Did Ancient Humans Hunt a Giant Sloth in the Southwest United States? Archeologists use Animal Tracking to Find Out.: 2-GiantSlothWide

The map shows sloth and human tracks as well as track density across the whole site (inset). Note the non-linear sloth trackways and sudden changes of direction. “Flailing circles” occur only in association with human tracks. Diagram from Science Advances 25 Apr 2018: Vol. 4, no. 4, eaar7621 DOI: 10.1126/sciadv.aar7621