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?

Famed primatologist Jane Goodall was renowned for her groundbreaking work with chimpanzees but dedicated her life to helping all wild animals — a passion that lasted until her death this week while on ...

By John Cannon Chimpanzees appear to be the biggest daredevils when they’re infants. Humans tend to take more chances and put themselves in the most danger in adolescence, so the expectation has been ...

In the forests of Sierra Leone, Bala Amarasekaran has spent three decades building a sanctuary, and a life, around orphaned chimpanzees whom he calls family. What began with the rescue of a single ...

She spent decades promoting humanitarian causes and the need to protect the natural world, and tried to balance the grim realities of the climate crisis with hope for the future, admirers said. Those ...