Chimpanzees at Uganda’s Ngamba Island Sanctuary can do what was once considered an exclusively human trait: form expectations on the basis of evidence, but revise them on learning new facts.

Chimpanzees (Pan troglodytes) are native to the forests and savannas of central and western Africa. These creatures are our closest living relatives and share approximately 98.8% of our DNA. Similar ...

A once large and peaceful group of chimpanzees in the western forests of Uganda has now split into two, causing a rare “civil war” among the primates.

One day in June 2015, primatologist Aaron Sandel was watching chimpanzees in Uganda’s Kibale National Park when he saw something that did not make sense. A small party of chimps from the Ngogo ...

When people talk to each other, their conversations usually include many fast twists. Humans do not naturally talk in Shakespearean soliloquies, but by regularly interrupting and wildly gesticulating.

You are never too old to play — a maxim that even adult chimpanzees seem to follow. Young chimpanzees are already known to get many benefits from playing. But it seems to also be more important among ...