Over the years, Koko's fame grew. She appeared on two covers of National Geographic—and even took one of the pictures herself. Fans also fell in love with the friendship Koko developed with her kitten ...

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 ...

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 ...

Millions are mourning a gorilla, and that’s a good sign for humanity. Koko, a western lowland gorilla, died in her sleep at age 46 this week. Koko started learning a version of American Sign Language ...

Wednesday night, the BBC documentary Koko: The Gorilla Who Talks premiered on U.S. TV. The program tells the story of how Koko, age 44, one of two gorillas living at The Gorilla Foundation in Woodside ...

This gorilla knows her way around a bass guitar. Koko the gorilla was quick to show her musical side when she got a visit from Flea, the bassist from Red Hot Chili Peppers. Once she saw Flea pick at ...

SAN FRANCISCO (AP) — Koko the gorilla, whose remarkable sign-language ability and motherly attachment to pet cats helped change the world’s views about the intelligence of animals and their capacity ...