Humans behave very cruelty with cows and dogs.cows gives us milk. When cow don't give milk man beats it and behaves very cruely with it and when we say about dogs man think that dogs are of no use they don't know the importance of dog. Dog is trustful animal. Dogs sensation is so strong that it can be used for detection. But human always behaves cruely with all the animals not only dog and cow. Humans only think of their profit they became very selfish.