Male humans get into fights about 1/1000th as often as male chimps, and we've been self-domesticating for lower aggression for about 300,000 years -- Harvard anthropologist Richard Wrangham in talk today at @UNM.
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Is Wrangham arguing ‘self-domestication’ via biological evolution or cultural? (I.e. is he arguing for genetic selection for less aggression? Or just anti-aggression social norms, but no corresponding genetic changes?)
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Very doubtful, genetic changes take hundred of thousands, if not millions of years. More likely, domestication is the result of environmental factors including contamination. DNA is just waiting to be activated.https://m.phys.org/news/2011-08-fast-evolutionary-million-years.html …
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Totally wrong. Evolutionary change is proportional to additive heritability of the trait times the selection pressure on the trait. It can happen very fast, as we see with diversification of dog breeds, or in agricultural genetics.
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Interesting. Thanks.
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umm, more like genetic filtering. Various social stigmatizing tools/process isolate & filter away undesirable traits from the gene-pool
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Baldwin effect maybe?
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Did Wrangham say if he believes the selection pressure was mostly intrinsic so that gradually our neurons make us not want to do violence rather than verbal communication, or that the most violent members were killed directly? And then selection pressure before they reproduced?
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