Anthropology is the study of human societies and cultures, both past and present. It includes the study of human origins, cultural diversity, and social change. Anthropologists use various techniques to investigate human communities throughout history. There are four main fields of anthropology: cultural anthropology studies living human cultures; linguistic anthropology examines language and culture; archaeology studies human remains and artifacts to understand the past; and biological anthropology focuses on human evolution, variability, and adaptations using an evolutionary perspective. The overall goal of anthropology is to develop a holistic understanding of what it means to be human through understanding the interplay between human biology, language, and culture.