In any case I strongly suspect the general non-violence trend (document by Pinker) in the past few thousand years was due to biological changes in humans because of our self-domestication.
They cite evidence of “moderate to strong heritability” of male aggressiveness. Shouldn’t strong selection pressures use up variance and thus lower heritability?
They cite evidence of “moderate to strong heritability” of male aggressiveness. Shouldn’t strong selection pressures use up variance and thus lower heritability?
Not in this case. At least not if Gregory Cochran and Henry Harpending are right and we have more new mutations tested due to a large population than we would otherwise.