WOODSIDE, Calif. (CBS NEWS) - 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 ...

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 was born 46 years ago at the San Francisco Zoo. She was taught sign language by Dr. Francine Patterson starting in 1974, The Associated Press reported. She had a vocabulary of about 1,000 words ...

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 ...

The beloved gorilla Koko, famous for being fluent in sign language, passed away in her sleep Tuesday in Woodside, California. The western lowland gorilla was 46. Koko was born at the San Francisco Zoo ...

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 ...

The gorilla is famous for being able to express her emotions through sign language, even mourning the death of celebrity friend Robin Williams Kelli Bender is the Pets Editor at PEOPLE. She has been ...

WOODSIDE, Calif. (CBSDFW.COM/AP) — 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 ...

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 ...