24 ancient earthworks have been detected in the Amazon. There may be 10,000 more, scientists say
By Mindy Weisberger, CNN (CNN) — From deep in the Amazon rainforest, two dozen previously unknown pre-Columbian earthworks have been brought to light — and more than 10,000 such constructs may still be waiting to be discovered, according to new research. Across the Amazon basin, rainforests spread their leafy boughs over millions of kilometers. In
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