Women may get offended at dates who expect a little something extra after they buy a steak dinner, but for chimpanzees, the exchange may be a fair one, German researchers said yesterday.
They found that female chimpanzees mate more with males who often share meat with them.
“Our results strongly suggest that wild chimpanzees exchange meat for sex,” said Cristina Gomes, of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany.