Picture of chimpanzees sexing ladies or girls

Among modern foraging societies, men hunt more than women, who mostly target relatively low-quality, reliable resources i. This difference has long been assumed to reflect human female reproductive constraints, particularly caring for and provisioning mates and offspring. Long-term studies of chimpanzees Pan troglodytes enable tests of hypotheses about the possible origins of human sex differences in hunting, prior to pair-bonding and regular provisioning. Relative to males, females had low hunting rates in all three communities, even where they encountered red colobus monkeys the primary prey of chimpanzees as often as males did. There was no evidence that clinging offspring hampered female hunting.

When it comes to sex, quantity rather than quality is the top priority for our closest relatives in the animal kingdom. Among female chimpanzees, having as many partners as possible is more important than finding the strongest mate, according to researchers. They found that female chimps used sex to win the protection of males against aggressive group members. According to the study, females produced more mating calls when high-ranking males are around. However, they stayed quiet about their sexual activity when high-ranking females were nearby to avoid competition. For years scientists have tried to understand the meaning of the mating calls made by female chimps.

Though chimpanzees and humans share about 99 percent of the same DNA, numerous physical and behavioral traits separate us from our closest living relatives. But are we different even when it comes to sex? Just how do chimpanzees "do it?

These apes supposedly have inordinate amounts of sex and never fight. Can this appealing story really be true? Reputation: Bonobos are miniature, sharing, caring chimps, living in hippie communes with no aggression and lots of sex. Reality: Not really. Bonobos are roughly the same size as chimps, can be aggressive and use sex in very specific contexts.