A term in cultural anthropology describing the simplest type of human social organization consisting of a small number of nuclear families (30-50 people) who are informally organized for subsistence and security purposes. Bands are egalitarian and based mainly on kinship and marriage and the division of labor is based on age and sex. Bands may also be integrated into a larger community, usually called a tribe. Bands exist in sparsely populated areas and use primitive technologies (and are often hunters and gatherers) - ranging from the desert-dwelling Australian Aborigines, the Pygmies of the Congo rain forests, and the Kaska Indians of the Yukon. Bands often moved seasonally to exploit wild (undomesticated) food resources.