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Published online 28 June 2007 | Nature | doi:10.1038/news070625-11
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Ancient seeds reveal Andean crops
American and Old World horticulture began about the same time.
Archaeologists have found some of the oldest evidence of cultivated food plants in South America. The squash seeds, peanuts hulls, cotton bolls and quinoa-like seeds add to evidence that the dawn of agriculture in the New World was earlier and more protracted than previously thought.
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