Rat Terrier

Developed on American farms to control rats and other vermin, the Rat Terrier is a small dog with a working dog's drive: alert, quick, and endlessly curious about movement in the grass. That heritage means a strong prey drive is part of the package, so small pets in the household and off-leash time in unfenced areas call for thoughtful management rather than assumption. At home, though, the same dog is affectionate and often described as a "velcro" companion, happiest curled up near its people after a good outing.

Rat Terriers are intelligent and generally eager to work for food or praise, but their independent streak means training goes best with short, upbeat, consistent sessions rather than repetition for its own sake. They tend to be selective with unfamiliar dogs, so introductions benefit from a calm, gradual approach, and early socialization with a variety of people, sounds, and situations helps a naturally alert dog grow into a confident rather than reactive adult.

This is a high-energy breed that needs both physical exercise and mental stimulation daily — a bored Rat Terrier is more likely to become vocal or find its own projects, like digging. Their short, smooth coat sheds only lightly and needs little upkeep, but it also offers little insulation, so cold or damp weather is a good cue for a coat or sweater. With children they are typically playful and devoted when raised together, though their small size and quick movements mean young kids and dogs both do best with supervision.