Search for clues may explain collapse of ancient city in Mexico

Built more than a thousand years before the Aztec arrived in central Mexico, Teotihuacan was once one of the largest cities in the world. Its stone temples, comparable in size to Egypt's pyramids, still draw fascinated visitors, ...

Who trusts gene-edited foods? New study gauges public acceptance

Through CRISPR and other gene-editing technologies, researchers and developers are poised to bring dozens—if not hundreds—of new products to grocery stores: mushrooms with longer shelf lives, drought-resistant corn and ...

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