Lucky is a 5-year-old rat terrier mix who weighs in at a medium-sized 32 pounds. He's a sweet, playful dog who loves attention but takes some time to warm up to people. His favorite activity is fetch, ...

Rat terriers are adorable and intelligent little dogs that make a great addition to the family. But what should you know before welcoming one of these tenacious little pups to your household? Keep ...