Populations mixed.

The genetic signals that modern populations carry are not simple reflections of obvious geographic categories but are instead the accumulated results of thousands of years of movement, mixture, and demographic change.

The Mal’ta boy, at 24,000 years old, is from the deepest layers of this complex history.

His genome is a message from a world that predates the modern geographic distribution of human populations by many millennia — a message that tells us, in molecular terms, something about the ancestry of multiple continents.

The Companion Find At Buret’