Reviewed by Dr. Becker

Bringing home a second dog isn't a decision to be taken lightly. To avoid heartbreak and disappointment later if it doesn't work out (on all parties), don't skimp on the homework. Make sure everyone is comfortable and can answer yes to all five of these questions.

Some dogs still fit the mold of this physical trigger discovered in the 1920s. But many don't. And you can't ignore the growing stack of evidence that your dog might be far more motivated by this emotional trigger. Here's how to find out for sure.

These dogs may not look intimidating at first glance, but they're highly effective at driving off predators much larger and more powerful than they are. They're even known to outsmart coyotes.

Just because you share your life with a dog doesn't mean your yard has to look like the surface of Mars. With a little planning and effort, you can create a lush, outdoor space that pleases you both. From a doggy play space to canine climate control, here are ideas to help you get started.