Koko, the western lowland gorilla who learned sign language and became a pop-culture phenomenon, died Thursday morning at the age of 46. The Gorilla Foundation, headed by Dr. Francine “Penny” ...

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 ...

Koko, the western lowland gorilla who learned sign language, died on Thursday. Koko, the western lowland gorilla who learned sign language and became a pop-culture phenomenon, has died at the age of ...

Koko, the gorilla who mastered sign language, has died. The Gorilla Foundation says the 46-year-old western lowland gorilla died in its sleep at the foundation’s preserve in California’s Sana Cruz ...

Koko the gorilla, who has died at the age of 46, was famed for her communication skills and her mastery of sign language. Taught by animal psychologist Francine "Penny" Patterson and others since the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Koko, the gorilla who mastered sign language ...

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. (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 passed away Tuesday morning in her sleep at the age of 46. She was known for her extraordinary mastery of sign language. Koko was born at the San Francisco Zoo and ...

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 ...