Animal Sciences is the study of the biology of animals that are under the control of humankind. Focus is on the science and technology dealing with the procurement, breeding, care, health, and selection of animals used in biomedical research and testing. An animal scientist plays an important role in maintaining the nation's food supply. Many work in basic or applied research and development. Basic research seeks to understand the biological and chemical processes by which livestock grow. Applied research uses this knowledge to discover ways to improve the quality, quantity, and safety of agricultural products.