Human footprints of around 23,000 years old found in New Mexico
Fossilised footprints discovered in New Mexico indicate that early humans were walking across North America around 23,000 years ago, researchers reported.
Researchers believe that at least some were made by children and teenagers who lived during the last ice age. They also found tracks left by mammoths, prehistoric wolves, and even giant sloths, which appear to have been approximately at the same time as the humans visited the lake.
The first footprints were found in a dry lake bed in White Sands National Park in 2009. Scientists at the U.S. Geological Survey recently analysed seeds stuck in the footprints to determine their approximate age, ranging from around 22,800 and 21,130 years ago.
This new study is the first to definitively confirm the unprecedented age of these footprints, a finding that has widespread implications for reconstructing the mysterious origins of humans on the North American continent.