麻豆约拍

Where did first nation Americans come from? A 10,000-year-old skeleton discovered in Mexico has challenged the traditional theory that humans first entered the American continents as a single population.

An analysis of the remains, named Chan Hol 3, showed they belonged to a 30-year-old woman. They displayed significant differences to other skeletons found in the region, suggesting at least two distinct Paleoindian populations.

Dr Silvia Gonzalez is professor of quaternary geology and geoarchaeology at Liverpool John Moores University, and one of the study authors.

(Photo: Prof Silvia Gonzalez (L) and Dr Sam Rennie (R) examine the Chan Hol 3 skull. Credit: Jeronimo Aviles Olgui/Plos One/PA Wire)