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 — known for her ability to communicate with humans using over 2,000 hand signals — died Tuesday in her sleep in Woodside, California. She was 46.

Koko, a western lowland gorilla known for her impressive sign language skills, died in her sleep Tuesday morning at the age of 46, The Gorilla Foundation has reported.

Koko was among a handful of primates who could communicate using sign language; others included Washoe, a female chimpanzee in Washington state, and Chantek, a male orangutan in Atlanta.

Koko, a beloved gorilla who learned to communicate with humans and then stole their hearts, has died in her sleep at age 46.

On Thursday, The Gorilla Foundation revealed that Koko, one of the few primates able to communicate using sign language, had passed away in her sleep.

Koko, the gorilla who became famous for her sign language skills, died in her sleep at age 46, the Gorilla Foundation reported.

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.

Koko, a beloved gorilla that learned to communicate with humans and then stole their hearts, has died. The Gorilla Foundation said the 46-year-old celebrity ...

Koko, the gorilla that learned to communicate using sign language, has died Koko, the gorilla who converses in sign language, admires her new kitten on April 2, 1985.