A veterinarian explains what your dog’s quirks, habits, and hidden health clues really mean.

I know I have told you before that I consider myself the crazy dog lady. It doesn’t matter where I see the dog — with his walker, in a car, in a shopping cart — I always want to pet it.

You probably look at your dog’s tail a dozen times a day without really thinking about it. I love my dogs’ tails. They are so different and they both use them and communicate with them so differently.

Dogs are often called "man's best friend," but there's more to these lovable companions than meets the eye. From their quirky biology to surprising behaviors, dogs are full of fascinating surprises.