Humans settled in North America about 37,000 years ago, study says - USA TODAY

Common belief was that humans first settled in North America about 16,000 years ago. New research suggests that might not be true.

• Mammoth remains found in 2013 in New Mexico suggest humans settled in North America about 37,000 years ago.
• The discovery means humans might have been in North America 20,000 years be… [+4951 chars]
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