According to evolutionary psychologists, namely Robert Wright and David Buss, humans have evolved to support serial monogamy and even the proliferation of infidelity…all for the propagation of genes. Studies performed by Buss et. al suggest that love is a universal human phenomenon (pgs. 262, 284) and that humans subconsciously participate in sexual strategies that may result in the dissolution of a serious relationship for better prospects or infidelity (pg. 265). While Buss does suggest numerous evolutionary explanations concerning infidelity (such as an incompetent or abusive mate or for the proliferation of male genes), Wright centers his article on the precarious position monogamy retains in our current society, aptly named “Our Cheating Hearts.”
Wright is also an evolutionary psychologist, and as such supports Buss’s explanations regarding infidelity, stating that the key reason for a male to practice infidelity, in our ancestral setting, is the possession of markedly greater ‘resources, power or social status than the average Joe’ (pg. 286) This explains male infidelity, but what of female infidelity? Both Buss and Wright demonstrate that female infidelity does indeed occur and does indeed retain an evolutionary background. Women who had sexual relations with various men were more likely to have multiple venues of resources, simply because of the uncertainty of paternity.
Wright argues that monogamy is in a precarious position in our present society/culture due to income inequality, the media and proliferation of an ideal female (or mate) throughout the media and magazines that is above average and that our societies are infinitely more anonymous than our ancestral hunter gatherer societies (in which everyone knew each other). Although these scenarios present obstacles for couples practicing monogamy, I do not believe that the dissolution of monogamous marriage (hetero or homosexual) is necessary. I believe that steps can be taken in order to protect this institution, supported by evolution. Monogamous coupling evolved because this type of relationship between mother and father produced the best environment for raising and caring for young. Some methods that may be undertaken to protect the institution of monogamous marriage include reducing income inequality as Wright states that men of higher socio-economic status are more likely to believe that they should have more than one wife or tend to obtain younger wives (through serial monogamy) and that women are more attracted to men of higher socio-economic status (pg. 288). Also, if men were expected (by law) to be accountable for their children following a divorce, more so than simply child support, the difference between the impact of divorce on men and women would most likely reduce. Women most often are saddled with childcare and are also less likely to remarry and often retain significantly lower socio-economic status. Although these obstacles remain for present day monogamous couples, as well as the evolutionary inherence of wanderlust, the institution of monogamous hetero and homosexual marriage remains an important advantage for child rearing and seems the natural choice for most humans.
Buss, David. "The Evolution of Desire: Strategies of Human Mating." Basic Books, 1994.
Wright, Robert. "Our Cheating Hearts." Time Magazine, August 15, 1994.
