By Colin Barras. Humans, meanwhile, show a variety of mating behaviours but often form monogamous couples. Michael Jensen-Seaman and Scott Hergenrother at Duquesne University in Pennsylvania think that it is the chimps — not humans — that have experimented with new sexual behaviours since our lineages diverged. But did male chimps inherit their mating plugs from the last common ancestor they shared with us or did they evolve it later?
Do bonobos really spend all their time having sex?
Female chimpanzees 'sell' sex for fruit - Telegraph
Female chimpanzees are "selling" sex to the males that gather the most fruit, according to new research. Behavioural psychologists found that female chimps mate with the males that give them the most fruit, while male chimps steal "desirable" fruits such as papaya from farms and orchards in a bid to woo potential mates. Oranges, pineapples and maize are among the most sought after crops, with bananas proving far less popular. The scientists also discovered that the chimp that gathered the most fruit in the "food-for-sex" trade received more grooming from females than the group's alpha male.
All rights reserved. Although chimps are found in 21 African nations, conservationists rank them as endangered. Female chimps mate promiscuously so that many males think they might be a baby's father; that discourages infanticide. When male chimpanzees seek sex but female chimps are more interested in food, the result is a passionate clash of appetites.
The human ego has never been quite the same since the day in that Jane Goodall observed a chimpanzee feasting on termites near Lake Tanganyika. After carefully trimming a blade of grass, the chimpanzee poked it into a passage in the termite mound to extract his meal. No longer could humans claim to be the only tool-making species. The deflating news was summarized by Ms. In a 50th anniversary essay in the journal Science, the primatologist William C.