The Kaska are an Athabascan-speaking language group. They are related to the Tahltan and Taglish Athabascan, once known collectively as Nahani. In 1969 there were 533 Kaska in the Liard River Band near lower post and Watson Lake. Ethnographers typically define Alaskan and Canadian Native Americans by linguistic category for this reason. The Kaska believe in the powers of animal spirits and the practices of medicine men.
Reincarnation is also a facet.
Sub-arctic societies or composite bands are large enough for distinct personality features to be seen as reincarnations of people in the groups past.