Chimpanzees have long fascinated researchers, not only for their unique behaviors, but also for how they are similar or (not) to humans. What’s been particularly interesting to field researchers is ...

Chimps may revise their beliefs in surprisingly human-like ways. Experiments showed they switched choices when presented with stronger clues, demonstrating flexible reasoning. Computational modeling ...

How can we compare human and machine intelligence when we can’t decide which species – cats or dogs — is more intelligent?

The government started breeding chimpanzees for invasive biomedical research in the 1980s — and now, the fate of more than 250 of these primates is uncertain. In 1995, the government stopped breeding ...

New research suggests chimpanzees can rethink their choices when new evidence emerges, a hallmark of human-like reasoning.