Career (pet)
Pet careers were introduced with The Sims 2 Pets. They are special careers for pets only. Sims can get jobs for their pets by reading the newspaper or looking on the computer. A pet can get promotions in a career by learning the required commands. Each promotion unlocks a fur color or collar to use in-game.
List of Pet Careers
External Links
List of Unlockable Fur and Collars with Codes from The Sims Resource