Humans developed early affinity for rainforest, tooth fossils suggest

March 13, 2015 3:44 PM

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Really old teeth are the evidence of this early affinity for the rainforest. Researchers analyzed 26 sets of ancient human teeth fossils for carbon and oxygen isotopes. All of them, ranging in age from 20,000 to 3,000 years old, proved to have feasted on a diet provided by the bounty of the rainforest.

"This is the first study to directly test how much early human forest foragers depended on the rainforest for their diet," explained lead author Patrick Roberts, a doctoral student investigating early human adaptations at Oxford's Research Laboratory for Archaeology and the History of Art.

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