Thomas R. Sawallis

Baboons make sounds, but how does it relate to human speech? Creative Wrights/Shutterstock.com

Examining how primates make vowel sounds pushes timeline for speech evolution back by 27 million years

Researchers say it’s time to finally discard a decades-old theory about the origins of human language – and revise the date when human ancestors likely were able to make certain speech noises.

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  • Location: Tuscaloosa, Alabama, U.S.
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