The incubation period for rat pregnancies typically lasts about 21 to 23 days. After this period, a female rat will give birth to a litter of pups, which can range from 6 to 12 young, although larger litters are possible. After birth, the pups are altricial, meaning they are born hairless, blind, and completely dependent on their mother.
10wks
12 hours
98 monthes
12 hours
about a week
7 Days
1-4 Days
6 months
4 - 8 weeks
10-20 years
6 weeks
10 years to 85