How many babies can a muskrat have?

A muskrat typically has a litter size of 4 to 8 babies, although litters can range from 1 to 12 offspring. Breeding occurs usually in the spring and early summer, with females capable of having multiple litters each year. The young are born altricial, meaning they are born hairless and depend on their mother for care. They begin to venture out of the nest at about three weeks old.