Ancient footprints could be oldest traces of humans in the Americas "Ancient footprints could be oldest traces of humans in the Americas" https://www.nature.com/articles/d41586-021-02597-1 |
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Ancient footprints could be oldest traces of humans in the Americas "Ancient footprints could be oldest traces of humans in the Americas" https://www.nature.com/articles/d41586-021-02597-1 |