Boxers come from late nineteenth-century Germany, where the Bullenbeisser, a hunting dog used to catch and hold boar and deer, was crossed with English Bulldogs. The result is a square, muscular working dog with a short shiny coat in fawn or brindle, often with white markings, a black mask and a broad, blunt muzzle with a slight underbite. Boxers have served as messenger, guard and police dogs, and they remain one of America's best-known family breeds.
Many Boxers are clownish, affectionate and physical, greeting people with wiggles, leaps and a hard-wagging rear end. They usually stay puppyish for years, so adopters should plan for daily exercise, patient reward-based training and supervision around small children who could be bowled over. Their short face and thin coat make them sensitive to heat and cold, and the breed carries real heart and cancer risks.