A study reveals chimpanzees exhibit evidence-based reasoning, challenging the belief that rational thought is uniquely human.

Chimpanzees change their choices when stronger clues appear and stay the course when only weaker hints came in.

Source: Ruben van Kuik, via Wikimedia Commons. How do scientists study the evolution of human culture and cognition? There aren’t any early hominins around—but there are chimpanzees, our closest ...

The more we try to understand chimpanzees, one of our closest relatives, the more we find ourselves humbled by the richness and complexity of their lives — and of their intelligence. Today, on World ...

Remember the film where a growling chimpanzee sinks its teeth into one of the activists trying to save it, marking them out ...