Baby Rat Growth: Baby Rat Development - AFRMA
The American Fancy Rat and Mouse Association (AFRMA) is the largest rat and mouse club in the United States. There is much information on safe breeding and exhibiting rats, and also much educational material on the Information Pages. Below is one page, "Baby Rat Development". Also visit the AFRMA's extensive Links Page.
Careful: Separate baby boy and girl rats from each other, and the boys from their mother, by age 5 weeks, or the females will become pregnant and you'll start all over again!