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 and a black mask. Boxers went on to serve as messenger, guard and police dogs.
In Long Beach, that history shows up as a dog that wants a job and company. Many Boxers stay puppyish for years, greeting people with wiggles and leaps, so they need patient, reward-based training and supervision around small children. Their short faces and thin coats make them sensitive to heat and chill, even on a mild coast, and the breed carries real heart and cancer risks. Dogs vary, so a Boxer may be calmer or more intense than the typical description.