Some orthodox Jewish sects advocate polygyny today, and some scholars believe that the Talmud contains passages suggesting tolerance or even encouragement of polygyny. The Koran states that a man is allowed up to four wives, but only if he can support them and treat them all equally.
Many Islamic societies continue to allow polygamy, but usually only the most affluent men can afford multiple wives.
Polyamory is the concept of being in love with more than one person at one time.
Polygamists practice polyamory, but polyamorists don't necessarily practice polygamy.
A man can father many children in a short period, while a woman is limited to one pregnancy every nine months.
If a successful man has many wives, he can pass on his genes more often.
The Nyinba people of Nepal practice fraternal polyandry.
Many African tribes, Native American tribes and pre-Christian Celts practiced polygamy, often without the conservative restraints on the sexual aspects of it that characterize Mormon polygamy [ref].Recently, child welfare officials allege in court documents that the Fundamentalist Church of Jesus Christ of Latter Day Saints outside of Eldorado, Texas, was "rife with sexual abuse, with girls spiritually married to much older men as soon as they reached puberty and boys were groomed to perpetuate the cycle [source: AP]." In 1997, Warren Jeffs, the former church leader, was prosecuted and found guilty on two charges of rape by accomplice.They may have living arrangements in which multiple adults form one family, share economic burdens, care for children and share sexual access with one another.However, they do not usually attempt to form a legal marriage.