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, 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 ape - a western lowland gorilla - died in ...
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A gorilla once used sign language to express affection
A gorilla using sign language to communicate affection with its caretaker.
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