Originally bred for dog fighting and bull baiting, the Boxer Dog can trace its roots to the 16th Century. To compete in such ferocious activities these dogs needed to be strong, aggressive, and courageous. Today's Boxer Dog retains all these traits, but uses them now defensively rather than offensively. Boxers are also intelligent and motivated to please. A keen sense of hearing makes them superlative guard dogs. With family, friends and children Boxers can be playful and patient. They are deliberate and wary with strangers, protective of loved ones. Boxers are sometimes mistaken for pit bull terriers or are referred to as Boxer Bull Dogs.