Ancient Skeletons In Brazil Carried A Genetic Signal Scientists Did Not Expect — And It Complicated The Story Of The First Americans
It was wrong.
The Solutrean hypothesis was a simple story — Ice Age Europeans had crossed the Atlantic and been the first Americans.
It was not supported by the evidence.
The two-population model was a simple story — two distinct groups, with different morphological profiles, had settled the Americas in sequence.
The ancient DNA evidence showed it was more complicated than that.
Population Y is, in its way, a warning against simple stories about complex processes.
The ancestral history of any human population is never a straight line from a single point of origin to the present.