There are more types of rodents in the family Cricetidae than in any
other family within the order Rodentia. They are also the most wide spread,
living in every habitat from salt marsh to desert to alpine and arctic tundra.
Ten species can be found in North Dakota and include the western harvest mouse,
deer mouse, white-footed mouse, northern grasshopper mouse, bushy-tailed woodrat,
southern red-backed vole, meadow vole, prairie vole, sagebrush vole, and muskrat.