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Chimpanzees Exchange Meat for Sex
from BBC News Online
Chimpanzees enter into "deals" whereby they exchange meat for sex, 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.
This is a long-term exchange, so males continue to share their catch with females when they are not fertile, copulating with them when they are.
The team describe their findings in the journal PLoS ONE. Cristina Gomes and her colleagues, from the Max Planck Institute for Evolutionary Anthropology in Germany, studied chimps in the Tai Forest reserve in Ivory Coast.
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