Kathleen Springer and Jeff Pigati, researchers with the United States Geological Survey, who are analyzing footprints that indicate humans inhabited North America much earlier than scientists thought.
Kathleen Springer

When did humans actually arrive in the Americas?

For decades, archeologists have debated when humans first set foot in North America. Now, ancient footprints discovered in New Mexico are offering some clues to when people first inhabited the continent we call home, which could alter the widely accepted timeline for when humans first lived in North America by thousands of years. This segment originally aired September 30, 2021.

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