Cultural variations exist not only among societies but also within societies. Among the major sources of variation within a society are the unique cultural practices of various subgroups. As an American, you share a common culture with all other Americans. American culture is a collection of traits, complexes, and patterns that, by and large, are distinct from those of other societies. In addition to these broad cultural features, some groups in society share values, norms, and behaviors that are not shared by the entire population. The unique cultural characteristics of these groups form a subculture. Most subcultures do not reject all of the values and practices of the larger society. Most subcultures do not present a threat to society. In some instances, however, subcultural practices are consciously intended to challenge the values of the larger society. Sometimes a group rejects the major values, norms, and practices of the larger society and replaces them with a new set of cultural patterns. Sociologists call the resulting subculture a counterculture.