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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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 …
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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Aren't dog breeds and agricultural genetics bad analogies for human evolution, given that they're goal-directed and involve much faster reproduction than we see in humans?
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Actually, it still proves the point. Domesticated dogs still possess the instincts despite appearances. Feral dogs are prime examples of activated DNA due to circumstances.
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You are talking about superficial characteristics which already exist and have not truly been mutated just altered in appearance.
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Why is level of aggression not a “superficial” trait, as you say?
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