The biosocial approach -- Genes, environments, and behavior -- Evolutionary psychology, crime, and status -- The neurosciences, conscience, and the softwired brain -- Social class and criminal behavior : myth or reality? -- The class-crime relationship in criminological theories -- Social class and socialization -- Poverty, crime, and developmental neurobiology -- Social stratification, the genome, and social structure -- The nature and nurture of intelligence -- Class mobility : ascription or achievement?.