Archeological findings in central and southern Patagonia indicate that highly mobile hunter–gatherers swiftly settled in the cold and treeless late‐Pleistocene steppes as early as 13 000 cal a BP. In southern Patagonia, the faunal assemblages from these initial sites have helped clarify taxonomic issues, explore the timing of megafaunal extinction, and reconstruct the paleoecological dynamics involving extinct and extant taxa...