Army veteran William Bottger battles PTSD and memory loss, but his loyal dog, Roxie, never leaves his side. With a Batman-shaped marking on her fur, she’s his everyday hero.

Explore spoke to an expert for helpful tips on what you can do if your pet runs away when you're on vacation, how to prepare for it, and ways to prevent it.

Collar Scholars is affiliated with Canine Companions, a national nonprofit organization that provides service dogs for free to individuals with disabilities, as well as dogs trained for use in ...