JTerrier

Terrier

Jack Russell Terrier

“Small body. Infinite energy.”

A small, fearless earthdog with boundless energy and a big-dog attitude.

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Size

Small

Weight

13–17 lb

Lifespan

13–16 years

Energy

Very High

Grooming

Low

At a Glance

Quick Stats

Group

Terrier

Size

Small

Height (M/F)

10–15 in / 10–15 in

Weight (M/F)

13–17 lb / 13–17 lb

Lifespan

13–16 years

Exercise Needs

Very High

EnergyVery High

TrainabilityIntermediate

GroomingLow

SheddingModerate

ExperienceIntermediate

The Breed

Overview

Developed by Parson John Russell in England to bolt foxes from their dens, the Jack Russell is a small, tireless earthdog. Its energy, intelligence, and fearlessness make it a working terrier through and through.

Origin

England

Original Purpose

Going to ground after foxes and vermin

Temperament

Energetic, bold, clever, stubborn

Best Known For

A small, fearless earthdog with boundless energy and a big-dog attitude.

Character

Temperament

Jack Russells are typically energetic, bold, and clever. They were bred to chase foxes underground, and that fearlessness and stamina still define them. They are affectionate with family but intense and never low-key.

Affection & Family

Devoted to the family but intense; best with active households.

Independence

Energetic, bold, clever, stubborn

Social Behavior

Variable — can be scrappy; socialize early.

Protective Instincts

Energetic, bold, clever, stubborn

With Children

Typically okay with older, gentle children; not tolerant of rough handling.

With Other Dogs

Variable — can be scrappy; socialize early.

Movement

Energy & Exercise

Needs vigorous daily exercise — running, play, and work — far more than its size suggests. A walk is not enough.

Recommended Activities

AgilityRunningFetchEarthdogHikingObedienceTrail walksScent work

Partnership

Training

Smart but stubborn and strong-willed; need patient, consistent handling. They will test boundaries and dig and chase.

Trainability

Intermediate

Experience Level

Intermediate

Coat Care

Grooming

Coat varies (smooth, broken, rough); low maintenance — occasional brushing and hand-stripping for show coats.

Grooming Needs

Low

Shedding

Moderate

Wellness

Health

Watch for patellar luxation, eye conditions, and deafness. This guide is for general educational purposes and is not a substitute for veterinary advice.

Every dog is an individual. This guide is general and educational — not a diagnosis or guarantee. Always consult a veterinarian for breed-specific or personal health concerns.

Heritage