The Ancient Farms of North America

The Ancient Farms of North America
Dan Kraker /Minnesota Public Radio via AP

Adventurers and archaeologists have spent centuries searching for lost cities in the Americas. But over the past decade, they've started finding something else: lost farms.

Over 2,000 years ago in North America, indigenous people domesticated plants that are now part of our everyday diets, such as squashes and sunflowers. But they also bred crops that have since returned to the wild.

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