The Nature paper that reported the genome analysis was not published until 2018 — a gap of five to eight years between the recovery of the material and its most significant scientific result.

Those years were not empty.

They were filled with the work of consultation, analysis, reanalysis, comparison, and careful methodological development that made the 2018 result as robust as it was.

The ancient DNA laboratory work alone — extracting DNA from specimens that had spent eleven thousand years in frozen ground, building libraries of genomic fragments from degraded material, sequencing millions of short DNA reads and assembling them into something coherent, filtering contamination, correcting for chemical damage, and then running the computational analyses that placed USR1 in the family tree of ancient and modern human populations — took years of skilled work by teams of specialists.

The consultation with Athabascan communities — genuine, ongoing, not simply a box to check before proceeding — also required time.