AnimusRex
Posts: 2165
Joined: 5/13/2006 Status: offline
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I read the article, and it seems to be an interesting hypothesis, I notice it was not peer reviewed or is an accepted fact by the scientific community. So the jury is still out. However, it ties to another interesting article I read this weekend in the LA Times review of Books. http://www.latimes.com/entertainment/news/arts/la-ca-karen-armstrong11-2009oct11,0,4977378.story The reviewer quotes a book by Nicholas Wade regarding the evolution. Sample quote: "In the lost history whose DNA-aided recovery Wade chronicles, one of the most interesting chapters covers "gracilization" -- that is, "a worldwide thinning of the human skull" starting around 40,000 years ago. Why was it that, millenniums before the agricultural revolution, our ancestors became progressively lighter-boned and smaller? A crucial clue: The fossil record and contemporary breeding experiments alike confirm that domestication, whether accidental -- as in the evolution of the dog from the wolf -- or deliberate, induces pedomorphism, or the retention of juvenile features into adulthood. "Gracilization . . . occurred because early modern humans were becoming tamer," Wade writes. "And who, exactly, was domesticating them? The answer is obvious: people were domesticating themselves. In each society the violent and aggressive males somehow ended up with a lesser chance of breeding. This process started some 50,000 years ago, and, in [primatologist Richard] Wrangham's view, it is still in full spate." Which seems counter-intuitive, that the less aggressive and violent males were selected by females for breeding. On the other hand, it could be that the less aggressive men were seen as being more fit for family and community life, which produced more stability and wealth.
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