Mice prefer to eat cereal grains and plants, but they will feed on almost anything. A mouse will build its nest in a hidden area near a food source. It will use just about any soft material or finely shredded paper to build its nest.
In one year, one female mouse can breed up to 10 litters of five to six babies. That is up to five dozen baby mice in one year. Now consider that those 60 offspring can begin to reproduce in as little as six weeks. Mice usually live about 9 to 12 months.