Koko, the beloved gorilla who mastered sign language, has died. She was 46. “Koko — the gorilla known for her extraordinary mastery of sign language, and as the primary ambassador for her endangered ...

WOODSIDE, Calif. (CBS/AP)-- A beloved gorilla who rose to prominence by mastering sign language has died. Koko – a 46-year-old western lowland gorilla – died in her sleep at a preserve in California ...

WOODSIDE, Calif. — 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 ...

Koko, the gorilla known for mastering a unique form of sign language and for her intimate visits with celebrities like Robin Williams and Red Hot Chili Peppers bassist Flea, has died. The famous ...

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.-- Koko, the gorilla who mastered sign language, has died. The Gorilla Foundation says the 46-year-old western lowland gorilla died in her sleep at the foundation's preserve in ...

Koko, arguably the world’s most famous gorilla, has died at the age of 46. Known for her ability to communicate through sign language, Koko forever changed our conceptions of primate intelligence and ...

WOODSIDE, Calif. (AP) — 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 ...

WOODSIDE, Calif. — 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 ...

Koko, the thoughtful gorilla who captivated the world through her ability to use sign language and revealed an empathetic side to great apes, has died. She was 46. The western lowland gorilla passed ...

Koko the gorilla doted on her pet kitten as if it were her own child. To the amazement of her human handlers, she seemed able to capture the joys and annoyances of maternal love in strings of simple ...