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Press Release 08-070 - Video
Peter Ungar describes how pits and scratches on teeth leave clues about early human ancestor diet.

Peter Ungar, professor of anthropology at the University of Arkansas, describes how microscopic pits and scratches on teeth are signs of eating hard foods like nuts or tough foods like leaves. The pits and scratches are clues to the evolution of early human ancestor diet.

Credit: National Science Foundation

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