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Source: Screenshot Koko's Tribute to Robin Williams

Koko, The Beloved Gorilla Who Learned Sign Language, Has Died At 46: Watch Some Of Her Best Moments

By Vanessa Nix Anthony

Late yesterday morning, The Gorilla Foundation announced on Twitter the passing of a much beloved gorilla, one that captured both the attention and the heart of people around the world for her thoughtful intellect and empathy. Best known for mastering sign language, Hanabi-ko or "Koko" as she was affectionately called, died on Wednesday in her sleep, at the age of 46.

As The Gorilla Foundation noted, Koko "touched the lives of millions as an ambassador for all gorillas and an icon for interspecies communication and empathy."

Take a look at the clips below from the many documentaries made of Koko during her lifetime. If social media reaction is any indication, her infectious spirit will be missed by many.