Here are entered works on the condition in which numerous distinct ethnic, religious, or cultural groups coexist within one society. Works on policies or programs that foster the preservation of different cultural identities, including customs, languages, and beliefs, within a unified society such as a state or nation, are entered under Multiculturalism. Works on the blending of elements from two or more cultures, often producing a distinctive successor culture, are entered under Cultural fusion.
--subdivision Variation under individual animals and groups of animals and individual plants and groups of plants for works on diversity or variation within a species or group, e.g. Fishes--Variation; Grasses--Variation