Developed in England in the 19th century by the Reverend John Russell for fox hunting, the Jack Russell Terrier makes up for its small size with an energy and temperament that rival dogs far more imposing.
Physical characteristics
- Height: 25-30 cm at the withers
- Weight: 5-8 kg
- Coat: smooth, broken or rough depending on the bloodline, mostly white with brown or black markings
Temperament
Sharp, courageous and intelligent, the Jack Russell was bred to chase and flush game out of narrow burrows — work that shaped a determined, sometimes stubborn dog with an activity need disproportionate to its size.
Roles and disciplines
Hunting (its historical role), agility (where its liveliness shines in the small category), flyball, and bed bug detection (see our dedicated article, where the Jack Russell is particularly well represented thanks to its compact build).
Health and lifespan
A remarkable lifespan of 13 to 16 years. Watch for patellar luxation and certain hereditary eye conditions found in some bloodlines.
A breed for active owners, despite its size
Contrary to a common misconception tied to its small size, the Jack Russell is absolutely not a sedentary apartment dog — it's a breed that demands a level of activity and mental stimulation comparable to much larger dogs, or risk developing compulsive or destructive behaviors.
Also available in English: nutrition and dietary supplements: when and why to consider them, the most common injuries in sport and outdoor dogs and the raised dog bed: comfort, hygiene and durability. More translations are added over time.