Ancient teeth show humans moved into rainforests earlier than previously thought

March 13, 2015 3:39 AM

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Ancient teeth show humans moved into rainforests earlier than previously thought

20,000 year old teeth discovered in Sri Lanka show evidence that early humans moved into the rainforests much earlier than scientists previously thought. A study published on Thursday in Science journal explains that the teeth of 26 ancient human remains were excavated and examined, showing signs of rainforests habitation. Tooth enamel samples were taken with a diamond-tipped drill and examined under a mass spectrometer. In every single sample, scientists found evidence indicating that the diets of these humans when they were alive consisted almost completely of food found in the rainforest.

A University of Oxford Archeologist, Patrick Roberts, said, “Humans have been manipulating and living within dynamic rainforest environments for at least 20,000 years and probably even longer…The lifestyle, as we can see, was dedicated rainforest subsistence.” Before this most recent discovery, ther...

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