What makes monogamy more natural than polygamy?

Nothing really at all. In nature, polygamy is the norm in almost all animal species. There are very few examples of monogamy in the natural world. Approximately 3%. Beavers and wolves are common examples. Humans love try and make monogamy synonymous with love. read more

Many people feel that lying about affairs is more natural than being openly polyamorous, but being caught in lies is its own hassle. But then, not everyone is interested in monogamy. The limitations of [serial] monogamy may be unacceptable to some. read more

Although the majority of people seem to choose monogamy in some form, others seem more content and fulfilled with polyamorous relationships (N.B. I'm assuming that you actually meant 'polyamory' in your question rather than polygamy, as the latter is actual marriage to more than one person). read more

polygamy is more natural than monogamy polygamy is more widely practiced in human society now and historically, so that is an indicator, given we are part of the natural world. polygamy is by far most widely practiced in the animal kingdom, even with closely related primates. read more