The American Pit Bull Terrieris a dog breed. It is a medium-sized, solidly-built, short-haired dog 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 inchesin height and 25–35 poundsin weight. The American Pit Bull Terrier varies in size. Males normally are about 18-19 inchesin height and around 35-63 poundsin weight. Females are normally around 17-18 inchesin height and 30-57 poundsin weight.
The American Pit Bull is medium-sized, and has a short coat and smooth well-defined muscle structure. Its eyes are round to almond-shaped, and its ears are small to medium in length, typically half prick or rose in carriage. The tail is slightly thick and tapers to a point. The coat is glossy, smooth, short, and stiff to the touch. The accepted coat color can vary widely, but, both the AKC and UKC do not recognize merle coloring. Color patterns that are typical in the breed are spotted, brindled, solid, and with points.
Twelve countries in Europe, as well as Australia, Canada, 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. The state of New South Wales in Australia places 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.