The more we try to understand chimpanzees, one of our closest relatives, the more we find ourselves humbled by the richness ...

Tonia Haddix, who ran a Jefferson County primate facility and was featured in an HBO documentary called “Chimp Crazy,” was held in contempt of court.

Chimpanzees are losing their homes, but it’s not too late. World chimpanzee day shows us why they matter and how we can help.