Head and Body: To about 3-1/2 inches long. Fur gray-brown, short; about the same color on the back and belly.
Tail: To about 3-1/2 inches long. Little hair; appears scaly; about the same color on the top and bottom.
Ears: Short and rounded.
Weight: 1/2 to 1 oz (to about 22 g).
Comments: House mice are prolific breeders. Females can begin breeding at about 6 weeks of age. Gestation is about 3 weeks, litters to about 10, and they can breed all year. |