Why is my Blue Heeler suddenly aggressive

Blue Heeler Suddenly Aggressive: Here’s Why + What To Do

When you know your Blue Heeler’s personality to be an affectionate dog with good behavior, it can be quite surprising when they start becoming aggressive. Sudden aggression is unusual behavior that can include behavior such as growling, snapping, biting, barking, nipping, or barking at strangers or other animals. Sudden behavior changes are often a sign […]