Norwich Terrier standing outdoors.
Norwich 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.

Borzoi

Borzoi

Among the most impressively beautiful of all dogs, the aristocratic Borzoi is cherished for hi…

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Brazilian Terrier

Brazilian Terrier

The Brazilian Terrier is a fantastic dog, easy to care for, and a good partner with a wondeful…

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Broholmer

Broholmer

Calm, good-natured, yet watchful and confident, the Broholmer hails from Denmark and makes a grea…

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Brussels Griffon

Brussels Griffon

Tipping the scales at no more than 12 pounds, this humanlike toy of complex character has enough…

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Bulldog

Bulldog

Kind but courageous, friendly but dignified, the Bulldog is a thick-set, low-slung, well-muscled…

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Cesky Terrier

Cesky Terrier

The Cesky Terrier, national dog of the Czech Republic, is a clever and adventurous playmate fo…

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Chinook

Chinook

The pride of Wonalancet, New Hampshire, the Chinook is a rugged working dog and devoted family pe…

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Collie

Collie

The majestic Collie, thanks to a hundred years as a pop-culture star, is among the world's mo…

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Drentsche Patrijshond

Drentsche Patrijshond

This breed is pronounced da'rinse-ah puh'trice-hoon. The Drentsche Patrijshond, Drent for short, i…

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Drever

Drever

The Drever is robust and strong rather than elegant and speedy. They have a proud carriage…

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Eurasier

Eurasier

The Eurasier is a medium-sized dog with a thick, medium-long coat that can come in a variety of…

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French Bulldog

French Bulldog

The one-of-a-kind French Bulldog, with his large bat ears and even disposition, is one of the…

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