Animal science jobs include veterinarians, biologists, agricultural researchers, and livestock management positions. There are also opportunities in nutrition, breeding, animal behavior, food processing and manufacturing, and education. Your duties in an animal science job may vary significantly depending on the position. As a veterinarian, for example, your primary responsibilities are to provide medical care for animals, but you may also aid in research to support clinical breakthroughs, herd health, and other facets of animal science.