Human footprints dated back 23,000 years were found in New Mexico and could indicate when humans arrived on the continent. Researchers reported on Thursday that they discovered fossilized footprints that show humans were walking across North America a long time ago. The footprints were originally found in 2009 at a dry lake bed in White Sands National Park.
Scientists found a seed stuck in the footprint and the U.S Geological Survey recently analyzed it to determine their approximate age. The results ranged from 22,800 and 21,130 years ago. This finding could help scientists answer the intriguing question of when did people first arrive in the Americas, after dispersing from Africa and Asia?
Most scientists believed ancient migration came in the form of now-submerged land bridges that connected Asia to Alaska. They have found evidence of stone tools, fossil bones, and genetic analysis to support this hypothesis. Other researchers have estimated the arrival of humans in the Americas to be 13,000 to 26,000 years ago.
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