House mice can enter the house in an opening the size of a dime. They are excellent climbers and are capable of scaling walls and walking across ropes or wires. Mice mate year round. They have about four to six offspring per litter, with their young reaching sexual maturity in 10 weeks. In a single year a pair of mice can result in 200 mice. They can survive on garbage, scraps, and most foods edible to humans. They are capable of spreading disease through droppings, urine vapors, and physical contact. House mice are usually less than eight inches long, and can be identified by its hairless tail with obvious scale rings, and a pointed nose.