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85_Ciera_Rebuild
04-08-2009, 05:19 AM
Chimpanzees enter into "deals" whereby they exchange meat for sex (http://news.bbc.co.uk/2/hi/science/nature/7988169.stm), according to researchers.

Male chimps that are willing to share the proceeds of their hunting expeditions mate twice as often as their more selfish counterparts.