A dog owner got the surprise of her life when she checked her pet cam, only to discover her mischievous Alaskan Malamute, Shiloh, had something unusual around his neck—the cat flap.

The American Kennel Club (AKC) states that the most common causes of dog anxiety are fear, separation and aging. "Dogs often tremble when they feel anxious or stressed. Situations such as fireworks, ...