The Agricultural Research Service (ARS) is the USDA’s chief scientific, in-house research agency. The agency conducts research to solve technical problems of broad scope and high national priority. This research covers a wide range of critical problems affecting American agriculture and the Nation as a whole, ranging from animal and crop protection and production to human nutrition, food safety, and natural resources conservation. ARS employs over 6,500 scientists and support staff and carries out approximately 700 research projects at over 90 laboratories throughout the USA and in several other countries. For more details, please visit