amosborne13 8 / 17 Feb 25, 2007 #1The most commonly owned pet cat is the domestic cat and can be categorized into three groups; indoor domestic cats, outdoor domestic cats, and indoor-outdoor domestic cats. When these cats are clean and sitting next to each other, they appear extremely similar. The different environments these three groups of domestic cats exist in are what make them different in every other way.Indoor cats are cleaner and healthier, because they are more likely to be taken to the veterinarian. They are safe from predators, cars, abusive humans, and communicable diseases and they do not get lost or stolen. Since inside cats do not have to spend their time looking for food, they have more time to clean themselves and they also are more likely to be overweight. This type of cat tends to be more of a lap cat, than the others. Indoor cats also have downfalls, they do not have a faucet to let out their energy and this sometimes causes them to "climb the walls." City cats need to also be indoor cats, due to all of the dangers.Outdoor cats spend most of their time looking for food and trying to be safe from predators. his causes them to be skinner and dirtier. They tend to also be a nuisance in the community, knocking over trashcans and tearing up trash. Outdoor cats tear up gardens, when using them for a litter box. They are safer in the country.Indoor-outdoor cats have the best of both worlds they do not have to look for food and they can go outside for exercise. They also have the bad parts of the outdoor cat. They have a chance of getting into a fight and getting hurt, or hit by a car. Indoor-outdoor cats can get lost or stolen and they can come into contact with communicable diseases. Rural areas are the best for indoor-outdoor cats.The best way for a cat to be raised depends on the owner's preferences and the living circumstances.