Baby mice grow very fast. After only 6 days, they can get the fur, move and squeak. After 18 days, they are ready to leave the nest. Female mice can give birth to babies in just 6 weeks of age. They can produce 10 liters each year, with up to 12 babies in each liter.
How do you know the age of a baby mouse?
Examine the mouse ears. When they are fully formed and extend from the head, the mice are at least 5 days old. In addition, the skin of the mouse looks thick to the touch, and fluffing can be seen around the neck. If you see colored fluff, you know that the mice are at least one week old.
How long does it take for a baby mouse to mature?
Most mice are sexually mature at 4-7 weeks of age (male and female). Young mice generally give birth to small litters and usually do not mate until they reach 6-8 weeks of age.
When can baby mice survive on their own?
Survival is high if mice are abandoned approximately 5-6 weeks after birth. It should be able to start growing some fur and hunt for food. Mice younger than this are much less likely to actually survive without a mother.
Below you will find two helpful answers on a similar topic. 👇
Do baby mice eat their mother's food?How many babies do mice have each year?
