Veterinarians work in the medical field treating and caring for animals. They study and diagnose animal injuries and diseases, perform surgery, set bones, develop diet and exercise plans, and prescribe medicine. Veterinarians work with pets as well as larger animals on farms and in zoos. To become a veterinarian requires completing a 4-year DVM program after first earning a bachelor's degree in a relevant field like biology or zoology. Salaries for veterinarians range from $43,000 to over $140,000 depending on experience and specialty.