"Pit Bull" Is Not a Breed

Historically, "pit bull" was an informal and slang label used to describe any dog that was subjected to the cruel sport of bull-baiting - using dogs (of any breed) to seize tethered animals such as bulls within an enclosed area called a "pit" (thus the term "pit bull"). Although dogs that resemble today's bully breeds were commonly used for this "sport", many different breeds and mixes were also subjected to this inhumane activity; therefore, it was not a sport limited to today's pitbull-type breeds. In other words, "pit bull" was more of a label to describe any dog that was used for bull-baiting and less of a label used to describe a specific breed or type of dog (technically, if a Husky had been used for baiting a bull in a pit it would have been considered a "pit bull" back then). Furthermore, baiting is not an inherent trait for any breed, it's an activity that must be taught and honed, no different than training a dog to sit or fetch.

Modern Usage of the "Pit bull" Label

Today, the "pit bull" label has become a generic term used to loosely describe a type (or category) of dog based only on its physical appearance (not its DNA) resembling any medium-sized, short-haired dog with physical traits commonly found in the numerous bully-type (or bulldog-type) breeds. While the American Pit Bull Terrier (APBT) is the only formal breed with the term "pit bull" in its name, there are four breeds that are commonly included in the modern pitbull-type category - the American Pit Bull Terrier, American Staffordshire Terrier, Staffordshire Bull Terrier, and the American Bully. However, there are easily over 20 other unique breeds and even more mixed breeds that share the same or similar physical characteristics that are common to dogs included in the pitbull-type category. In fact, a recent comprehensive study on canine DNA determined that 98% of dogs with ancestry from any of the pitbull-type breeds are not purebred; furthermore, the study also determined that the majority (62%) of these dogs have less than a 50% DNA concentration from any pitbull-type ancestry and are therefore by definition mixed breed dogs. Consequently, when a dog is casually labeled or visually identified as a "pit bull", it is more likely to be a mixed breed dog by DNA (or another breed altogether) than any of the pitbull-type breeds listed below.

AKC/UKC Pitbull-Type Breeds

There are four breeds that are commonly included in the modern pitbull-type category by AKC/UKC breed standards - most are members of the Terrier Group of dog breeds. The American Pit Bull Terrier (APBT) is the tallest and most athletic of the four pitbull-type breeds. The American Staffordshire Terrier is slightly shorter and stockier than the APBT. The Staffordshire Bull Terrier is easily the smallest of the four. The American Bully (not to be confused with the American Bulldog) is the most unique of the group as it's the most stout and closely resembles the classic Bulldog breed.

American Pit Bull
​Terrier

​Weight: 30-60 lbs
Height: 17-21 inches

American Staffordshire
​Terrier

​Weight: 40-70 lbs
Height: 17-19 inches

Staffordshire Bull
​Terrier

Weight: 24-38 lbs
Height: 14-16 inches

American
​Bully

Weight: 30-55 lbs
Height: 16-20 inches

History of Pitbull-Type Dogs

Pitbull-type dogs are a crossbreed between a bulldog and a terrier originally bred in England in the early 19th century (then called "Bull and Terriers") to be working dogs on farms to herd, protect, and manage livestock. While their early history is complex and includes herding cattle and protecting homesteads, it also unfortunately includes the cruel "sports" of bull-baiting and dog fighting. However, these inhumane sports were not specific to today's pitbull-type breeds - many different breeds were subjected to these activities which are now illegal almost everywhere. During the 20th century, pitbull-type dogs quickly became one of America's most popular family dogs to the extent that they became national mascots and were used on recruitment posters for World Wars 1 & 2 and were proudly called "America's dog". More recently, their popularity has continued to grow to an estimated 20% of the total dog population in the U.S. (all pitbull-type dogs and mixes combined) and are successful as service dogs, as therapy dogs, as K9 police dogs, as family pets, and consistently achieve excellent temperament scores.
pit bull military mascot poster
World War 1 Military Mascot Poster

The "Pit Bull" Unicorn

The fact is that there is no such thing as a "pit bull" - it is the equivalent of a unicorn in the world of canine DNA. While the four breeds listed above do actually exist (with unique DNA signatures) and have achieved excellent temperament scores making them outstanding canine citizens, the vast majority of dogs labeled as "pitbulls" are in fact mixed breed dogs by DNA. However, we believe that a dog's breed label is for the most part irrelevant - whether a dog is labeled a "pitbull", a "bulldog mix", an "American Pit Bull Terrier", or simply a "mixed breed dog" really doesn't matter because of the fact that just like people, all dogs are individuals. Instead, we'd argue that there's really only one label that accurately describes our pitbull-type family members - and that label is: "a wonderful dog."
Updated: November 12, 2021