• Peak Breeding Activity: year-round
• Gestation period : 21-22 days
• Litter Size: 8-10
• Time to weaning: 3-4 weeks
• Typical Foods: omnivorous: will feed on anything edible
The Norway rat is a large member of the mouse family that can be distinguished by its grayish-brown color and long, scaly tail.
Habitat and Habits
Rats occupy any place where food and shelter can be found including woodlands, open fields, garbage dumps, sewers, and basements.
Reproduction and Care of the Young
These rats are social animals and tend to breed in large groups, where communal care makes this species somewhat of a cooperative breeder. Female Norway rats have been known to produce up to 12 litters per year!