In other cases, the association is more ambiguous — reflecting the use of the same cave by both humans and animals at different times, without necessarily implying direct interaction between them.

The Trail Creek Caves’ combined faunal and archaeological record — including both Ice Age animal remains and the human tooth that has been the focus of this account — places the site within this broader regional context of cave-site evidence for the human occupation of Beringia during and after the Pleistocene.

The First Americans and Why the Question Is Still Open

The Trail Creek child’s story is set within a much larger debate that has occupied archaeologists and geneticists for decades and that shows no sign of being definitively resolved in the near future: when did people first arrive in the Americas, and what was the nature of that founding event?

This question has been at the center of North American archaeology since the recognition, in the early twentieth century, that the Americas had been inhabited for a very long time before European contact.