Apes may be closer to speaking than many scientists think

13 August 2015

Koko the gorilla is best known for a lifelong study to teach her a silent form of communication, American Sign Language. But some of the simple sounds she has learned may change the perception that humans are the only primates with the capacity for speech.
http://www.sciencedaily.com/releases/2015/08/150813171210.htm

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