Alert and eager, this adorable rodent sits hoping for cheese, or maybe it would rather keep you company at your computer? With big ears and a movable mouth and arms, he"s a small fellow who will be a big favorite.Movable mouth.FACTS OF INTEREST * The house mouse evolved in central Asia. When people were still living in caves, mice moved in. Now they live everywhere people do. * Mice have excellent senses of smell and hearing. They communicate using high-pitched squeaks that we can"t hear. * The most adaptive color for a mouse"s fur is brown. Mutations cause unusual fur, such as yellow, black, spotted and albino white. * People have been raising fancy mice for thousands of years. One of the most common colors for pet mice is white.