One of the biggest problems with having rodents in the home is that they reproduce at alarming rates. On average, the litter size of a house mouse is six to eight pups, which means one mouse can have at least 32 to 56 pups every year. Female mice can reproduce immediately after giving birth, meaning after giving birth, a mouse can have a new litter within 25 days.
Rats also reproduce very quickly. A female can produce, on average, 40 babies every year. They can also conceive within 48 hours of giving birth.
