Aggressive dogs bite people more than 4.5 million times each year, according to the American Veterinary Medical Assocation. About 20 percent of those dog bites need medical attention. If you're ...

Baring teeth, growling and lunging are all signs of aggression in dogs. The same can be said for snarling, biting and ‘muzzle-punching’ other four-legged friends or humans. Aggression in dogs can be ...