Did warfare among ancestral hunter-gatherers affect the evolution of human social behaviors?

@article{Bowles2009DidWA,
  title={Did warfare among ancestral hunter-gatherers affect the evolution of human social behaviors?},
  author={Samuel Bowles},
  journal={Science},
  year={2009},
  volume={324 5932},
  pages={1293-8}
}
Since Darwin, intergroup hostilities have figured prominently in explanations of the evolution of human social behavior. Yet whether ancestral humans were largely "peaceful" or "warlike" remains controversial. I ask a more precise question: If more cooperative groups were more likely to prevail in conflicts with other groups, was the level of intergroup violence sufficient to influence the evolution of human social behavior? Using a model of the evolutionary impact of between-group competition… CONTINUE READING
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