In southern Peru, a 1.5-kilometre stretch of land dotted with thousands of carefully aligned holes has puzzled researchers ...
Early aerial photographs first highlighted the scale of Peru’s Monte Sierpe monument. Almost a century later, scientists have ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Guowei (Wayne) Tu, University of Michigan and Evgueni Filipov, University of Michigan ...
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