https://www.nationalgeographic.com/animals/article/chimps-behavior-sex-news-animals
Chimps Trade Meat for Sex—And It Works
Wild male chimps that share their monkey meat with females double their
chances of having sex with those females, a new study says.
PUBLISHED APRIL 7, 2009
The time-honored tradition of the dinner date may be just one more example of evolution at work.
Wild male chimps that share meat with females double their chances of
having sex
with those females, a new study says. The findings support a long-held hypothesis
that food sharing improves male chimpanzees' chances of mating.
Studies had long shown that male chimpanzees shared meat with females, which don't typically hunt. The reason for the meat sharing, however, was a mystery—though perhaps not too tough to guess.
Males observed in the West African nation of Côte d'Ivoire (Ivory Coast) shared
monkey meat with females that exhibited the pink swellings on their rear ends that indicate ovulation and sexual availability.
More surprising was that males shared meat with females that didn't have
sexual
swellings, perhaps in hopes of future success, the researchers say.
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