Watch Koko the Gorilla Use Sign Language in This 1981 Film | National Geographic

Watch Koko the signing gorilla in this clip from a 1981 National Geographic documentary. Koko died in her sleep on Tuesday, June 19, 2018. ➡ Subscribe: bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: bit.ly/NatGeoOfficialSite Facebook: bit.ly/FBNatGeo Twitter: bit.ly/NatGeoTwitter Instagram: bit.ly/NatGeoInsta Read more in "Why Koko the Gorilla Mattered" news.nationalgeographic.com/2018/06/gorillas-koko-… Watch Koko the Gorilla Use Sign Language in This 1981 Film | National Geographic    • Watch Koko the Gorilla Use Sign Langu...   National Geographic youtube.com/natgeo

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