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.
chimp sex girl move
Female competition in chimpanzees
Female chimpanzees exhibit exceptionally slow rates of reproduction and raise their offspring without direct paternal care. Therefore, their reproductive success depends critically on long-term access to high-quality food resources over a long lifespan. Chimpanzee communities contain multiple adult males, multiple adult females and their offspring. Because males are philopatric and jointly defend the community range while most females transfer to new communities before breeding, adult females are typically surrounded by unrelated competitors. Communities are fission—fusion societies in which individuals spend time alone or in fluid subgroups, whose size depends mostly on the abundance and distribution of food. To varying extents in different populations, females avoid direct competition by foraging alone or in small groups in distinct, but overlapping core areas within the community range to which they show high fidelity. Although rates of aggression are low, females compete for space and access to food.
When It Comes to Sex, Chimps Need Help, Too
While young females perfected the art of termite fishing, young males spent more time playing and swinging around--behaviors that may help them in typically male adult activities like hunting and struggling for dominance, even though they see little of these activities while they are with their mothers. Mothers showed no preference for allowing either male or female offspring to observe them, yet sons and daughters did different things. And it makes perfect sense for chimps.