Mus musculus, commonly known as the house mouse, is a small rodent native to Asia but has since spread globally, often found in human habitats. Adult house mice typically measure about 2.5 to 4 inches in body length, with an additional tail length of 3 to 4 inches. Their fur is generally light brown to gray, with lighter underparts, and they have large, round ears and small eyes.

House mice are highly adaptable creatures, thriving in various environments, including homes, farms, and urban areas. They are primarily nocturnal and are known for their curiosity and intelligence. Omnivorous by nature, they feed on grains, fruits, and seeds but will eat a wide range of food items.

Reproductively prolific, female house mice can give birth to several litters each year, with each litter containing 5 to 10 pups. This high reproductive rate contributes to their status as common pests, often leading to conflicts with humans