Are Your Bacteria: How the Gut Microbiome Influences Health“The bacteria in our gut already plays an important role in digestion. But new studies indicate that our bacteria could play a major role in whether or not we become obese.”

Edinburgh is surprise capital of redheaded Britain and Ireland“The Edinburgh area is the most red headed region, according to the study, with 40 per cent of the population carrying one of the three common red hair gene variants.” – i love red hair! there’s a map here.

Live fast, die young – from mr. mangan, esq. see also: Single Gene Change Increases Mouse Lifespan by 20 Percent and Biologists May Have Identified Gene Central to Development, Reproduction and Aging – h/t hbd bibliography, here and here!

Is war really disappearing? A new analysis suggests not“Countries may simply have less ability to fight.”

Men feel worse about themselves when female partners succeed

Are You Smarter Than You Think?“The evolved wisdom behind our seemingly stupid decisions…. [B]iases are often not as stupid as psychologists like to make them out to be.” – h/t jason collins!

Poverty Saps the Brain’s Mental Reserves“The mere circumstance of being poor can reduce a person’s cognitive abilities by consuming precious mental resources.”

DNA Methylation: Are Your Genes Turned On?

Personal space: how close is too close?“Scientists have determined what the absolute limit is for invading other people’s personal space. … between eight and 16 inches from our faces.” – back off! (~_^)

Your spouse’s voice is easier to hear — and easier to ignore (~_^)

HBD Proponents, Racists and Racialists – some criticism of hbd-ers. i say that the study of human biodiversity can be a force for good! (^_^)

A Discussion On Race, Crime And The Inconvenient Facts

Live by the Sword – a review of The Faithful Executioner: Life and Death, Honour and Shame in the Turbulent Sixteenth Century, a new book about frantz schmidt.

bonus: Counter-Currents Interview of chip of the hoover hog!

bonus bonus: Mind meld? Scientist uses his brain to control another guy’s finger – freaky! (but in a good way. (^_^) )

bonus bonus bonus: These Two Ancient Roman Techs Could Disrupt Modern Industry – h/t nelson!

bonus bonus bonus bonus: A Short Guide To The Middle East – @the assistant village idiot’s!

bonus bonus bonus bonus bonus: 20 Seconds of Tetris Madness (O_O)

bonus bonus bonus bonus bonus bonus: Vote reveals the 50 funniest one-liners ever“‘I went to a restaurant that serves “breakfast at any time”. So I ordered French Toast during the Renaissance.’ – Peter Kay; ‘I believe in equality. Equality for everybody. No matter how stupid they are or how superior I am to them.’ – Steve Martin.” (~_^)

(note: comments do not require an email. any excuse to link to this! (^_^))

linkfest – 08/27/13

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!)

linkfest – 06/10/13

The breeder’s equation – R = h2S – from greg cochran.

Making Europeans kinder, gentler – from peter frost.

Napoleon Chagnon: Blood is their Argument“‘It’s almost always for revenge. Blood is their argument. The Yanomamö will always attempt to avenge the death of a kinsman. It may take them a long time, and when the tables are turned on the guys that did it, like they get too small as a group, then it may appear to be a preemptive strike, but it has some historical roots. It’s almost never a case where they attack another Yanomamö village preemptively for no reason at all. It’s usually a consequence of some previous argument.'” – via habitable worlds: Darwin’s Dangerous Clan. see also Historical Reality: Infanticide vs Abortion @occam’s razor.

Zazes, Flurps and the Moral World of Kids – four-year-olds “assume that everybody else will be biased against other groups. And this extends beyond race, gender and religion to the arbitrary realm of Zazes and Flurps.” – h/t charles!

Manly Sweat Makes Other Men More Cooperative“A chemical component of other guys’ sweat makes men more cooperative and generous, new research says. The study is the first to show that this pheromone, called androstadienone, influences other men’s behavior and reinforces the developing finding that humans are susceptible and responsive to these chemical signals.”

120,000 Years of Cancer“A Neanderthal who lived more than 120,000 years ago had cancer of the bones, in the earliest known incidence of the disease found in the human fossil record, a new study reports.”

How does inbreeding avoidance evolve in plants?“Case study of Leavenworthia suggests that loss of complex traits may be reversed.”

A Requiem for Science – from john derbyshire.

The Gentleman Naturalist“[Darwin and Wallace’s] papers were presented to the Linnean Society in July 1858, and met with silence: as Desmond and Moore say, ‘no fireworks exploded, only a damp squib’.”

ORIGINAL PAPER: How clever were the Victorians? A comment on Woodley et al. (2013) – from elijah armstrong!

The Onset and Development of B-W Ability Differences: Early Infancy to Age 3 (Part 1) – from jason malloy. see also dr. thompson: By the age of three, a clear gap in ability.

Slowing immigrant assimiliation“George Borjas’s latest paper released at NBER shows that newer waves of immigrants are less able to assimilate than previous immigrants waves.” – @gucci little piggy. see also: Two books, one conclusion. Immigration has been and is too high. @conservative home (u.k.).

The Real Threat to British Elites“Why British elites covered up the Pakistani pimps’ child gangrape horror.” – from steve sailer.

Population history of the Caribbean (Moreno-Estrada et al. 2013) and IBD sharing between Iberians and North Africans (Botigué et al. 2013) – @dienekes.

How Game Might Have Benefited Jason Richwine – ask and ye shall receive! [no double entendre intended. you guys have been reading too much roissy! (~_^) ] – good stuff from heartiste! (thanks, h!)

Geography, race, religion, and class“[W]ealthy suburban and rural blacks go to church more than poor inner-city blacks do, and wealthy suburban and rural whites attend more than poor inner-city whites do.” – from the awesome epigone.

People Are Overly Confident in Their Own Knowledge, Despite Errors

Ethnic policy in ancient Japan – from spandrell!

“‘[F]ertility may be a strategic choice for ethnic groups engaged in redistributive conflict'” [pdf] – via race/history/evolution notes.

Atheists turn to science during times of stress

Genetics and the increase in obesity – from jason collins. see also mr. mangan, esq.: The Rise of Mental Illness and Obesity.

100 Blog Posts – A Reflection on HBD Blogging And What Lies Ahead – from jayman. and jayman jr.!! (^_^)

Back in the saddle – m.g. @thosewhocansee is back (or will be back shortly)! yaaaaayyyyyy!!!! h/t nelson!

Human Biodiversity – Things You Are Not Supposed to Know About – from staffan!

bonus: Review of “Blood Meridian” by Cormac McCarthy – from foseti. see also this great set of “randoms” from mr. f. you should click through to every last one of them (if you haven’t already)!

bonus bonus: How the chicken lost its penis – a lesson for all!

bonus bonus bonus: Leviathan Unbound – from malcolm pollack.

bonus bonus bonus bonus: light entertainment – @PRISM_NSA on twitter and Obama Is Checking Your Email on tumblr. (~_^)

bonus bonus bonus bonus bonus: Life wasn’t all trouble at mill“[T]he Industrial Revolution came as a tremendous boom to a lot of working people: they earned far more than they had done before, escaped lives of crushing poverty and for the first time began to exert some measure of control over their lives.”

bonus bonus bonus bonus bonus bonus: Is Humbert Humbert Jewish?

bonus bonus bonus bonus bonus bonus bonus: The Fight to Save Ping Pong – excellent!

(note: comments do not require an email. dirty jobs – sexing baby chickens!)

linkfest – 06/17/12

More on Farming and Inheritance Systems – Part I: IQ – from jayman!

Spanish cave paintings shown as oldest in world“New tests show that crude Spanish cave paintings of a red sphere and handprints are the oldest in the world, so ancient they may not have been by modern man. Some scientists say they might have even been made by the much-maligned Neanderthals, but others disagree.”

Childhood obesity found linked to math performance“When compared with children who were never obese, boys and girls whose obesity persisted from the start of kindergarten through fifth grade performed worse on the math test, starting in first grade, and their lower performance continued through fifth grade. For boys whose obesity emerged later (in third or fifth grade), no such differences were found, and for girls who became obese later, poorer math performance was temporary.”

Why Smart People Are Stupid“[I]ntelligence seems to make things worse. The scientists gave the students four measures of ‘cognitive sophistication.’ As they report in the paper, all four of the measures showed positive correlations, ‘indicating that more cognitively sophisticated participants showed larger [cognitive] bias blind spots.'”

Another look at Muslim fertility – from the inductivist.

Spot the Correlation: Wealth vs. Immigration – from dennis.

Scientists Sequence Genome Of Human Relative That Prefers Love Over War“They found that more than 3 percent of the human genome is more closely related to either the bonobo or the chimpanzee than the two apes are to each other, which indicates that the three species share a complex evolutionary relationship.”

bonus: ‘Sexual depravity’ of penguins that Antarctic scientist dared not reveal“Landmark polar research about the Adélie penguin’s sex life by Captain Scott’s expedition, deemed too shocking for the public 100 years ago, is unearthed at the Natural History Museum”

bonus bonus: ‘Oldest galaxy’ discovered using Hawaii telescope“Japanese astronomers on Hawaii say they have found a galaxy 12.91bn light years away”

bonus bonus bonus: That Squid On Your Plate Could Inseminate Your Mouth – ewww!

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

linkfest – 09/10/11

Earliest Signs of Advanced Tools Found — also, john hawks on the find.

The Verge of Human – @the loom. there might be some fossilized skin from one of these fossils, too. cool!!

Modernity and the Lynn-Flynn Effect – from dennis mangan.

Human ancestors interbred with related species“Analysis suggests genetic mixing occurred in Africa around 35,000 years ago…. Hammer says this disproves the conventional view that we are descended from a single population that arose in Africa and replaced all other Homo species without interbreeding. ‘We need to modify the standard model of human origins,’ he says.”

Study links baby’s behavior and adult brain function“A new study that tracked children from before they were teething until they were graduating high school suggests that a baby boy’s temperament may predict his brain activity nearly two decades later.”

Freedom to Riot: On the Evolution of Collective Violence“Collective violence, extending from riots to warfare, presents a challenge to our ordinary understanding of free will. Actions that would rarely be taken by an individual on their own seem to be embraced when supported by a larger group.”

Scientists find they can control how people react to group pressure – baaaaaaah.

Why Is Average IQ Higher in Some Places? – it’s not the whole story, but it’s likely part of it.

Couch Potatoes Explained? Missing Key Genes May Be Cause for Lack of Resolve to Exercise, Researchers Find

Blacks are more narcissistic – @the inductivist.

bonus: The “Yellow Snow” Test for Self-Recognition – watch out where the huskies go!

bonus bonus: The irrationality of politics

(note: comments do not require an email. baaaaaaah.)