Deforestation of the Amazon uncovers Geoglyphs

It is believed that the Geoglyphs are reveling the ancient "urban" centers of the Amazon that peaked between 1200 and 1600 A.D. Disease, warfare and enslavement at the hands of European settlers diminished native populations. Their villages, road networks, and elaborate plazas were reclaimed by the forest, removing all traces of their existence until now.

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