Flexible vocalizations in wild bonobos show similarities to development of human speech

From an early age, human infants are able to produce vocalizations in a wide range of emotional states and situations -- an ability felt to be one of the factors required for the development of language. Researchers have found that wild bonobos (our closest living relatives) are able to vocalize in a similar manner. Their findings challenge how we think about the evolution of communication and potentially move the dividing line between humans and other apes.

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