The American Pit Bull Terrier (APBT) is a dog breed recognized by the United Kennel Club (UKC) and the American Dog Breeders Association (ADBA), but not the American Kennel Club (AKC). It is a medium-sized, intelligent, short-haired dog, of a solid build, whose early ancestors came from the British Isles. When compared with the English Staffordshire Bull Terrier, the American Pit Bull Terrier is larger by margins of 6–8 inches (15–20 cm) in height and 25–35 pounds (11–16 kg) in weight. The American Pit Bull Terrier varies in size: males are normally about 18–21 inches (45–53 cm) in height and around 35–60 pounds (15–27 kg) in weight, while females are normally around 17–20 inches (43–50 cm) in height and 30–50 pounds (13–22 kg) in weight.
According to the ADBA, the American Pit Bull is described to be medium-sized and has a short coat and smooth well-defined muscle structure, and its eyes are to be round to almond-shaped, and its ears are to be small to medium in length, typically half prick or rose in carriage. The tail is prescribed to be slightly thick and tapering to a point. The coat is required by the ADBA to be glossy, smooth, short, and stiff to the touch. Many colors, color patterns, and combinations of colors are acceptable to the ADBA, except that both the ADBA and UKC do not recognize merle coloring. Color patterns that are typical in the breed are solid and tuxedo.
Despite the colloquial use of the term "pit bull" to encompass a whole category of dogs and the legal use of the term to include several breeds in legislation, some conservative professional breeders of the American Pit Bull Terrier as well as some experts and supporters claim that historically the APBT is the only true "pit bull" and the only breed that should be denominated as such.
Twelve countries in Europe, as well as Australia, Canada, some parts of the United States, Ecuador, Malaysia, New Zealand, Puerto Rico, Singapore, and Venezuela, have enacted some form of breed-specific legislation on pit bull–type dogs, including American Pit Bull Terriers, ranging from outright bans to restrictions and conditions on ownership. Several states in Australia place restrictions on the breed, including mandatory sterilization. The breed is banned in the United Kingdom, in the Canadian province of Ontario, and in many locations in the United States although in recent years many of these restrictions have been repealed.
How friendly is this breed towards people they don't know? Some breeds love to meet new humans and become their new best friends. Other breeds may be more cautious around people they don't know.
How likely is this breed to enjoy playtime? Some dog breeds can wait for playtime, eager for the next game of fetch. Other breeds just want to chill on the sofa with their favorite human.
Will this breed be a good watchdog? Some dog breeds react strongly to potential threats and will alert you to anything from an intruder to a squirrel in the yard. Others are happy to welcome anyone in, meaning they probably won't alert you to any danger.
How well can this breed adapt to changes in its life? Some breeds are happy to go with the flow, and won't be bothered by changes in noise, schedules, or living conditions. Other breeds may do better with consistency.
How much does this breed tend to drool? Some breeds can leave drool on your hand, clothes, and furniture. If the thought of a big slobbery kiss from your pooch isn't appealing, you might want to stay away from breeds prone to drooling.
How often will this breed require grooming? Whether you are doing it at home or paying a professional, some dog breeds have higher grooming needs and will need their coats maintained on a regular basis. That can mean more of your time and money to keep your pet looking its best.
Is this breed going to shed a lot? Some breeds will shed more than others and may require more brushing and grooming. Those that shed may be harder on allergies, too, and you might find yourself cleaning up left-behind fur or hair more often.
Is this breed good for families or better suited for individuals? Some dogs are happy to bond with the entire family and enjoy spending time with each member. Other breeds prefer the company of their owner and may be standoffish with others.
Is this breed good with children? Some breeds are tolerant of children and patient with loud noises and grabbing hands. Other breeds might be better off with an adults-only household. No matter the breed, you should always watch your dog around children.
Is this breed good around other dogs? Some dogs are better at getting along with canine companions while others prefer the company of humans. You should always keep an eye on your dog when introducing them to new animals.
Does this breed need a lot of mental stimulation? Some breeds, especially those bred for a specific purpose such as herding, may need more mental stimulation than other breeds. That means they need challenges to solve, decisions to make, and other ways to exercise their brains as well as their bodies.
Is this breed easy to train? Some breeds catch on to things like house-training and new tricks quite easily, eager to earn their owner's praise and maybe a treat or two. It may take more time and patience to train other breeds.
How much energy does this breed typically have? Some dog breeds have a lot of energy, meaning they'll need more exercise to keep them happy and healthy. Other breeds are happy to chill on the sofa and take a nap.
Is this breed likely to make a lot of noise? Some breeds love to bark, howl, and vocalize to their owners. They might bark at a stranger or howl for their dinner. Other breeds tend to be more quiet, only using their voice when they really need to.