Wednesday, December 27, 2006

Complexity Slows Evolution

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Categories : Evolution, Brain

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published: mercredi 27 décembre 2006 16:08:59

From here:

What they found was that the "more advanced" species had faster overall rates of evolution. So, on average, the genes from humans and chimpanzees changed faster than genes from monkeys, which changed faster than those from mice.

They explained the trend as a correlate of smaller population size in the more advanced species. Species with smaller population size can more easily escape the harsh scrutiny of natural selection.

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