RANGE: USA: Arizona, south to Mexico HABITAT: dry grassland BODY: 5-7.75 in TAIL: 3-5 in
Arizona Cotton Rat
Cotton rats are so abundant that they are sometimes declared a plague. They normally feed on plants and small insects, but when populations are high, they take the eggs and chicks of bobwhites as well as crayfish and fiddler crabs. They breed prolifically, producing their first litter of up to 12 young when just 10 weeks old.