The bulldog, also known as the English or British bulldog, is a stout, muscular, medium-sized member of the canine family. It is a brachycephalic breed with a distinctive pushed-in nose and deeply wrinkled face. Bulldogs are the fourth most popular purebred in the United States, and due to their friendly demeanor and loyalty, tend to make excellent family pets.

• Exhibits naturally missing molars and premolars, as well as severe periodontal disease
  
• Skull Length 16.00 cm (6.3 in)
• Skull Width 12.10 cm (4.8 in)
• Skull Height 9.50 cm (3.7 in)