Final answer:
The Logoli and Irigwe both practice polygyny, a form of polygamy where one man is married to multiple women, often with each wife having her own household. This structure can provide social and economic benefits and is sometimes associated with status within the community.
Step-by-step explanation:
Discussing polygamous marriage among the Logoli and the Irigwe, both groups practice a form of polygamy known as polygyny, which is the union of one man with multiple wives. In this type of marriage, each wife typically has her own household where she lives with her biological children, sharing resources and childcare within the larger family unit. The husband cycles through residing with each wife or maintains a separate dwelling of his own. Within such households, there is often a hierarchy among the wives, and the value placed on these large families can translate to increased social status and political or economic influence within the community.
Polygynous arrangements can be a response to various societal pressures, such as high mortality rates or warfare, and are often considered a sign of status. While polygamy is legal and socially sanctioned in some societies, the specifics of its practice can greatly vary, ranging from formal legal contracts to more informal, enduring relationships acknowledged by the community.