double unilineal descent

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• descent — /di sent /, n. 1. the act, process, or fact of descending. 2. a downward inclination or slope. 3. a passage or stairway leading down. 4. derivation from an ancestor; lineage; extraction. 5. any passing from higher to lower in degree or state;… …   Universalium

• Western Africa — ▪ region, Africa Introduction       region lying south of the Sahara and east and north of the Atlantic Ocean. It is latitudinally divided into two parallel belts of land: the western portion of the Sudan, a geographic area that stretches across… …   Universalium

• Kinship — For other uses, see Kinship (disambiguation). Relationships …   Wikipedia

• Cousin marriage — Charles Darwin and his wife Emma were first cousins. Cousin marriage is marriage between two cousins. In various jurisdictions and cultures, such marriages range from being considered ideal and actively encouraged, to being uncommon but still… …   Wikipedia

• pre-Columbian civilizations — Introduction       the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …   Universalium

• Parallel and cross cousins — In discussing consanguineal kinship in anthropology, a parallel cousin (or ortho cousin) is a cousin from a parent s same sex sibling, while a cross cousin is from a parent s opposite sexed sibling. So a parallel cousin is the child of the father …   Wikipedia