Language is unique to humans, but did it evolve gradually or suddenly, from a chance mutation or as a consequence of a larger brain? Two studies now suggest that language may have arisen gradually from precursors in other primates.
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Ghazanfar, A. Language evolution: neural differences that make a difference. Nat Neurosci 11, 382–384 (2008). https://doi.org/10.1038/nn0408-382
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DOI: https://doi.org/10.1038/nn0408-382