Human language has long been the subject of study, especially among linguists and linguistic anthropologists or specialists of anthropological linguistics, a branch of cultural anthropology that studies the plurality and complexity of language from a variety of approaches and perspectives, including history, structure, function, and its connection to cultural practices and behaviors. Linguistic anthropologists, for instance, study such themes as the use of language in various social settings, the relationship between language and social relations, or the interplay between language and other cultural aspects.