Mastiff vs Rat Terrier
Working · Giant vs Terrier · Small
MastiffGiant
A courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs.
Weight: 160–230 lbsLifespan: 6–10 years
Rat TerrierSmall
A friendly, lovable, alert American farm terrier — President Roosevelt's favorite, born to clear vermin.
Weight: 10–25 lbsLifespan: 12–18 years
Quick take
- • Mastiff is the larger breed at 160–230 lbs (males) vs 10–25 lbs for the Rat Terrier.
- • The Rat Terrier typically lives longer (12–18 years).
- • The Rat Terrier has higher daily energy needs.
- • The Rat Terrier sheds less.
- • The Rat Terrier is generally more trainable.
Side-by-side traits
| Trait | Mastiff | Rat Terrier |
|---|---|---|
Group | Working | Terrier |
Size | Giant | Small |
Origin | England | USA |
Height (male) | 30" | 10–18" |
Height (female) | 27.5" | 10–18" |
Weight (male) | 160–230 lbs | 10–25 lbs |
Weight (female) | 120–170 lbs | 10–25 lbs |
Lifespan Average expected lifespan. | 6–10 years | 12–18 years |
Energy level Daily activity needs. | Low (2/5) | Very High (5/5) |
Trainability How quickly the breed learns commands. | Moderate (3/5) | High (4/5) |
Intelligence Problem-solving ability. | Moderate (3/5) | Very High (5/5) |
Exercise needs Daily physical activity required. | Low (2/5) | High (4/5) |
Shedding Lower = less hair around your home. | Moderate (3/5) | Low (2/5) |
Grooming effort Brushing, bathing, professional grooming. | Very Low (1/5) | Very Low (1/5) |
Drooling Lower = drier face and furniture. | Very High (5/5) | Very Low (1/5) |
Barking How vocal the breed is. | Low (2/5) | Moderate (3/5) |
Good with kids | High (4/5) | High (4/5) |
Good with other dogs | Moderate (3/5) | High (4/5) |
Good with strangers | Moderate (3/5) | Moderate (3/5) |
Protectiveness Watchdog tendencies. | Very High (5/5) | Moderate (3/5) |
Adaptability Apartment / new environment tolerance. | Moderate (3/5) | High (4/5) |
Coat length | short | short |
Hypoallergenic Lower-shedding, less dander. | No | No |
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About the Mastiff
The Mastiff is a courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs. Originally from England, this giant working breed typically weighs 160–230 lbs and lives 6–10 years. Breeders describe them as courageous, dignified, good-natured.
About the Rat Terrier
The Rat Terrier is a friendly, lovable, alert American farm terrier — President Roosevelt's favorite, born to clear vermin. Originally from USA, this small terrier breed typically weighs 10–25 lbs and lives 12–18 years. Breeders describe them as friendly, lovable, alert.
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Mastiff health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Bloat
- • Heart disease
- • Cancer
Rat Terrier health
Common health concerns reported in this breed:
- • Patellar luxation
- • Hip dysplasia
- • Heart issues