Rat Terrier

Quick Facts about the Rat Terrier

  • Origin: United States
  • Weight: Males: 4–11 kg, Females: 4–9 kg
  • Life expectancy: 12–18 years
  • Coat Colour: Pied pattern in various colours, commonly black, chocolate, red, or blue with white
  • Breed Group: Terrier

Fast. Focused. Fiercely loyal. The Rat Terrier is a compact powerhouse bred for speed, agility, and pest control. But don’t be fooled by their work ethic—these dogs are also joyful, clownish companions at heart.

Rat Terrier History

Developed in the United States in the early 1900s, the Rat Terrier was bred by crossing Feists, Terriers, and later Whippets and Beagles. Their primary role: controlling vermin on farms and homesteads.

President Theodore Roosevelt famously used Rat Terriers in the White House to eradicate a rat infestation—earning them national recognition and their enduring name. Despite a decline during the rise of chemical pest control, the breed has resurged as a smart, trainable, and loving family dog.

 

Rat Terrier

Rat Terrier Temperament

Clever and intensely loyal, Rat Terriers are high-energy problem solvers who love having a job to do. They bond deeply with their people and may become territorial if not socialised early.

Though reserved with strangers, they are sweet, silly, and affectionate with family—especially children. Their alertness and quick reactions make them excellent watchdogs, and their terrier instincts mean they will chase anything that moves.

Note: Without sufficient mental and physical stimulation, they can become destructive or anxious.

Health and wellness

Rat Terriers are generally robust, with a lean frame and athletic build that supports their active nature. They need regular exercise and mental challenges, as well as a balanced diet rich in protein and healthy fats.

Their short coat requires minimal grooming, but dental hygiene and joint health should be monitored—especially in older dogs.

Significant problems:

Hip dysplasia

Patellar luxation

Legg-Calvé-Perthes disease

Allergies (skin and food)

Demodectic mange (genetic predisposition)

Life expectancy: 13–16 years

🔍 Looking to go deeper into dog training?

Use these categories to explore targeted guides and articles on canine behavior, nutrition, obedience, entertainment, and more.

zoeta-dogsoul-logo

Contact

50130 Chiang Mai
Thailand

+66958496783
Email-Contact

App Roadmap

Connect

Google-Reviews

📄 Published whitepaper: The Invisible Leash, Aggression in Multiple Dog Households & Instinct Interrupted

DOI DOIDOI

Subscribe

Join our email list to receive the latest updates.