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, ...

Chimpanzees are among the most intelligent animals on Earth - and also some of the most complex. They use tools, communicate, and even organize coordinated group hunts. But their behavior can also ...

Just like any self-respecting plumber has a tool for any occasion, chimpanzees in the Congo have developed specialized "tool kits" to help them forage for ants. That's the conclusion of new research ...