This document discusses the fields of anthropology, sociology, and political science. It defines anthropology as the scientific study of humans, their evolution, societies, and cultures. Sociology is defined as the scientific study of human social behavior and group dynamics. Political science is the study of governments, political activities, and systems. The document outlines some of the main branches and topics within each field, such as physical anthropology, cultural anthropology, social organization in sociology, and public administration in political science. It provides high-level overviews of the goals and scopes of these three related social sciences.