The Yana children are one node in that deep family tree.

Their milk teeth, preserved in the permafrost, connect the family tree to a moment 31,000 years ago when the world was cold and dark and the genetic landscape of northeastern Asia was being shaped by population movements whose ultimate consequences would reach across the Pacific and down two continents.

The Returning Story — Back To The Canyon, Back To The Teeth

There is a specific image that recurs throughout the coverage of the Yana discovery, and it is worth dwelling on: the photograph of researcher Alla Mashezerskaya mapping the artifacts in the area where the two teeth were found.