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a family of mammals of the order Artiodactyla. Unlike the Cervidae (deer), the Bovidae have hollow horns that rest on projections of the frontal bones and that grow and are not replaced during the animal’s life. Upper incisors and canines are absent; the molars have crescent-shaped enamel ridges on the chewing surface. The stomach is complex and multichambered, and the cecum is well developed. The family Bovidae includes cattle, goats, sheep, and antelopes.