Don’t be fooled by the size: Jack Russells are intense working terriers that need a LOT of exercise, mental challenge and a job, or that brilliant brain turns to digging, barking and escape artistry. They have a sky-high prey drive (risky with small pets) and love to dig. Trainable and athletic — they excel at agility and tricks — they suit an active, engaged owner who can keep that little engine busy.
Jack Russell Terrier
- Trainer-reviewed by Marcus Bell, CPDT-KA
- Last updated June 2, 2026
Breed character
A pocket-sized powerhouse — fearless, tireless and razor-smart, with the drive of a working hunting terrier packed into a small, busy frame.
Temperament
- Fearless
- Energetic
- Clever
- Bold
- Vocal
Likes
- Vigorous exercise and a job
- Digging and chasing
- Learning tricks and agility
- Hunting and ratting games
Dislikes
- Boredom (becomes destructive)
- Under-exercise
- Being left alone
- Small pets nearby (prey drive)
Habits & quirks
- Relentless energy and busyness
- Digging and burrowing
- Chasing anything that moves
- Alert, frequent barking
Great for
- Very active, engaged owners
- Agility and dog-sport fans
- Rural or active homes
- People who want a clever, gutsy dog
Think twice if…
- Sedentary or absent owners
- Homes with small pets
- Apartments without serious exercise
- Owners wanting a calm lapdog
Is this the right breed for you?
Take the 3-minute Breed Match — a few honest questions about your home, time and energy, and a shortlist of dogs that genuinely fit your life.
Care, gear & guides
Guides for this breed are coming soon.
