Boston Terrier head portrait outdoors.
Boston Terrier

What's a dog breed?

People have been breeding dogs since prehistoric times. The earliest dog breeders used wolves to create domestic dogs. From the beginning, humans purposefully bred dogs to perform various tasks. Hunting, guarding, and herding are thought to be among the earliest job…

What's a dog breed?

People have been breeding dogs since prehistoric times. The earliest dog breeders used wolves to create domestic dogs. From the beginning, humans purposefully bred dogs to perform various tasks. Hunting, guarding, and herding are thought to be among the earliest jobs eagerly performed by the animal destined to be called “man’s best friend.”

For thousands of years, humans bred dogs toward the physical and mental traits best suited for the work expected of them. The sleek Greyhound types bred to chase fleet-footed prey, and the huge mastiff types used as guard dogs and warriors, are two ancient examples of dogs bred for specific jobs.

As humans became more sophisticated, so did their dogs. Eventually, there emerged specific breeds of dogs, custom-bred to suit the breeders’ local needs and circumstances. The Greyhound, for instance, was the foundation type for the immense Irish Wolfhound and the dainty Italian Greyhound. All three have a distinct family resemblance, but you’d never mistake one for another.

So, then, when is a breed a breed and not just a kind or type of dog? The simplest way to define a breed is to say it always “breeds true.” That is, breeding a purebred Irish Setter to another purebred Irish Setter will always produce dogs instantly recognizable as Irish Setters.

Each breed’s ideal physical traits, movement, and temperament are set down in a written document called a “breed standard.” For example, the breed standard sets forth the traits that make a Cocker Spaniel a Cocker Spaniel and not a Springer Spaniel.

The AKC standard for each breed originates with a “parent club,” the AKC-recognized national club devoted to a particular breed. Once approved by the AKC, a standard becomes both the breeder’s “blueprint” and the instrument used by dog show judges to evaluate a breeder’s work.

There are over 340 dog breeds known throughout the world. The American Kennel Club recognizes 200 breeds.

Afghan Hound

Afghan Hound

Among the most eye-catching of all dog breeds, the Afghan Hound is an aloof and dignified…

See More
American Hairless Terrier

American Hairless Terrier

The American Hairless Terrier, a Louisiana native, is a smart, inquisitive, and playful dog tha…

See More
American Water Spaniel

American Water Spaniel

The American Water Spaniel, native to the lake country of the upper Midwest, is an upbea…

See More
Australian Terrier

Australian Terrier

The Australian Terrier is plucky, spirited and lively. The cheeky self-assured Aussie approache…

See More
Barbado da Terceira

Barbado da Terceira

The Barbado da Terceira is a medium-sized herder that is a great companion and family dog. The…

See More
Barbet

Barbet

An archetypic water dog of France, the Barbet is a rustic breed of medium size and balanced…

See More
Bedlington Terrier

Bedlington Terrier

Graceful terriers in sheep's clothing, Bedlington Terriers, named for the English mining shire…

See More
Bergamasco Sheepdog

Bergamasco Sheepdog

Generally happy with kids and other animals, the low-maintenance and robustly healthy Bergamasco i…

See More
Bichon Frise

Bichon Frise

The small but sturdy and resilient Bichon Frise stands among the world's great 'personality dogs.'…

See More
Biewer Terrier

Biewer Terrier

The Biewer Terrier is an elegant, longhaired, tri-colored toy terrier whose only purpose in life i…

See More
Bolognese

Bolognese

The Bolognese, a member of the Bichon family, is an enchanting small, white companion dog with a…

See More
Boston Terrier

Boston Terrier

The Boston Terrier is a lively little companion recognized by his tight tuxedo jacket, sporty bu…

See More