(CNN) -- Koko, the gorilla who mastered sign language and showed the world what great apes can do, has died. She died Tuesday in her sleep at age 46, The Gorilla Foundation said in a statement. "Koko ...

Koko the gorilla, famous for learning how to speak using sign language with her human trainer, has died at the age of 46. The rest of this article is behind a paywall. Please sign in or subscribe to ...

WOODSIDE, Calif. (KGO) -- The world is remembering Koko, the famous gorilla who lived in the Bay Area. She died in her sleep Tuesday at the age of 46 at her home in the Santa Cruz Mountains. The ...

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 ...

Koko was 13 years old when she learned her beloved kitten, All Ball, died after being hit by a car. Visibly upset, the western lowland gorilla kept signing the words “sad, frown, cry, bad” and cried ...

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 ...

(CNN) -- Koko, the gorilla who mastered sign language and showed the world what great apes can do, has died. She died Tuesday in her sleep at age 46, The Gorilla Foundation said in a statement. "Koko ...

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 and became a pop-culture phenomenon, died Thursday morning at the age of 46. The Gorilla Foundation, headed by Dr. Francine “Penny” ...

Koko, the cat-loving gorilla who touched the world with her compassion, intelligence and mastery of sign language, has died. The western lowland gorilla died Tuesday in her sleep at age 46, the ...

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 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 for empathy, has died ...