Rat Terrier vs Shetland Sheepdog

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

Shetland Sheepdog

Size
15–25 lbs, 13–16 in
Lifespan
12–14 years
Exercise
High
Grooming
High
Good with Kids
Yes
Good with Pets
Yes
Intelligent Eager Gentle Responsive

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 Shetland Sheepdog

The Shetland Sheepdog — or "Sheltie" — was developed on Scotland's remote Shetland Islands, where harsh conditions favored smaller, efficient herding dogs that could thrive on limited resources. Standing 13 to 16 inches tall and weighing 15 to 25 pounds, Shelties resemble a miniature Rough Collie but are a distinct breed with their own standard and lineage. Their abundant double coat features a long, straight outer layer and dense undercoat, coming in sable, black, and blue merle — all typically with white and tan markings.

Temperament & Personality

Shetland Sheepdogs are incredibly intelligent, sensitive, and eager to please — consistently ranked among the top 10 most trainable dog breeds in the world. They are devoted to their families and particularly gentle with children, often forming an especially strong bond with one household member. Shelties can be reserved with strangers and may bark to alert their family, but their sensitivity and willingness to learn make them wonderful companions for patient, attentive owners.

Pros

  • Exceptionally intelligent — excels in agility, obedience, and herding competitions
  • Gentle, affectionate, and outstanding with children
  • Compact size with all the beauty and grace of a Collie
  • Loyal and deeply bonded to their family

Cons

  • Heavy shedding — the dense double coat requires frequent brushing and sheds year-round
  • Prone to excessive barking, especially when excited or alerting
  • Susceptible to Collie eye anomaly, hip dysplasia, and dermatomyositis
  • Can be timid and fearful without proper early socialization

Shelties combine beauty, brains, and devotion in one elegant package — explore Shetland Sheepdog adoption options on Puplister.

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Frequently Asked Questions

What is the difference between a Rat Terrier and a Shetland Sheepdog?
The Rat Terrier is 10–25 lbs, 10–18 in sized while the Shetland Sheepdog is 15–25 lbs, 13–16 in sized. They differ in size (10–25 lbs, 10–18 in vs 15–25 lbs, 13–16 in), lifespan (12–18 years vs 12–14 years), and care requirements.
Which breed is better with kids, Rat Terrier or Shetland Sheepdog?
Rat Terrier is generally good with kids. Shetland Sheepdog is generally good with kids.
Which breed lives longer, Rat Terrier or Shetland Sheepdog?
The Rat Terrier has a lifespan of 12–18 years while the Shetland Sheepdog has a lifespan of 12–14 years.

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