Razib Khan has a nice post discussing how a macro-environmental factor, the adult male to female sex ratio in a population, can greatly impact how men and women behave. This society wide difference in environmental context which varies consistently across cultures is a good example of how context, rather than genetics, can have broad impacts that differ from group to group.
Uninformed by this environmental factor, one could easily and wrongly infer that ancestry informative genetic differences were the cause of these behavioral differences.
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