TIL of the Ket language. Spoken by 200 people in central Siberia north of Mongolia, it is considered to be in the same language family as Navajo. That would make Ket speakers the only remaining members in Eurasia of the original population that colonized the Americas. User Apoz2, in the Today I Learned (TIL) subreddit, 23 Jun 2017
Linguistic Phylogenies Support Back-Migration from Beringia to Asia (Indigenous Russians and Native Americans share common language elements) User edgyfledglings, in the Reddit Science subreddit, 13 Mar 2014
Sicoli and Holton 2014 - Linguistic Phylogenies Support Back-Migration from Beringia to Asia User limetom, in the Linguistics subreddit, 12 Mar 2014