Monkeys have vocal tools, but not brains, to talk like humans

Videos of grunting, cooing show macaques could make key vowel, consonant sounds

Macaque monkeys

THWARTED SPEAKER  Macaque monkeys have vocal tracts capable of producing enough vowel sounds to speak English and many other languages, a new study finds. But the monkeys’ brains aren’t up to the task of enabling their airways to articulate words, researchers say.

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Macaque monkeys would be quite talkative if only their brains cooperated with their airways, a new study suggests.