Numic is a branch of the Uto-Aztecan language family. It includes seven languages spoken by Native American peoples traditionally living in the Great Basin, Colorado River basin, Snake River basin, and southern Great Plains. The word Numic comes from the cognate word in all Numic languages for "person." For example, in the three Central Numic languages and the two Western Numic languages it is . In Kawaiisu it is and in Colorado River , and . Classification These languages are classified in three groups: Central Numic languages Comanche Timbisha (a dialect chain with main regional varieties being Western, Central, and Eastern) Shoshoni (a dialect chain with main regional varieties being Western, Gosiute, Northern, and Eastern) Southern Numic languages Kawaiisu Colorado River (a dialect chain with main regional varieties being Chemehuevi, Southern Paiute, and Ute) Western Numic languages Mono (two main dialects: Eastern and Western) Northern Paiute (a dialect chain with main regional varieties being Southern Nevada, Northern Nevada, Oregon, and Bannock) Apart from Comanche, each of these groups contains one language spoken in a small area in the southern Sierra Nevada and valleys to the east (Mono, Timbisha, and Kawaiisu), and one language spoken in a much larger area extending to the north and east (Northern Paiute, Shoshoni, and Colorado River). Some linguists have taken this pattern as an indication that Numic speaking peoples expanded quite recently from a small core, perhaps near the Owens Valley, into their current range. This view is supported by lexicostatistical studies. Fowler's reconstruction of Proto-Numic ethnobiology also points to the region of the southern Sierra Nevada as the homeland of Proto-Numic approximately two millennia ago. Recent mitochondrial DNA studies have supported this linguistic hypothesis. The anthropologist Peter N. Jones thinks this evidence to be of a circumstantial nature, but this is a distinctly minority opinion among specialists in Numic. David Shaul has proposed that the Southern Numic languages spread eastward long before the Central and Western Numic languages expanded into the Great Basin. Bands of eastern Shoshoni split off from the main Shoshoni body in the very late 17th or very early 18th century and moved southeastward onto the Great Plains. Changes in their Shoshoni dialect eventually produced Comanche. The Comanche language and the Shoshoni language are quite similar although certain low-level consonant changes in Comanche have inhibited mutual intelligibility. Recent lexical and grammatical diffusion studies in Western Numic have shown that while there