Does your dog not play well with other dogs? Whether at the dog park, at doggy day care or even in your own home, a dog who's mean to other dogs can create stress and havoc. Here's how to tell whether your dog is being a bully and what you can do about it.

Before jumping to the conclusion that your dog is actually bullying other dogs, it's important to understand the difference between a bully and an alpha dog. It's natural for one dog to emerge in a group of dogs as the alpha, or pack leader. Alpha dogs are confident of their position, says Cuteness. They generally don't feel the need to push other dogs around or get bossy or demanding, because other dogs naturally defer to their position in the pack. Although an alpha might correct another dog who steps out of line and violates the dog code, they're generally calm and patient with other dogs.
A bullying dog also differs from an aggressive dog, Cuteness points out. A dog might bully a certain dog who they don't like but may get along fine with other dogs. A bullying dog might pick on a dog who they perceive to be weak or fearful, or might inadvertently bully other dogs by simply being obnoxious and overbearing — often due to overstimulation or because they weren't properly socialized as puppies. When a fight breaks out with a bully dog, it's usually because the other dog has finally had enough. Aggressive dogs, on the other hand, tend to be aggressive toward all dogs and are usually the ones who attack or pick fights.
When assessing whether your dog is has taken to bullying behavior, it's just as important to pay attention to the behavior of the dogs interacting with your pooch. If the other dogs appear to be having fun, then your dog probably isn't being a bully. On the other hand, if any of the dogs appear stressed, fearful or start showing signs of aggression toward your pup, then it's possible your dog is actually bullying and it's time to intervene.
Here are more signs of bullying behavior in dogs: