Evidence from dirty teeth: Ancient Peruvians ate well

Starch grains preserved on human teeth reveal that ancient Peruvians ate a variety of cultivated crops including squash, beans, peanuts and the fruit of cultivated pacay trees.

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<p><a href="http://www.physorg.com/news147374126.html">Evidence from dirty teeth: Ancient Peruvians ate well</a></p> <p>Starch grains preserved on human teeth reveal that ancient Peruvians ate a variety of cultivated crops including squash, beans, peanuts and the fruit of cultivated pacay trees. </p>