who are unable to bear children, find fulfillment in the children and family provided by a husband taking additional wives. Some of the men indicated that they were pressured by their parents to marry another wife, who could contribute additional income to the family. Some of the young polygynous men indicated that they were trapped in polygyny because of the large number of single women who needed and were willing to take them as husbands although they were already married. Most of those second and third wives were older women who had not yet married. Nigeria Customary law, one of the three legal systems in operation in Nigeria (the other two being Nigerian common law and Sharia law) allows for one man to legally marry more than one woman. Unlike those marriages recognized by Sharia, there is no limit to the number of legal wives allowed under customary law. Currently polygyny is most common within royal and noble families within the country, and is largely practiced by the tribes native to its north and west. Although far less popular there, it is nonetheless also legal in Nigeria's east and south. Polygyny varies according to a woman's age, religion and educational experience. Research conducted in the city of Ibadan, the second largest city in Nigeria, shows that non-educated women are significantly more likely (58%) to be in a polygynous union compared to college educated women (4%). Followers of traditional African religions are expected to have as many wives as they can afford. Muslim men are allowed up to 4 wives and only if they can be provided for and treated equally. Christians are typically (and expected to be) monogamous. Among the Ngwa group in Eastern Nigeria, studies show that 70% of polygynous marriages consist of illiterate men and women, compared to 53% in monogamous marriages. Malawi While polygynous marriages are not legally recognized under the civil marriage laws of Malawi, customary law affords a generous amount of benefits to polygynous unions, ranging from inheritance rights to child custody. It has been estimated that nearly one in five women in Malawi live in polygynous relationships. Efforts to abolish the practice and de facto recognition of polygyny have been widely apparent throughout the recent years in Malawi; led mainly by anti-AIDS organizations and feminist groups. An effort led in 2008 to outlaw polygyny in the country was fiercely opposed by Islamic religious leaders,