Siberian, Native American Languages Linked -- A First
His research links the Old World language family of Yeniseic in central Siberia with the Na-Dene family of languages in North America.
The Yeniseic family includes the extinct languages Yugh, Kott, Assan, Arin, and Pumpokol. Ket is the only Yeniseic language spoken today. Less than 200 speakers remain and most are over 50, according to Vajda.
"Within a couple of generations, Ket will probably become extinct," he said.