Current Dogs Barking And Snapping At New Puppy. As far as the older dog is concerned, the new puppy or dog must learn and earn their place in the pack. An older dog attacking a new puppy can be stressful.
The first thing you need to do is to separate your older dog and the new. He may have barked or even tried to behave aggressively towards the new puppy. If the new dog is very anxious, he may do the same, trying to keep your dog away from him in certain locations, or even sticking with a family member and trying to keep your dog away.