Anthropology is the study of humans, past and present. It examines human cultures, societies, languages, and how humans have evolved over time. There are four main branches of anthropology: cultural anthropology studies existing cultures; archaeology studies past cultures through artifacts; biological anthropology studies human evolution and genetics; and social anthropology examines how humans behave in social groups. Anthropology takes a holistic perspective by considering biological, social, linguistic, and cultural factors that influence human behavior and development.