Chantek, a 39-year-old male orangutan known around the world for his ability to use American Sign Language to communicate, has died at Zoo Atlanta. The zoo announced it was treating Chantek for ...
Editor's Note: The original version of this story misstated the journal that Lameira's team's findings were published in; they were published in Nature Ecology ...
Chiara De Gregorio does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...
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