Rat Terrier

Overview

The Rat Terrier is an American farm dog. Immigrants brought various small terriers to the United States in the 1800s, and farmers crossed them with local dogs to make the ideal barn ratter. President Theodore Roosevelt gave the breed its name after his own dogs cleared the White House of rats.

Living with a Rat Terrier is like sharing your home with a small, sharp, cheerful athlete. They're quick, affectionate, and endlessly curious. They love their families and get on well in busy households. They're one of the more adaptable small breeds when raised right.

History & origin

Working-class Americans and English immigrants shaped the Rat Terrier over the 1800s. Crosses of Smooth Fox Terrier, Manchester Terrier, Old English White Terrier, and various other small ratters produced a hardy, fast, biddable farm dog. Later crosses with Whippet and Beagle added speed and scent ability.

The breed served on farms across the American South and Midwest for a century. Farmers valued them for controlling rats, mice, and squirrels around barns. Their name stuck because President Theodore Roosevelt supposedly credited his own dog with clearing rats from the White House. The story is likely apocryphal but the name endured.

The AKC recognized the Rat Terrier in 2013 after decades of work by dedicated breed clubs. The breed comes in two size varieties, Miniature and Standard, both judged to the same standard except for height. FCI has not recognized the breed. Popularity has grown steadily since AKC recognition.

Appearance

Rat Terriers come in two sizes. Miniatures stand ten to thirteen inches at the shoulder. Standards stand thirteen to eighteen inches. Weight runs from about ten pounds up to twenty-five. The body is slightly longer than tall, compact and muscular. The head is wedge-shaped with pricked or button ears and dark, alert eyes.

The coat is short, smooth, and glossy with a wide range of pied patterns. White plus one or more colors is required. Solid coats disqualify. The tail can be natural full length, natural bob, or docked where legal. Movement is fast and light.

Temperament

Bright, playful, and affectionate with family. Rat Terriers bond hard with their people and want to be included in daily life. They're less snappy than some terriers and often good with other dogs in the household. They still carry terrier drive — chase, dig, and problem-solve.

Strangers get a polite reception once introduced. Rat Terriers alert-bark at newcomers but usually settle after a proper hello. They're quick learners and pick up on household routines faster than most breeds.

Living with one

Rat Terriers fit apartments and houses equally well. They're active but adaptable — a good walk and some play cover most days. A fenced yard is a bonus because they love to sprint and sniff. Skipping exercise turns them restless.

The short coat handles moderate weather but not extremes. Cold and wet call for a coat. Heat is easier than for double-coated breeds, but hot pavement burns bare paw pads. Watch for shivering in winter and panting in summer.

Alone time is workable for adults raised with independence. Puppies benefit from crate training. Ten hours alone is too long. A midday walk or daycare visit keeps a Rat Terrier out of mischief.

Vocal habits are moderate. Rat Terriers alert-bark at real events but aren't chatterers. Training a quiet cue works well. They're not among the noisiest terriers.

Training & exercise

Rat Terriers are quick studies. Positive methods, short sessions, and interesting rewards get fast results. They enjoy learning and often outsmart casual owners. A well-run puppy class builds a foundation that pays off for years.

Socialization matters. Get puppies out to classes, family visits, other friendly dogs, and busy sidewalks from eight weeks. Rat Terriers raised in isolation grow shy or reactive.

Best-suited disciplines include agility, barn hunt, earthdog, rally, obedience, and trick training. Rat Terriers excel at barn hunt because the job matches their heritage. Recall is workable with training but prey drive still overrides in the field. Long lines are wise off-property.

Grooming & care

The short coat needs little work. Weekly brushing with a rubber curry keeps shedding down and the coat shiny. Baths every four to six weeks are plenty. The coat sheds moderately, especially in spring and fall.

Ears are usually clean but check weekly. Nails grow fast — trim every two to three weeks. Brush teeth several times a week. Rat Terriers are prone to tartar buildup like many small breeds.

Health & lifespan

Lifespan runs about fifteen to eighteen years. Rat Terriers are among the longest-lived breeds. They're hardy overall with a relatively short list of inherited concerns. Patellar luxation, hip dysplasia in some lines, and Legg-Calve-Perthes disease occur.

Primary lens luxation has a DNA test and reputable breeders screen for it. Cardiac issues like mitral valve disease appear in older dogs. Deafness can appear in dogs with heavy white coats and blue eyes, though not commonly.

Responsible breeders follow the Rat Terrier Club of America CHIC panel — OFA hips, patellar exam, cardiac exam, ophthalmologist eye exam, and DNA tests for lens luxation and other breed-specific issues. Ask any breeder for current results. Seniors do well with dental care, weight management, and yearly vet checks.

With kids & pets

Rat Terriers usually do well with kids. They're sturdy enough for gentle play and affectionate enough to enjoy the attention. Toddlers still need supervision because rough handling can spark a warning snap.

First-time owner note

A good first-terrier choice for active households. Rat Terriers are more adaptable than many terriers and forgive learning-curve mistakes. Commit to a class and a fenced yard and this breed rewards the effort.

Fun facts

• President Theodore Roosevelt is often credited with giving the breed its name after his own dog cleared the White House of rats.
• The AKC recognizes two sizes — Miniature and Standard — judged to the same standard except height.
• Rat Terriers are among the longest-lived AKC breeds, with many living into their late teens.
• The breed was one of the most common farm dogs in the American South and Midwest during the early 1900s.

Famous & in culture

• President Theodore Roosevelt's Rat Terriers at the White House
• Skip, President Roosevelt's small mixed-breed terrier, sometimes claimed as an early Rat Terrier type