Archaeologists Discover Evidence of 'Lost' Civilization in the Amazon
Archaeologists have uncovered hundreds of vast earthworks in the Amazon rainforest, which they say are evidence of a 'lost civilization' that flourished nearly 2,000 years ago. Researchers believe the geometrically patterned structures, known as geoglyphs, were built by an advanced pre-colonial society, known as the Aquiry, between 600BC and AD850. The scientists used cutting-edge airborne laser scanning technology to find hundreds of previously unknown earthworks, suggesting that at its peak, the civilization may have numbered 1.25 to 3 million people. 
