Rat Terrier vs Shih Tzu

Which dog breed is right for you?

Rat Terrier

Size
10–25 lbs, 10–18 in
Lifespan
12–18 years
Exercise
High
Grooming
Low
Good with Kids
Yes
Good with Pets
Yes
Intelligent Curious Lively Sensitive

Shih Tzu

Size
9–16 lbs, 9–11 in
Lifespan
10–18 years
Exercise
Low
Grooming
High
Good with Kids
Yes
Good with Pets
Yes
Affectionate Playful Outgoing Loyal

About the Rat Terrier

The Rat Terrier is an American original, developed in the early 20th century on farms across the United States by crossing Fox Terriers with Beagles, Whippets, Italian Greyhounds, and other breeds. They come in two sizes — Miniature (10 to 13 inches, 10 to 18 pounds) and Standard (13 to 18 inches, 12 to 25 pounds) — both with a compact, elegant build. Their short, smooth coat is always pied (white with patches of one or more other colors), and President Theodore Roosevelt is credited with naming the breed after his own terrier cleared the White House of rats.

Temperament & Personality

Rat Terriers are intelligent, curious, and remarkably versatile — combining terrier tenacity with a more biddable, people-oriented temperament than many of their terrier cousins. They bond deeply with their families and are generally good with children, often choosing one person as their particular favorite. Rat Terriers tend to be less dog-aggressive than other terriers, though they retain a strong prey drive toward rodents and small animals.

Pros

  • Excellent farm and homestead dog with natural pest control abilities
  • More trainable and less stubborn than most terrier breeds
  • Minimal grooming needs — short coat requires only occasional brushing
  • Generally healthy breed with a long lifespan of 12 to 18 years

Cons

  • Can be diggers — will excavate impressive holes in gardens and yards
  • High energy level requires daily exercise and mental engagement
  • Prone to patellar luxation, hip dysplasia, and cardiac issues
  • May be wary of strangers and needs early socialization to prevent timidity

A Rat Terrier could be the spirited, loyal companion your household needs — find one on Puplister today.

About the Shih Tzu

The Shih Tzu — meaning "lion dog" in Mandarin — was bred for centuries within the walls of the Chinese imperial palace, likely from crosses between the Lhasa Apso and the Pekingese. These small, sturdy dogs stand 9 to 10.5 inches tall and weigh 9 to 16 pounds, with a slightly longer body than they are tall and a proud, flowing gait. Their luxurious double coat grows continuously and can reach floor length, coming in virtually every color and combination, with a distinctive chrysanthemum-like pattern on the face where hair grows in all directions.

Temperament & Personality

Shih Tzus are affectionate, outgoing, and delightfully playful — bred solely as companion dogs, they have centuries of experience perfecting the art of being a devoted lapdog. They are friendly with nearly everyone, including children, strangers, and other pets, making them one of the most sociable toy breeds available. Shih Tzus are happy, adaptable, and surprisingly sturdy for their size, with a mischievous charm that keeps their families entertained.

Pros

  • Exceptionally friendly and sociable with people of all ages and other animals
  • Low exercise requirements — short walks and indoor play satisfy their needs
  • Minimal shedding when coat is kept in a shorter "puppy clip"
  • Adaptable and content in apartments, condos, and any living situation

Cons

  • Long coat demands daily brushing or frequent professional grooming
  • Brachycephalic structure contributes to breathing issues and heat intolerance
  • Prone to eye problems (proptosis, corneal ulcers), ear infections, and dental disease
  • Can be stubborn about housetraining — patience and consistency are essential

A Shih Tzu's sole mission in life is to love and be loved — find yours waiting on Puplister today.

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Frequently Asked Questions

What is the difference between a Rat Terrier and a Shih Tzu?
The Rat Terrier is 10–25 lbs, 10–18 in sized while the Shih Tzu is 9–16 lbs, 9–11 in sized. They differ in size (10–25 lbs, 10–18 in vs 9–16 lbs, 9–11 in), lifespan (12–18 years vs 10–18 years), and care requirements.
Which breed is better with kids, Rat Terrier or Shih Tzu?
Rat Terrier is generally good with kids. Shih Tzu is generally good with kids.
Which breed lives longer, Rat Terrier or Shih Tzu?
The Rat Terrier has a lifespan of 12–18 years while the Shih Tzu has a lifespan of 10–18 years.

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