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 ...

Koko, the thoughtful gorilla who captivated the world through her ability to use sign language and revealed an empathetic side to great apes, has died. She was 46. The western lowland gorilla passed ...

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 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 beloved gorilla who shocked the world with her mastery of sign language and ability to communicate with humans, died in her sleep at the age of 46, officials announced Thursday. The western ...

Koko, the western lowland gorilla who learned to speak sign language and had an affinity for kittens, died in her sleep Wednesday. She was 46. The Gorilla Foundation announced Koko’s death, saying she ...

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. As well as her communication ...

Koko the gorilla, the simian who showed the world that they could communicate has died. The Gorilla Foundation made the announcement. The Gorilla Foundation is sad to ...

Koko the gorilla, the simian who showed the world that they could communicate has died. The Gorilla Foundation made the announcement. Koko was born 46 years ago at the San Francisco Zoo. She was ...

Koko the gorilla, the simian who showed the world that they could communicate has died. The Gorilla Foundation made the announcement. Koko was born 46 years ago at the San Francisco Zoo. She was ...

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. Koko's ability to communicate and the ...