Ancient teeth reveal early human entry into rainforests

March 12, 2015 7:57 PM

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Ancient teeth reveal early human entry into rainforests

WASHINGTON (Reuters) - People adapted to living in tropical rainforests thousands of years earlier than previously known, according to scientists who found crucial evidence in 20,000-year-old fossilized human teeth discovered in Sri Lanka.

The researchers said there has been a debate over when our species first began living in rainforests, with some experts arguing such habitats may have been too daunting for early human hunter-gathers.

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