Marmoset Callings May Give Clues to Evolution of Human Language

Baby common marmosets, small primates found in the forests of northeastern Brazil, must learn to take turns when calling, just as human infants learn not to interrupt. Even though the marmosets don’t have language, they do exchange calls. And the discovery that a young marmoset learns to wait for another marmoset to finish its call before uttering its own sound may help us better understand the origins of human language, scientists report in the Proceedings of the Royal Society B.

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