Mice weigh around 15-30 grams, are dusty grey in colour, and have a body length around 10cm. Their tails are as long as their body length. Mice have small heads with large ears. Droppings are dark in colour, 5mm long with pointed ends, and usually contain hair.
The female mice give 6-10 litter per year, each of which contains 5-15 young. The young are born blind and their eyes open about 12 days after their birth. They have a lifespan of one to two years.
Mice transmit diseases and contaminate foods with their urine and droppings. Mice cannot vomit. They eat around 3 grams per day. They can eat any food stored at the house. Mice travel no more than 15m. They usually investigate new objects with care before touching them. Mice are more active at night time.
They prefer nesting inside floor joints and between walls. They make holes with a diameter of around 12mm. They can gnaw through wood, aluminium and asphalt.