Chalk up another mark of chimpanzee intelligence--they not only use tools for gathering food, but also to improve their sex lives. The chimps don't have to duck into a sex shop to gather their erotic ...

Pioneering primatologist Jane Goodall has died at age 91. These are her five biggest contributions to how we understand about our closest living relatives. When you purchase through links on our site, ...

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 ...