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 ...

Sound doesn’t fossilize. Language doesn’t either. Even when writing systems have developed, they’ve represented full-fledged and functional languages. Rather than preserving the first baby steps ...

A baboon's grunt is different from its bark, and new research has found that the primates use five distinct vowel-like soundsthat were previously thought to be unique to modern humans. The ability to ...

Does [a:] as in 'baa' sound more green or more red? And is [i:] as in 'beet' light or dark in color? Even though we perceive speech and color are perceived with different sensory organs, nearly ...