Perhaps, the house mouse groups are simply in this fuzzy area at this moment in evolutionary time ... Feral animals can live in agricultural fields, meadows, and scrublands (Sage, 1981). In most ...

The deer mouse (Peromyscus maniculatus), sometimes called the field mouse, is a little bigger than a house mouse. It's easily distinguishable by its deer-like color, due to dense fur that's brown on ...