It did not tell us what happened to the Ancient Beringian lineage — whether it went extinct, was absorbed through admixture, or persists in diluted form in modern populations.

It did not tell us anything about the cultural practices, language, or specific identity of the people USR1 belonged to.

The story of who the first Americans were is still being told.

USR1 is one of its most important chapters — one of the most informative, one of the most carefully analyzed, one of the most honestly presented in terms of what the data can and cannot establish.

And underneath all of it — underneath the genomes and the demographic models and the population trees and the route debates and the standstill hypotheses — is a baby.