Mate selection is a vitally important process both in the
animal world and amongst humans. Selecting a sexual partner plays a crucial
role in reproduction, and therefore evolution. Interestingly, the reverse is
also true: evolution impacts our mating decisions. Evidence suggests that women’s
mating strategies have been impacted by evolutionary pressures faced by our
ancestors. When a woman chooses a partner, her decision is partially the result
of several psychological factors, perhaps even ones beyond her awareness.
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Research into women’s sexual strategies is conducted from
the perspective of evolutionary psychology. Evolutionary psychology is a
fascinating field because it explores the impacts of evolution beyond the
physical adaptations that species display over time. The core assumptions of
this field are that the mechanisms of the mind, like any other organ, have specific
functional adaptations. Among these mechanisms are adaptations underlying women’s
sexual behavior.
The criterion for sexual selection that would be most favored
by evolution is reproductive success. One of the major challenges to reproductive
success is the unusually high parental investment required for human offspring.
By default, women must invest in their children for a nine month pregnancy, and
for an additional ~2.5 years after that while breastfeeding. Beyond this, human
children are generally not self-sufficient for many years, and require further
care. For females in ancestral times, bi-parental care better ensured their own
reproductive success. Children were much more likely to survive during when
male parents showed investment in their offspring. Therefore, women have
evolved to select partners who are more likely to be invested in their
offspring over a long term. The fact that marriage or other partnership between
parents is an almost universal human concept demonstrates that seeking
long-term commitment is likely an evolutionary adaptation.
In addition, women appear
to have adapted to seek men who can acquire resources for them and their
offspring. In fact, in a study conducted by Li and colleagues, women
demonstrated that in building an ideal mate, ability to acquire resources and
intelligence were necessities, while traits such as personality and kindness
were given less importance. This makes sense given that, at the time evolution
was likely operating on sexual decision-making, acquiring resources such as
food was more difficult, and dictated survival.
Women’s behavior, as almost any man will tell you, is
diverse and complex. It cannot be boiled down to a few factors such as those
listed above. Modern women are not the same as ancestral ones, and can make
choices based on more than reproductive success. However, the particular evolutionary
adaptations discussed above – finding long-term partners and choosing mates
with many resources -are widely observed. This indicates that, in addition to
the conscious considerations of partner preferences made by individuals, most
women have underlying mechanisms of the mind that cause them to pick mates that
would in an ancestral world guarantee reproductive success.
-Author: Nupur Jain
References:
Li, N. P., Bailey, J. M., Kenrick, D. T., & Linsenmeier, J. A. W. (2002). The necessities and luxuries of mate preferences: Testing the tradeoff's. Journal ofPersonality and Social Psychology, 82, 947-955.
Pillsworth, Elizabeth G., and Martie G. Haselton. "Women's Sexual
Strategies: The Evolution of Long-Term Bonds and Extrapair Sex." Web.
<http://www.sscnet.ucla.edu/comm/haselton/webdocs/pillsworth_haseltonARSR.pdf>.
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