A deviant subculture is a subculture whose members hold values, norms, beliefs, and behaviours that differ substantially from those of the majority or dominant culture in a society. These subcultures often emerge as a form of resistance or reaction to mainstream norms and may provide alternative ways of life and social identities for their members. Examples of deviant subcultures can include some youth gangs, radical political groups, or groups with unconventional lifestyles. The values and practices of a deviant subculture may be seen as negative or threatening by the wider society, leading to social stigma and conflict. Studying deviant subcultures helps sociologists understand the diversity of cultural expressions within a society and the processes through which certain behaviours and values come to be defined as deviant.