Editor's Note: This story was published on Aug. 13, 2014. Koko died in her sleep at the foundation's preserve in California's Santa Cruz mountains on Tuesday, June 19, 2018. Robin Williams brought joy ...

Koko the gorilla who mastered sign language, raised kittens and once playfully tried on the glasses of the late actor Robin Williams, has died. She was 46. The Gorilla Foundation says the western ...

WOODSIDE, Calif. -- The Gorilla Foundation, based out of Woodside, is among those mourning the loss of Robin Williams. The foundation said the actor and Koko the gorilla shared a special bond. The two ...

Koko the gorilla, the simian who showed the world that they could communicate has died. The Gorilla Foundation made the announcement. Koko was born 46 years ago at the San Francisco Zoo. She was ...

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.