Koko, gorilla, Sign language. 大猩猩, 手語

Talented: Koko the Gorilla has been learning sign language since she was a year old

Video shows New Year message from Koko the talking gorilla | Daily Mail Online
Read more: http://www.dailymail.co.uk/news/article-3381459/Man-stupid-protect-Earth-New-Year-message-Koko-talking-gorilla-urges-humanity-stop-destroying-planet.html#ixzz3wB6pLDng
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The Voice of Nature - Koko at the COP21
https://coub.com/view/9jofl

Man stupid, fix Earth! : Gorilla uses sign language to be the voice of nature - Yahoo7

https://au.news.yahoo.com/a/30475065/man-stupid-fix-earth-gorilla-uses-sign-language-to-be-the-voice-of-nature/

Koko the gorilla is the voice of Nature at COP21 - YouTube
https://www.youtube.com/watch?v=FVuNTiqHys0

大猩猩用手語發表演說 盼人類快救地球 - 國際 - 自由時報電子報