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.

(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 ...

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 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 ...

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 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 ...

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 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 ...

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 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, raised kittens and once playfully tried on the glasses of the late actor Robin Williams, has died. She was 46. The Gorilla Foundation ...