Some puppies, particularly those from working breeds, seem to play bite more or harder, and this is probably becausethey tend to be more energetic. The most important thing to remember is that for the vast majority of puppies, mouthing or play ...
Some behaviorists and trainers ... apart from play—like when he’s afraid or in pain.Puppies usually learn bite inhibition during play with other puppies....

February 26, 2026 -Some occasional mouthing can still happen, but it should gradually become gentler and less frequent. In young puppies,biting is usually part of play, exploration, or teething— not aggression. Aggressive behavior is typically paired with warning signs like stiffness, growling, or avoidance.

It is one reason that puppies should not go to new homes until 7 to 8 weeks of age and they have had time to practice social skills with other dogs. Often littermates play very rough and may even seem loud and aggressive. Sometimes one puppy bites another one too hard and screams out; this startles the offending puppy and teaches him how hard to bite during play.
October 11, 2024 -Teething: Puppies typically start teething around 3-4 months of age and may biteto relieve discomfort in their gums. The process usually ends when all the adult teeth erupt around eight months.