Before you submit an error, please consult our Video Help page. Read, Write, ROAR! is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android ...
Listen closely to those baboon calls. They may tell you a thing or two about human speech. Scientists who studied baboons’ wahoos, yaks, barks and other vocalizations have found evidence of five vowel ...
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