PARIS: A gorilla called Koko – who became widely-known for her ability to learn sign language – may be capable of speech, U.S. researchers say.
While most traditional findings highlight the perception that humans are the only primates able to speak, a team at the University of Wisconsin-Madison say that gorillas may have the cognitive capacity and breathing control to make sounds beyond grunts and other instinctive noises.
By analyzing hours of footage taken of Koko, who has spent more than 40 years living immersed with humans, the researchers say that they have found her “performing nine different, voluntary behaviors that required control over her vocalization and breathing.”
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