Pet owners and animal hobbyists are discovering rats as fascinating and intelligent creatures that can be bred selectively and kept as pets. This book advises on virtually all aspects of caging, feeding, rat management, and training. Although ''rat homes'' are commercially available, the authors' detailed discussion of caging includes many do-it-yourself ideas on ways to improve on the manufactured versions and convert rat enclosures into structures that better meet hobbyists' needs. There is also advice on rat trainability, and specific instructions for the training of these animals. Approximately 80 full-color photos.