Dogs generally distinguish their owner's family members through daily interactions. Because dogs are more humane, so the better they are to them, the closer they will be to them. At the same time, they will also remember the smell of each person. Smell to identify humans. Dogs generally only recognize one owner and are very loyal. Once the dog recognizes the owner, it will always stick to the owner, listen to the owner's words, and even expose its belly for the owner to touch.