What Did Human Ancestors Eat?
(Cicero Moraes via Wkimedia Commons)ST. LOUIS, MISSOURI—According to a statement released by Washington University in St. Louis, a study of the wear and tear caused by food particles on tooth enamel suggests human ancestors may have eaten more hard plant foods than previously thought. Biological anthropologist Adam van Casteren explained that early hominins such as Australopiths had very large teeth and jaws, and probably also had huge chewing muscles that would have allowed them to crush nuts, seeds, tubers, and woody plant material. Scientists predicted such a diet would leave microscopic pits on fossilized hominin teeth, but most known...
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