Lost Native American Ancestor Revealed in Ancient Child’s DNA

Study of 11,500-year-old bones offer surprising clues about the origins of New World genetic diversity.

A baby girl who lived some 11,500 years ago survived for just six weeks in the harsh climate of central Alaska, but her brief life is providing a surprising and challenging wealth of information to modern researchers.

Her genome is the oldest-yet complete genetic profile of a New World human. But if that isn’t enough, her genes also reveal the existence of a previously unknown population of people who are related to—but older and genetically distinct from— modern Native Americans.

This new information helps sketch in more details about how, when, and where the ancestors of all Native Americans became a distinct group, and how they may have dispersed into and throughout the New World.

The baby’s DNA showed that she belonged to

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