At the time, Caesar was a powerful and ambitious political player (), and he did not want his career thwarted by rumors of his mate’s turpitudinous behavior.But why should Pompeia’s behavior affect his reputation?
According to Trivers, the sex that provides the most parental investment–usually the female–should be more fastidious (should be the “limiting sex”) and the opposite sex should, Trivers’ theoretical contributions laid the groundwork for the creation of what remains, with some complications and some dissenters, the standard paradigm of human mate choice. Schmitt (1993), building upon previous empirical data from Buss that was inspired by the theoretical arguments of Donald Symons (1979), produced the most coherent, elegant, and comprehensive theory of human mating to date: Sexual strategies theory (SST).Although Darwin was flummoxed about the role that beauty played in the evolution of human mating– perhaps relying too much on disparate and inaccurate information from colonialists–modern theories of human mate choice all take Darwinian principles for granted (Grammar, Fink, Moller, & Thornhill, 2003).Furthermore, Darwin noted an important puzzle about human mating behavior that the PGSI takes seriously: women seem to be the decorated sex in humans, using their secondary sexual characteristics (breasts, lips, buttocks) to “charm,” “fascinate,” and “allure” men.From this, it follows that men should be attuned to signals of a woman’s fecundity and parenting skill, and that women should be attuned to signals of a man’s resource procuring and resource investing potentials (wealth, status, reliability).As noted, mate choice is strongly influenced by perceptions of beauty.The statistical result of this process is a pool of fitter organisms, and the long term effect is the evolution of a variegated ecosystem of organisms, including humans.
Later, Darwin (1871) proposed another mechanism of evolutionary change that can be distinguished from natural selection proper: sexual selection.
We call our theory the positional goods and social information (PGSI) theory of human mating.
Modern theories of human mate choice stem from Darwin’s twin theories of natural and sexual selection (1859/1958; 1871; Larson, 2005).
Specifically, Buss and Schmitt, following Trivers (1972), argue that because women are the more investing sex, they are choosier about sexual partners and more focused on procuring important resources for their offspring.
Men, on the other hand, are not limited by parental investment but by the number of fertile partners they can obtain; therefore, they are more likely to pursue a mixture of short-term and long-term mating strategies.
Although Darwin was not the first thinker to propose that life evolves, he was the first to propound a theory of evolution that included a plausible mechanism (natural selection).