How to teach your dog and cat to get along.

Typically, cats are aloof and easily startled, while dogs are gregarious and territorial. This doesn't mean, however, that they can't share the same space—they're just going to need your help. “If cats and dogs are brought up together in a positive, loving, encouraging environment, they’re going to be friends,” Galaxy tells Mental Floss. “Or at the very least, they’ll tolerate each other.”