structural:summarization, stylistic:style_transfer, information:filtering
Autosomal DNA

According to an autosomal genetic study from 2012, Indigenous Americans descend from at least three main migrant waves from Northern Asia. Most of it is traced back to a single ancestral population, called 'First Americans'. However, those who speak Inuit languages from the Arctic inherited almost half of their ancestry from a second East Asian migrant wave, and those who speak Na-Dene inherited a tenth of their ancestry from a third migrant wave. The initial settling of the Americas was followed by a rapid expansion southwards along the west coast, with little gene flow later, especially in South America. One exception to this are the Chibcha speakers of Colombia, whose ancestry comes from both North and South America.