The transition from the ANS-dominated northeastern Siberia of 31,000 years ago to the Ancient Paleo-Siberian world of 10,000 years ago — a world in which the ANS genetic signature is present but diluted — presumably involved population movements, admixture events, and demographic changes that have not yet been documented in ancient DNA terms because the relevant ancient individuals have not yet been found and sequenced.

These are the frontier questions of a young field.

The pace of ancient genome sequencing has been accelerating rapidly as methods improve and costs fall.

Each year brings new ancient human genomes from regions and periods that were previously undocumented.

Each new genome has the potential to add detail, resolve uncertainties, or reveal entirely new populations — as the Yana teeth revealed the Ancient North Siberians.

The story of the children at Yana is not finished.