1, that's because they are playing games. Puppies will not suffer easily when they get along with other dogs in the future through such exercise.

2. Mother dog is training her baby. Through training, she can learn to survive better. Generally speaking, bitches don't bite too hard. But in order to let the puppy learn skills, it will not be too polite. It hurts the puppy a little, but it usually doesn't bite them. If it did, I'm afraid the puppy would be finished long ago.

3. The baby dog is very naughty. When they bite their mother or leave her jurisdiction, it will lead to admonishing her behavior.

4. When fleas, lice and other insects appear on the puppy, the bitch will also help it scratch by gently biting the puppy, which is the expression that the bitch loves the puppy.

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