A veterinarian has many career options. About 40 percent of all veterinarians treat small animals or pets. A large number of veterinarians specialize in the health and breeding of cattle, poultry, sheep, swine, or horses. Many inspect meat, poultry and other foods as part of state-sponsored or federally funded public health programs. Others teach in veterinary colleges. Research is an area which continues to grow in veterinary medicine. Veterinarians are conducting research related to animal diseases, food and drug testing, and animal injuries. In addition, because of the many correlative findings linked to animals, medical research teams have been formed to seek knowledge about the prevention and treatment of human diseases.