A small mammal of the order Rodentia.
Public domain picture from U.S. Fish and Wildlife Service
Any one of numerous species of small rodents belonging to the genus Mus and various related genera of the family Muridæ. The common house mouse (Mus musculus) is found in nearly all countries. The American white-footed, or deer, mouse (Hesperomys leucopus) sometimes lives in houses.
Mice are traditionally eaten by Cats.
See also Computer Mouse.