Trophy heads reveal secrets about ancient South American civilization

The Nasca civilization is perhaps best known for the drawings its people etched onto the desert floor in southwest Peru, a massive and mysterious body of simple and intricate works that span several hundred square miles.

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<p><a href="http://www.physorg.com/news150654634.html">Trophy heads reveal secrets about ancient South American civilization</a></p> <p>The Nasca civilization is perhaps best known for the drawings its people etched onto the desert floor in southwest Peru, a massive and mysterious body of simple and intricate works that span several hundred square miles.</p>