“…Although evolutionary theorists have agreed about the general principles of sex differences in sexual selection and parental investment, there are a number of alternative hypotheses about how these differences apply to humans (e.g., Buss & Schmitt, 1993;Gangestad & Simpson, 1990Graziano, Jensen-Campbell, Todd, & Finch, 1997;Hazan & Diamond, 2000;Hrdy, 1999;Kenrick et al, 1990;Kenrick, Groth, Trost, & Sadalla, 1993; L. C. Miller & Fishkin, 1997). For example, L. C. Miller and Fishkin (1997) argued that both sexes are primarily inclined toward monogamy, whereas Hrdy (1999) has advanced arguments that primate females in general, and human females in particular, are more promiscuous than is generally thought.…”