Koko gained public attention as the subject of two National Geographic cover stories and, in 1985, the best-selling children's picture book, Koko's Kitten. Koko became the world's most famous representative of her critically endangered species.
Koko the Gorilla died unexpectedly at the Gorilla Foundation's preserve in 2018, but the 46-year-old primate had a final message for her fans.
Koko is perhaps the best known gorilla in the world because of her sign language and artistic abilities, her relationships with kittens, and a considerable amount of worldwide media since she was a baby.
Koko the gorilla, who became famous for her use of sign language, died in her sleep at age 46 in her California preserve on .
Koko, the beloved gorilla best known for mastering sign language over the years, died in her sleep at age 46.
Koko, the western lowland gorilla that died in her sleep Tuesday at age 46, was renowned for her emotional depth and ability to communicate in sign language.
Koko, the western lowland gorilla who died at the age of 46, changed the way we think about animals — and that's one of her biggest legacies
When Koko the gorilla died in 2018 at the age of 46, the world lost a critical window not only into the minds of our animal siblings but our mutual ties to our planet.
Koko, the western lowland gorilla who learned sign language and became a pop-culture phenomenon, has died at the age of 46, the group that cared for her announced Thursday.