Register now for FREE. She adds, "Previous studies might not have found a relationship between mating success and meat sharing because they focused on short-term exchanges; or perhaps because in those groups access to females was driven by male coercion so females rarely chose their mating partners. Anatomical features on male non-human primates may increase stimulation during sex, but at a price. Newsletters Sign up for the latest news and to win free tickets to events. Related Stories Chimps outsmart uni studentsScience Online, 04 Dec Chimps have the jump on us in evolution Early humans had sex with chimps.
This Week's Issue Print Archives.
Chimps have experimented with sex more than humans
However, there has been little evidence in both humans and chimpanzees to support it. By ncbi rofl January 21, 7: These spines, still present on chimpanzee males, "have been proposed to do many different things, including increasing stimulation in males, increasing stimulation in females, removing copulatory plugs left by other males or even inflicting minor damage during mating so that females are less receptive to sexual intercourse with other males. Discover's Newsletter Sign up to get the latest science news delivered weekly right to your inbox! She was actually born at the Gladys Porter Zoo in Texas, hence her first name. Blow as well as pull: Michael Plavcan at the University of Arkansas agrees that the study is consistent with the idea that chimps evolved a unique mating system since their lineage split from ours.