Adults remain small, less than 7 inches long from tip of nose to tip of tail.
House mice are gray or brown and have hairless, scaly tails and ears that are relatively bald.
The house mouse is curious and tends to investigate new objects placed in its environment. House mice and their droppings are known carriers of disease including rickettsial pox (mites), typhus (fleas), salmonella, tapeworm, roundworm and others parasites. The house mouse is considered to be one of the most troublesome and economically important pests in the United States. Their relentless gnawing causes damage to both structures and property.
The house mouse often consumes food meant for humans or pets and favors grains, dried fruits, nuts and sweet materials.
A prolific breeder, the house mouse is sexually mature at two months old, has a gestation period of only three weeks, and averages five to eight young per litter. Each female may give birth to eight litters. The house mouse can live from two to three years.
House mice are active wherever droppings, fresh gnawing and tracks are noticed. Their nests are made from shredded paper or other material and are often found in sheltered locations. House mice have an unpleasant, musky odor that identifies their presence. They are excellent climbers and can scale any rough vertical surface. They will also run horizontally along wire cables or ropes and can jump up 13 inches from the floor onto a flat surface. House mice can slip through a crack as small as ¼ inch wide.