Great Pyrenees vs Shih Tzu
A side-by-side comparison to help you find the right breed for your lifestyle.
Great Pyrenees
Also known as: Pyr, Pyrenean Mountain Dog, Chien de Montagne des Pyrenees
The Great Pyrenees is a majestic livestock guardian weighing 38-72 kg, bred to work independently in the Pyrenees Mountains. While gentle with family, their nocturnal barking, roaming instinct, and independent nature require experienced owners with secure fencing. Not recommended for apartments or first-time owners.
Extra Large
Medium
10-12 yrs
65-82 cm
Shih Tzu
The Shih Tzu is a small and affectionate dog breed known for its luxurious, flowing coat and friendly, outgoing personality. Originally bred as a companion for Chinese royalty, the Shih Tzu is cherished today as a loving and devoted family pet.
Small
Low
10-16 years yrs
N/A
Quick Comparison
| Trait | Great Pyrenees | Shih Tzu |
|---|---|---|
| Energy | ||
| Trainability | ||
| Grooming Needs | ||
| Family Friendly | ||
| Independence |
Key Characteristics
| Good with Kids | ||
| Good with Dogs | ||
| Good with Cats | ||
| Hypoallergenic | ||
| Apartment Friendly | ||
| First-Time Owner OK |
| Detail | Great Pyrenees | Shih Tzu |
|---|---|---|
| Size | Extra Large | Small |
| Energy Level | Medium | Low |
| Grooming | High | High |
| Trainability | challenging | challenging |
| Barking Level | High | High |
| Shedding Level | High | Low |
| Chew strength | Moderate | Light |
| Housing | Acreage | Apartment |
Owner Fit & Decision Guide
Owner Match
| Trait | Great Pyrenees | Shih Tzu |
|---|---|---|
| Experience Level | Advanced | Experienced |
| First-Time Owner | ||
| Ideal Owner | Experienced owner with acreage or large securely fenced yard, tolerant of nocturnal barking, understanding of independent working breeds, possibly with livestock to guard. Patient with training and comfortable with a dog that thinks for itself. | Active individual or family who can provide adequate exercise and training for a Shih Tzu. |
Great Pyrenees Dealbreakers
- Live in an apartment or rental
- Have close neighbors sensitive to barking
- Want a dog that obeys commands instantly
- Don't have a secure physical fence
- Want a pristine, fur-free home
- Need a running or high-intensity exercise partner
Shih Tzu Dealbreakers
- Cannot meet 20-30 min daily exercise
- Cannot commit to grooming needs
Surrender Risk
| Factor | Great Pyrenees | Shih Tzu |
|---|---|---|
| Risk Level | High | Medium |
| Primary Reasons | Nocturnal barking - owners get a fluffy puppy that starts barking all night at 1 year old, Roaming/escape - jumping fences to expand territory, Resource guarding - growling over food scares families who expected Golden Retriever temperament, Size underestimated - 120lb dog that refuses to move and may growl when asked to get off couch | Underestimated exercise needs, Behavioral challenges, Cost of care |
Temperament & Personality
Behavior Comparison
| Trait | Great Pyrenees | Shih Tzu |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Great Pyrenees | Shih Tzu |
|---|---|---|
| Barking Level | High | High |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Great Pyrenees | Shih Tzu |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Moderate to High | Low |
Great Pyrenees Social Traits
High
Same-sex aggression common, especially females. Keep opposite-sex pairs for peace.
Shih Tzu Social Traits
Moderate
Generally friendly
Training
Great Pyrenees
- Must convince them your request is worth their effort
- Harsh corrections cause shutdown or defensive behavior
- Focus on management over strict obedience
- Accept that recall will never be 100% reliable
Shih Tzu
- **: Positive reinforcement only. This breed shuts down or becomes defensive with harsh correction.
Great Pyrenees Considerations
The #1 complaint from suburban owners. Pyrs are genetically hardwired to patrol and bark at night - they were bred to ward off wolves and bears. This instinct cannot be trained out, only managed. Expect deep, booming barks at 2 AM when a leaf blows across the driveway.
Great Pyrenees do not believe in property lines. Without a secure 5-6 foot physical fence, they will expand their territory to include the entire neighborhood. They are notorious escape artists and will take the shock from invisible fences to pursue threats.
Adult Pyrs often exhibit severe aggression toward dogs of the same sex, particularly females. This usually manifests around social maturity (18-24 months). Opposite-sex pairs are generally recommended.
Pyrs are not dumb - they are independent. When called, they evaluate whether coming is more important than what they are currently doing (usually guarding). If they decide it isn't, they will ignore you completely.
Multi-Species Compatibility
| Species | Great Pyrenees | Shih Tzu |
|---|---|---|
| With Cats | Excellent - bred to protect vulnerable animals, views cats as part of the flock to guard | Generally safe with proper introduction |
| Small Mammals | Good - low prey drive, protective instinct toward smaller animals in their family | Supervision required |
| Birds / Reptiles | Good with supervision - generally safe due to arrested predatory sequence | Caution advised |
Advanced Behavior
| Trait | Great Pyrenees | Shih Tzu |
|---|---|---|
| Predatory Sequence Risk | Arrested | Medium |
| Biddability | Low | Low |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | 18 months | 18 months |
Great Pyrenees: Predatory sequence arrested early - may chase predators to drive away but lack dissect/consume drive. Brilliant problem solvers but low 'working intelligence' (willingness to follow commands). Bred to work without humans so don't look to humans for answers.
First Year & Life Stages
First Year Challenges
| Challenge | Great Pyrenees | Shih Tzu |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 4-10 |
| House Training | Medium | Moderate |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Great Pyrenees: Pyr puppies are large, stubborn land sharks. A 6-month-old is the size of a German Shepherd but has the brain of a toddler. Critical socialization window 8-16 weeks - must expose to strangers, other dogs, and strange noises or natural guarding instinct can turn into fear-aggression.
Shih Tzu: Shih Tzu puppies require consistent training and patience.
Life Stages Timeline
| Stage | Great Pyrenees | Shih Tzu |
|---|---|---|
| Puppy Phase | 18 months | 12 months |
| Adolescence | 10-24 | 6-18 |
| Adult Years | 2-8 | 2-8 |
| Senior Onset | ~8 years | ~8 years |
| Peak Energy Age | 1-2 years | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Great Pyrenees | Shih Tzu |
|---|---|---|
| Height | 65-82 cm | N/A |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Extra Large | Small |
| Lifespan | 10–12 years | 10–16 years |
| Litter Size | 6-10 | 4-8 |
Great Pyrenees Coat
Shih Tzu Coat
Lineage & Origin
| Detail | Great Pyrenees | Shih Tzu |
|---|---|---|
| Original Purpose | Autonomous livestock guardian - protecting sheep from wolves and bears in the Pyrenees Mountains without human guidance | The Shih Tzu ("Lion Dog") was developed in the palaces of the Chinese Emperor, likely by crossing th |
| Origin | Pyrenees Mountains (France/Spain), ancient breed | Tibet) with the Pekingese |
Breeding Details
| Detail | Great Pyrenees | Shih Tzu |
|---|---|---|
| C-Section Rate | Low | Varies |
| Whelping Difficulty | Easy | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Great Pyrenees | Shih Tzu |
|---|---|---|
| Bloat / GDV Risk | High | Low |
| Slippery Floor Risk | Medium | Low |
| Min Fence Height | 1.5m | 1.5m |
| Dig / Escape Risk | High | Low |
Health & Common Conditions
Great Pyrenees Health Issues
Shih Tzu Health Issues
Great Pyrenees Suggested Tests
- Gastropexy (stomach tacking) - recommended during spay/neuter
- Neuronal Degeneration (NDG) DNA test
- Hip Evaluation (OFA)
- Elbow Evaluation
- Patella Evaluation
Shih Tzu Suggested Tests
- Renal Dysplasia (wedge biopsy or ultrasound)
- CERF/CAER eye clearances
Health Risk Overview
| Risk Factor | Great Pyrenees | Shih Tzu |
|---|---|---|
| Cancer Risk | High (osteosarcoma) | Medium |
| Cardiac Risk | Low | Low |
| Neurological Risk | Medium (NDG) | Low |
| CCL/ACL Tear Risk | Medium | Low |
| Vet Burden Tier | High | Medium |
Sensitivities & Allergies
| Sensitivity | Great Pyrenees | Shih Tzu |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies | Generally robust |
Health Maintenance
| Care Item | Great Pyrenees | Shih Tzu |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | Medium (entropion risk) | Low |
| Anal Gland Issues | Rare | Occasional |
Senior Care & Aging
Great Pyrenees Senior Care
Common Senior Issues
- Arthritis/mobility decline
- Osteosarcoma (bone cancer)
- Hip dysplasia progression
- Vision decline
Mobility slows around 8+ years. Arthritis management becomes primary focus. Ramps for cars and stairs become necessary.
Shih Tzu Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Great Pyrenees
high maintenanceShih Tzu
high maintenanceLifestyle Compatibility
Great Pyrenees Daily Life
Shih Tzu Daily Life
Housing & Legal Restrictions
| Restriction | Great Pyrenees | Shih Tzu |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Over 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Great Pyrenees | Shih Tzu |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Low | Medium |
Travel Compatibility
| Activity | Great Pyrenees | Shih Tzu |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Great Pyrenees | Shih Tzu |
|---|---|---|
| Service Dog | Low | Low |
| Therapy Dog | Low | Low |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | None | Low |
Costs & Expenses
Upfront Costs
| Cost | Great Pyrenees | Shih Tzu |
|---|---|---|
| Purchase Price | $1,800-4,000 | N/A |
| Initial Cost Range | $1,800–$4,000 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Great Pyrenees | Shih Tzu |
|---|---|---|
| Monthly Range | $180–$300 | $70–$120 |
| Yearly Range | $2,160–$3,600 | $840–$1,440 |
| Food / Month | $100-150 | $30-50 |
| Insurance / Month | $50-80 | $40-70 |
| Grooming / Session | $100-200 | $60-100 |
| Vet Routine / Year | $600-1,500 | $500-800 |
| Monthly Cost Tier |
Great Pyrenees Lifetime Cost
$25,000-45,000
Shih Tzu Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Great Pyrenees | Shih Tzu |
|---|---|---|
| Snoring | ||
| Flatulence | Rare | Occasional |
| Slobber Level | Moderate | Low |
| Smell When Wet | Mild | Moderate |
| Zoomies Frequency | Rare | Occasional |
| Counter Surfing | ||
| Digging Tendency | High | Low |
Great Pyrenees Quirks
The Pyr Paw
Will forcefully paw at you to demand attention - can be painful given their size and claw strength
The Pyr Lean
Shows affection by leaning their entire 100lb+ weight against your legs
Mud Magnet
White coat is surprisingly self-cleaning (mud dries and falls off) - but the mud falls off onto your floor
Selective Deafness
Will evaluate your command, decide if it's worth their effort, and ignore you if it isn't
Snow Obsession
Will refuse to come inside during snowstorms - thrive in freezing temperatures
Frequently Asked Questions
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