House Mouse

House Mouse

The House Mouse (Mus musculus) is one of the most numerous species of the genus Mus commonly termed a mouse. It is a small mammal and a rodent.

Laboratory mice belong to strains of House Mice and are some of the most important model organisms in biology and medicine; they are by far the most commonly used genetically altered laboratory mammal.

House mice have an adult body length (nose to base of tail) of 7.510 cm (3.03.9 in) and a tail length of 510 cm (2.03.9 in); the weight is typically 1025 g (0.350.88 oz). They vary from white to grey, light brown to black, with short hair and a light belly. The ears and tail have little hair. The hind feet are short compared to Apodemus mice, only 1519 mm (0.590.75 in) long; the normal gait is a run with a stride of about 4.5 cm (1.8 in), though they can jump up to 45 cm (18 in). The droppings are blackish, about 3 mm (0.12 in) long, and have a strong musty smell. The voice is a high-pitched squeak.

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