Rat Terrier
The Rat Terrier is an American-bred farm dog that combines terrier tenacity with a surprising degree of trainability and affection. Developed to control vermin on homesteads across the rural United States, the breed retains a strong prey drive and lightning-fast reflexes, but generations of close living with families have produced a dog that genuinely wants to be with its people — not just tolerated, but actively included. Rat Terriers are alert and vocal enough to serve as effective watchdogs, yet small enough (10 to 25 pounds in standard size) to fit comfortably in apartments provided they get sufficient exercise and mental stimulation. They excel in agility, barn hunt, and lure coursing. Unlike some terrier breeds, Rat Terriers are generally willing to work cooperatively with their owner, though they retain an independent streak and will test boundaries. They can be wary of strangers and dog-selective, particularly intact males, so early socialization matters. The breed's short coat is genuinely low-maintenance, but they shed more than their smooth appearance suggests. Families wanting an active, compact dog with real working instincts and a sense of humor will appreciate the Rat Terrier, while those seeking a calm, non-reactive dog may find the breed's intensity and prey drive challenging.
History
The Rat Terrier was developed in the United States from a mix of Smooth Fox Terriers, Manchester Terriers, Old English White Terriers, and later crosses with Beagles (for pack mentality), Whippets, and Italian Greyhounds (for speed). President Theodore Roosevelt is sometimes credited with naming the breed after his own terrier cleared the White House of rats. By the 1920s-1930s, the breed was one of the most common farm dogs in America, but the rise of commercial pesticides reduced demand. The AKC recognized the Rat Terrier in the Terrier Group in 2013, capping a long period in the Foundation Stock Service.
Characteristics
Compatibility
Care Guide
The short, dense coat needs only weekly brushing with a rubber curry or soft bristle brush, but expect moderate shedding year-round with heavier seasonal blowouts. Rat Terriers need 45 to 60 minutes of daily exercise combining walks, free running in a securely fenced area, and interactive play — their prey drive makes off-leash exercise in unfenced areas risky. They respond well to positive reinforcement training and pick up new behaviors quickly, but repetitive drilling bores them; keep sessions short and varied. Dental care is particularly important in the breed, as small terriers are prone to periodontal disease — regular brushing and dental chews are not optional extras.
Common Health Issues
- patellar luxationA common issue in small breeds where the kneecap slips out of alignment, causing intermittent lameness and bunny-hopping gait. Maintaining lean body weight reduces mechanical stress on the joint, and severe cases benefit from surgical stabilization.
- hip dysplasiaLess frequent than in large breeds but still present in the gene pool, causing rear-end stiffness and pain. OFA screening of breeding stock and keeping dogs at an appropriate weight are the primary prevention tools.