The Boxer is a medium to large, short-haired dog breed of mastiff-type, developed in Germany. The coat is smooth and tight-fitting; colors are fawn or brindled, with or without white markings. Boxers are brachycephalic, have a square muzzle, mandibular prognathism, very strong jaws, and a powerful bite ideal for hanging on to large prey. The Boxer was bred from the Old English Bulldog and the now extinct Bullenbeisser, which became extinct by crossbreeding rather than by a decadence of the breed. The Boxer is a member of both The Kennel Club and American Kennel Club (AKC) Working Group.
Originally developed in Germany for use as a working dog.
Boxers are known for their playful and energetic nature, making them excellent family pets. They are protective and loyal, which can make them good guard dogs. Boxers require regular exercise and mental stimulation to prevent boredom. They are prone to certain health issues like hip dysplasia and heart conditions, so regular vet check-ups are recommended.
Fawn boxer puppy
Head and body proportions
A brindle boxer
Two fawn Boxers

Friedrich Robert and his boxer, 1894
Boxers on the first boxer exhibition, Munich, 1896
Boxer early genealogy chart
Flocki, the first Boxer
A Boxer puppy
A Boxer on a boat in Lake Lanier, South Carolina
Trainability
Responsiveness to training: —/5