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socially sanctioned union that reproduces the family. In all societies the choice of partners is generally guided by rules of exogamy (the obligation to marry outside a group); some societies also have rules of endogamy (the obligation to marry within a group).
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monogamya MARRIAGE rule permitting only one partner to either sex. It may include prohibitions on remarriage, but where it does not the terms ‘serial monogamy’ or ‘serial POLYGAMY’ are sometimes used.
in animals, a condition existing between the sexes by which the male mates with one particular female for a relatively long period of time and usually participates in caring for the offspring. Most birds, including swans, storks, eagles, and vultures, have a single mate for several years or, in some cases, for life. Other birds mate for only one season; they separate after rearing the fledglings (for example, geese), immediately after nest building, or before egg laying (many ducks). Among mammals, the ape has a single mate for several years; wolves, arctic foxes, common foxes, badgers, ermines, and beavers rarely couple for more than one season. Monogamous animals include those insects and other invertebrates in which both sexes (or only the males) die soon after a single mating (the females die after egg laying).