For more than 12,000 years dogs have lived with humans as hunting companions, protectors, object of scorn or adoration, and friends. Dogs have evolved from gray wolves and there are over 400 different breeds. Luckily the United States didn't do this but In some areas of the world like Asia, dogs are used as guards or beasts or even for food. Dogs have developed a lot throughout the years there are toy dogs, hunting dogs, and plenty of more but when picking one it's up to you on what kind you want.