Pit Bull Terrier is a label more than a single breed. In Laredo, as elsewhere, it usually covers American Pit Bull Terriers, American Staffordshire Terriers, Staffordshire Bull Terriers, American Bullies and mixes with similar broad heads and muscular builds. All descend from nineteenth-century British bull-and-terrier dogs, and DNA tests often disagree with shelter labels, so a dog's looks say little about its actual makeup.
Most are medium-sized, roughly 30 to 65 pounds, with a short coat that needs only a weekly brush. Many are affectionate and eager to please, and some are selective about other dogs. Because pit bull–type dogs are among the most common in shelters, adopters often meet adult dogs whose personalities are already visible, which makes matching a dog to your household easier than guessing with a puppy.