House Mouse

Facts

• Name: House Mouse, Mus musculus
• Life cycle: Complete metamorphosis
  Gestation: 19-20 days
  Weaned: 21-23 days
  Sexually mature: 5-6 weeks
  Reproduction: Females can produce up to 10 litters per year, with 5–6 pups per litter being typical
• Description:
  Adult house mice weigh 15–18 grams and measure 70–90 mm in head and body length, with a tail approximately 80% of that length. Fur is grey-brown with slightly lighter underparts. They possess large ears, a pointed snout, and small black eyes. Unlike many rodents, M. musculus exhibits minimal neophobia and may actively investigate new objects in its environment. Their incisors leave gnaw marks approximately 1 mm apart.
• Behavious: 
  Primarily nocturnal, house mice are agile climbers, jumpers, and capable swimmers. They are nervously active and highly adaptable, thriving in close proximity to human habitation. Known for their territorial scent-marking, individuals often contribute to communal urine pillars in confined spaces.
• Habitat:

  Mus musculus prefers dry, sheltered environments and avoids damp conditions. It is commonly found in homes, warehouses, food storage areas, and agricultural buildings. Outdoor survival is limited in temperate climates due to competition from native species such as the wood mouse (Apodemus sylvaticus).