When you brought the new puppy home, everything seemed to be perfect. But now you can’t help but notice that your older dog is beginning to show aggression towards the younger one.
You may see him staring at her, growling, or even nipping at her for seemingly no reason.
Are you wondering why your older dog is attacking a new puppy? Knowing some of the reasons for this behavior, and taking steps to avoid them, will go a long way to establishing peace between these two pets.