Adult mice typically weigh about 1 ounce (28 grams) and are approximately 2.5 to 3.5 inches (6 to 8 cm) long, not including the tail ( see Table: Mice at a Glance). Male mice are typically larger than females. Pet mice are available in many colors and coat patterns due to specialized breeding. Coats can be smooth, curly, longhaired, or a combination. The most common color variations are brown, black, tan, gray, and albino, with lighter and darker shades of these as well. The usual life span of mice is 1.5 to 2.5 years.
Mice at a Glance
Life span | 1.5 to 2.5 years |
Weight | 20 to 40 g |
Length (including tail) | 6 to 7 in (15 to 18 cm) |
Normal body temperature | 98°F to 101°F (36°C to 38°C) |
Heart rate | 450 to 600 beats per minute |
Estrous cycle | 4 to 5 days |
Duration of pregnancy | 19 to 21 days |
Litter size | 10 to 12 young |
Weaning age | 21 to 28 days |
For More Information
Also see professional content regarding mice as pets.
