A-Z Animals
A Z Animals: Animal Facts: Rat (Rattus Rattus)
Provides photographs and a fact card about common rats. Discusses where they are found, why they are seen as pests, predators, how humans use them for food and as pets, their life cycle, physical appearance, and diet.
Other
Lscmrc: Mice as Pets
This site gives good advice to mice lovers on how to handle and care for their pets.