structural:expansion, quality:corruption, linguistic:voice_change, structural:summarization
Autosomal DNA

A study published in the Nature journal in 2018 concluded that Indigenous Americans descended from a single founding population which initially divided from East Asians about ~36,000 (±1,500) years BP, with gene flow between this divided group of Ancestral Indigenous Americans and Siberians persisting until about ~25,000 (±1,100) years BP, before merging with Ancient North Eurasians and subsequently becoming isolated in the Americas or Beringia at ~22,000 years BP. Northern and Southern American Indigenous sub-populations split from each other at roughly ~17,500 to 14,600 years BP. There is also some evidence for a back-migration from the Americas into Siberia after ~11,500 years BP.