You Are What You Eat? Maybe Not for Ancient Man

Careful analysis of microscopic abrasions on the teeth of early human "cousins" by resesarchers at Johns Hopkins, University of Arkansas, Cambridge University and Stony Brook University show that although equipped with thick enamel, large jaws and powerful chewing muscles, this ancient species may not have eaten the nuts, seeds or roots their anatomy suggests. Instead, the tooth wear suggests a more general diet, as reported in next week's Public Library of Science One.

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