assortative mating

Similar partners reproduce

Assortative mating is a pattern in biology and social science where individuals tend to mate with others who are similar to themselves in certain traits—height, intelligence, social class, or education level, for instance.

Studies show strong assortative mating for educational attainment.

The opposite pattern, where unlike individuals pair up, is called disassortative or negative assortative mating.

The concept appears in genetics, evolutionary biology, and sociology to explain how traits cluster in populations across generations.

Opposites
mate similarity pattern

assortative matingopposites attract

Maxim about complementary pairings

outbreeding · exogamy

Family

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