Koko, the gorilla whose apparent aptitude for sign language endeared her to fans around the world, died in her sleep on Tuesday morning, according to the Gorilla Foundation, which oversaw her care.

Koko, a beloved gorilla that learned to communicate with humans and then stole their hearts, has died. The Gorilla Foundation said the 46-year-old celebrity ape - a western lowland gorilla - died in ...

Native to Africa, where they live in tropical forests, marshes, mountains, and upland habitats, gorillas are powerful primates that are closely related to humans. Gorillas are the largest extant ...