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Human Teeth Likely Shrank Due to Tool Use

Wisdom teeth may have shrunk during human evolution says a new finding that could lead to a new way of figuring out how closely related fossil species are to modern humans.

Published On 02/25/2016
12:57 PM EST
From the size of an isolated hominin tooth (in white), the sizes of the remaining primary teeth (in green) can be predicted using the inhibitory cascade. | Alistair Evans, Matt Skinner, Kierstin Catlett and E. Susanne Daly