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Ancient footprints could be oldest traces of humans in the Americas

Children left tracks in New Mexico around 22,500 years ago — thousands of years before most scientists thought humans settled in North America.
By
  1. Ewen Callaway
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White Sands National Park, in southern New Mexico, is known for chalk-coloured dunes that stretch for hundreds of square kilometres. But at the height of the last Ice Age, the region was wetter and grassier. Mammoths, giant sloths and other animals walked the muddy shores of shallow lakes that grew and shrank with the seasons. And they had company.

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Nature 597, 601-602 (2021)

doi: https://doi.org/10.1038/d41586-021-02597-1

References

  1. Bennett, M. R. et al. Science https://doi.org/10.1126/science.abg7586 (2021).

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  3. Bustos, D. et al. Sci. Adv. 4, eaar7621 (2018).

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