Dogs.They are loyal, fun, playful and perfect for anyone. Dogs have earned this title of mans best friend simply by being a best friend. Many people say dogs are too loud. There are lots of species that don't bark at all. Some may also say that cats are mans best friend, but more people are allergic to cats than dogs, they sense your feelings so they can make you feel better and cats think they are just the kings. Dogs really are mans best friends and anyone who disagrees should adopt a dog too.