HomeBreeds › Parson Russell Terrier (Jack Russell)

Terrier · Small (13-17 lbs) · 13-15 years

Parson Russell Terrier (Jack Russell)

Bold, clever, tireless; relentless energy and intensity in a small package.

13–17 lb

At a glance

Kid-friendly
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First-time owners
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Energy
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Shedding
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Good with cats
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Alone time
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Apartment OK
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Trainability
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What this is

What they’re great at

✓ Big personality - endless entertainment
✓ Loyal companionship, bold
Why it matters

Honest challenges

Under-exercise becomes YOUR problem
A working engine without an outlet redirects into barking, digging, and demolition.

What helps: A daily aerobic outlet is non-negotiable - Flyball and agility rockets is this breed's love language. 20 minutes of brain work tires like an hour of fetch: puzzles, scent games, new tricks. Feed meals from puzzle feeders and snuffle mats - make breakfast a job.
Vocal by design
Alert heritage - announcing things IS the historic job.

What helps: Thank-and-redirect: acknowledge the alert, cue quiet, pay the quiet. Manage triggers: window film and white noise beat willpower. Exercise first - a tired alarm system fires less. Never bark collars.
Prey drive is hardwired
Small fast animals flip an ancient switch - this is wiring, not disobedience.

What helps: Management IS the training: never unsupervised with small pets, period. Secure fencing plus leash or long line outdoors for life. Feed the drive legally: flirt pole and lure-chase games.
Selective about dog friends
Not every dog wants a hundred friends - this breed prefers a curated list.

What helps: Quality over quantity: a few calm, known companions beat any dog park. Parallel walks are the gold-standard introduction. Advocate for their space - declining strange dogs is good ownership.
What you can do

Exercise & training

Exercise: Very high - 1-2+ hrs of hard exercise plus mental work
Training profile — Terrier: Big-dog attitude, endless tenacity. They respond brilliantly to fun, terribly to force. Channel the fire - you cannot extinguish it.
Sports and outlets that suit them: Flyball and agility rockets · Barn Hunt · Earthdog · Trick titles
What you can do

Grooming & coat

Grooming: Low.
Shedding: Moderate (both smooth and broken coats shed).
Good to know

Health to know about

Patellar luxation, deafness, lens luxation, Legg-Calve-Perthes; extremely hardy overall
Breed-typical tendencies, not a diagnosis. Individual dogs vary enormously — your veterinarian screens for what matters for your dog.
How much should YOUR Parson Russell Terrier (Jack Russell) eat?

This page can only give breed ranges. The app calculates calories and portions from your dog’s actual weight and life stage, splits them across the right number of meals, and adjusts as they grow.

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Why it matters

Emergency red flags

Poisoning (chocolate, xylitol, grapes, medications, rodenticide)
Vomiting, drooling, tremors, collapse, or known ingestion
Call ASPCA Poison Control 888-426-4435 or Pet Poison Helpline 855-764-7661 immediately; do NOT induce vomiting unless instructed
Know your ER
Save your nearest 24-hour emergency vet's address and phone in your phone TODAY, not during a crisis
This page never carries product links in the emergency section. ASPCA Poison Control (888) 426-4435 · Pet Poison Helpline (855) 764-7661.
These need to work when the signal does not

The app keeps every Parson Russell Terrier (Jack Russell) red flag on your phone and opens them with no connection at all — which is the whole point at 2am in a car park. Add it to your home screen and it works like any other app.

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📊 The numbers

Typical ranges for planning, not promises — costs vary by region, breeder and individual dog.

GroupTerrier
SizeSmall (13-17 lbs)
Lifespan13-15 years
Healthy adult weight13–17 lb
Original purposeBolting foxes from dens during hunts.
Monthly care$60-$110
Typical puppy price$800-$2,000
🐕 Similar breeds
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