Dogs, especially puppies are most adorable pets that you can own. Once they grow older they start to become very loyal, and they can become your best friend. Dogs can also be trained for special need. This dogs are called service dogs. Some are trained to help the blind, or some to help people with a special condition. Basically dogs can be trained to do almost anything.
Cats, can be the most playfull and cute pets, when they are same. After they grow, they sort off become lazy and messy.Unlike dogs cats can't be trained to help people, they can't be trained to anything. So unlike dogs, cats are not the best pets.