The relative proportions of these components varied across the different founding lineages that gave rise to the different branches of Native American peoples.

Modern Native Americans carry this ancient complexity in their genomes.

When genetic researchers analyze the genomes of contemporary Indigenous peoples of the Americas, they find the signatures of these various ancient contributions — not in any simple or directly traceable way, but as statistical patterns in the data that become interpretable when compared against the expanding database of ancient genomes.

The Yana discovery is one data point in this complex picture.

It identified a population that was previously invisible to genetic analysis.