Chimpanzees naturally ingest surprising amounts of alcohol from ripe, fermenting fruit. Careful measurements show that their typical fruit diet can equal one to two human drinks each day. This ...

Chimpanzees in the wild are performing what looks like first aid on each other's wounds, and primatologists are only just beginning to formally catalogue the behavior. In the forests of Africa, ...

Onesmas Ainebyona tracks chimpanzees in a Ugandan rainforest. He has built trust with a chimp leader named Jean. It took ...

Urban expansion and hunting have pushed chimpanzees, humanity's closest relative in the animal kingdom, into shrinking islets of wildness, top experts said Tuesday after a three-day meeting in Germany ...

In the forests of Uganda, wild chimpanzees have been caught on camera doing something startlingly human: treating each other’s wounds with leaves and chewed-up plants. In a behavior that hints at ...

Wild chimpanzees in the forests of Uganda and Côte d’Ivoire consume roughly two boozy beverages’ worth of overripe, fermented fruit a day, according to a new study. Chimps glug down 14 grams of ...

A chimpanzee eating figs at Ngogo in Uganda's Kibale National Park in 2018. UC Berkeley biologists measured the ethanol content of many types of fruit that chimps routinely consume and found that they ...

Wild chimpanzees show reduced participation and performance in their tool-use behaviours as they experience old age, according to long-term video observations. The study, published today in eLife, ...

Young chimpanzees learn their communication style from their mother and maternal relatives, but show little similarity to the communication behavior of their father and paternal relatives, according ...

When I talk about my time in the field, and how wonderful and fascinating chimpanzees are, one thing that often surprises people is that chimps eat meat. Listeners are truly shocked—"Wait what?" they ...