Pet dwarf rats have not been around as long as other types of pet rats.
Dwarf rats are about 1/3 the size of standard rats.
Dwarf rats live just as long as standard rats. Some say that dwarf rats are more resistant to some types of cancer.
Dwarf rats tend to be more active than standard size rats, at least until they are about 9 months old.
You should wait until your baby dwarf rats are at least 6 or 7 weeks old until you bring them home.