Why war is a man's game

  title={Why war is a man's game},
  author={Alberto J. C. Micheletti and Graeme D. Ruxton and Andy Gardner},
  journal={Proceedings of the Royal Society B: Biological Sciences},
Interest in the evolutionary origins and drivers of warfare in ancient and contemporary small-scale human societies has greatly increased in the last decade, and has been particularly spurred by exciting archaeological discoveries that suggest our ancestors led more violent lives than previously documented. However, the striking observation that warfare is an almost-exclusively male activity remains unexplained. Three general hypotheses have been proposed, concerning greater male effectiveness… 

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