I never wanted a small dog. In my mind, and in my past, a dog — a real dog — was a creature both beefy and substantial. Not like a St. Bernard, but like one you'd see in a movie or something. The kind ...

The tiny, feisty Chihuahua is a relic of sorts. As European settlers arrived in the Americas 500 years ago, their dogs quickly replaced native canines, obliterating detectable genetic traces of ...