linkfest – 01/29/12

Caffeine Alters Estrogen Levels in Younger Women“In white women, for example, coffee appears to lower estrogen, while in Asian women it has the reverse effect, raising levels of the hormone.”

The self-domestication hypothesis: evolution of bonobo psychology is due to selection against aggression“[T]he self-domestication hypothesis provides a plausible account of the origin of numerous differences between bonobos and chimpanzees, and note that many of these appear to have arisen as incidental by-products rather than adaptations. These results raise the possibility that self-domestication has been a widespread process in mammalian evolution, and suggest the need for research into the regulatory genes responsible for shifts in developmental trajectories in species that have undergone selection against aggression.”

The Sub-Saharan African Dental Complex“[A]round 80,000 years ago, this population [in east africa] began to expand northward and eventually into Eurasia. Meanwhile, the same expansion was taking modern humans westward and southward into other parts of Africa.” – @evoandproud.

Explanations of rape“Given a robbery, criminals are more likely to use the opportunity to sexually assault a female victim if she is young.” – @the inductivist.

And your little dog, too! – from greg cochran. peter frost challenges. (~_^)

It Could be Culture, part I (The NAEP Black-Mixed-White gap) and It Could be Culture, part II (The NAEP Black-Mixed-White gap) – from chuck, the occidentalist.

7,500-Year-Old Fishing Seines and Traps Discovered in Russia – evidence for permanent mesolithic settlements in russia.

bonus: Lazy HBDers – @steve sailer’s.

bonus bonus: No Need to Panic About Global Warming“[M]any young scientists furtively say that while they also have serious doubts about the global-warming message, they are afraid to speak up for fear of not being promoted — or worse.” – gee. that sounds familiar.

bonus bonus bonus: How all the greatest thoroughbreds can be traced back to ONE horse 300 years ago“‘Speed gene’ traced back to single 17th century British mare”

(note: comments do not require an email. to infinity and beyond!)

9 Comments

  1. Hi HBD Chick :

    “Linfest”?

    Now you’re dropping more than just capitalization.

    Hey just a thought: I notice you’ve commented on MG’s news realism blog Those Who Can See dot calm. Good stuff right?

    I was encouraged to see that site pop up, along with Great Minds on Race com.

    I think we should encourage TWCS.com to post more regularly.

    Sincerely,

    Arturo

    – crimesofthetimes.com

    ps : hey do you think you could blogroll us ?

    Reply

  2. “The self-domestication hypothesis: evolution of bonobo psychology is due to selection against aggression”

    If you have a population that selects for violence and fierceness i wonder if beyond a certain frequency the casualty rate could get so high it collapses itself?

    Reply

  3. @arturo – “‘Linfest’? Now you’re dropping more than just capitalization.”

    yeah, jeez. you step away from the blog for FIVE minutes and everything goes to h*ll. i’m gonna have a word with the typesetters in the morning, and boy are they gonna be in trouble! (~_^)

    Reply

  4. @g.w. – “If you have a population that selects for violence and fierceness i wonder if beyond a certain frequency the casualty rate could get so high it collapses itself?”

    somalia? eritrea? i dunno, but it’s an interesting question.

    Reply

  5. Lowered estrogen levels, increased lesbianism?

    I have a feeling that at some point the thorough bred industry will become similar to the dog breeding industry with many weaknesses bred into it through time ….. too few branches on the tree.

    Reply

  6. Here is an interesting abstract from a study on the advantage of sex:

    “Consistent holistic view of sexual species as the highest form of biological existence is presented. The Weismann’s ideathat sex and recombination provide the variation for the natural selection to act upon is dominated in most discussions of the biological meaning of the sexual reproduction. Here, the idea is substantiated that the main advantage of sex is the opposite: the ability to counteract not only extinction but further evolution as well. Living systems live long owing to their ability to reproduce themselves with a high fidelity. Simple organisms (like bacteria) reach the continued
    existence due to the high fidelity of individual genome replication. In organisms with a large genome and complex development, the achievable fidelity of DNA replication is not enough for the precise reproduction of the genome. Such species must be capable of surviving and must remain unchanged in spite of the continuous changes of their genes. This problem has no solution in the frame of asexual (“homeogenomic”) lineages. They would rapidly degrade and become extinct or blurred out in the course of the reckless evolution. The core outcome of the transition to sexual reproduction
    was the creation of multiorganismic entity – biological species. Individual organisms forfeited their ability to reproduce autonomously. It implies that individual organisms forfeited their ability to substantive evolution. They evolve as a part of the biological species. In case of obligatory sexuality, there is no such a thing as synchronic multi-level selection. Natural selection cannot select anything that is not a unit of reproduction. Hierarchy in biology implies the functional predestination of the parts for the sake of the whole. A crucial feature of the sexual reproduction is the formation of
    genomes of individual organisms by random picking them over from the continuously shuffled gene pool instead of the direct replication of the ancestor’s genome. A clear anti-evolutionary consequence of the sexuality is evident from the fact that the genotypes of the individuals with an enhanced competitiveness are not transmitted to the next generation. Instead, after mating with “ordinary” individuals, these genotypes scatter and rearrange in new gene combinations, thus preventing the winner from exploiting the success.”

    To me it has long seemed obvious that one advantage of sexual reproduction is that, once in place, it allows for the simultaneous (parallel) evolution of each and every gene in the breeding population. This would hasten the evolution, not just of disease resistance, but any trait that increases reproductive fitness.

    This may be just another way of saying that larger populations evolve more rapidly. Not sure.

    Reply

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