BARCELONA, SPAIN - The ancestry of the first Americans may be more complex than anthropologists thought.

Researchers studied 33 ancient skulls excavated in Mexico. They say unlike other early American remains, the artifacts resemble those of people from south Asia and the southern Pacific Rim.


Specimen from Baja California Sur
Courtesy: Rolando González-José

Rolando González-José of the University of Barcelona and his colleagues took detailed measurements of skulls from an extinct tribe.

The skulls were excavated at the tip of the Baja California Peninsula in Mexico. The study appears in Thursday's issue of the journal Nature.

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