Mysteries of 'Amazon Stonehenge' revealed

New research indicates that ancient people practised large-scale deforestation to make their mark within the Brazilian rainforest

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Amazonian earthworks in Fazenda Colorada

Ancient Amazon people cleared swathes of forest to build enormous earthworks similar to those at Stonehenge, researchers have discovered.

Deforestation has uncovered traces of more than 450 earthworks in the western state of Acre that were previously concealed by a dense canopy of trees.

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