According to the ASPCA, aggression is the biggest behavior problem in dogs, and one which most often prompts caregivers to look for professional help. It’s also one of the most common reasons people ...

A dog appears to be lying relaxed on the couch–peaceful, calm, secure. But then the door opens, someone enters, and suddenly the dog jumps up, growls, and might even move forward. Outsiders often see ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Baring teeth, growling and lunging are all signs of aggression in dogs. The ...