[livingdustmops]

This is what puppies do...they were use to playing with their litter mates this way. When they start biting you have a toy to give them and never try to rough house with the puppy as you will just be encouraging this action.

Oh also, please never, never put a dog on his back this only increases their fighting and it also causes fear aggression.

Good luck with your little one and relax...they do outgrow this.