Sentences with phrase «observing wild chimpanzees»

That study comes from behavioral ecologist Christophe Boesch of the Max Planck Institute for Evolutionary Anthropology, who spent years observing wild chimpanzees in the Taï National Park in Côte d'Ivoire.

So say researchers who have observed wild chimpanzees throw back fermented tree sap.

Not exact matches

Little is known about chimpanzee birth in the wild because only five births have ever been observed, says Hitonaru Nishie at Kyoto University in Japan.

The «Four - Year War» from 1974 — 1978, as Goodall later described it, represents the only civil war ever observed in wild chimpanzees.