Chimpanzees share more than 98% of human DNA, and decades of field research across Africa show their societies can be intensely violent. Long-term studies at sites like Gombe and Kibale document ...

Charla Nash arrived at Sandy Herold’s house as she usually did. They’d been close friends for years. Little did she know this visit would change her life forever. As soon as Nash stepped inside, ...

Chimpanzees are some of the smartest animals on the planet. However, chimpanzees can be very aggressive as well. As they share 98% of human DNA, it is not surprising that chimpanzee teeth are almost ...