In the 1960s and 70s, a group of chimpanzees astonished the world by learning sign language. Only two remain and one question still lingers—was it worth it?

Ever find yourself people-watching in a cafe, or tuning into reality TV just to see who’s arguing with who? You’re not alone - and it turns out, you might have more in common with chimpanzees than you ...

Every year on July 14, people around the world celebrate World Chimpanzee Day. This special day commemorates the anniversary of Dr. Jane Goodall's first visit to study wild chimpanzees in Tanzania in ...

A young chimp hangs from a branch with its mother's hand nearby at the Ngogo Chimpanzee Project at Kibale National Park in Uganda. ANN ARBOR—If you've ever spent time with a toddler, you might be ...

LOS ANGELES (AP) — Some privileged nature footage from the African rain forest is dishonored by deeply silly narration in "Chimpanzee," which follows a particular group of chimps in the Ivory Coast's ...