Anthropology is a study in science that focuses on where people originate, how people develop, and the contemporary variations of people.  Anthropology differs from sociology, history, poli-sci, biology, psychology, and economics because anthropology aims to explain in a very broad sense what it means to be human.  Anthropology is the the search for biological, cultural beginnings, and evolution of humankind.  These are the differences between anthropology and the other social sciences.