Feminists have often been among the most outspoken critics of sociobiology, maintaining that sociobiology is inherently sexist and that it is used to uphold patriarchy. This article examines the latest research by scholars—many of them women—who have used a sociobiological approach to expand our understanding of female behavior. It shows that sociobiology recognizes complexity in human reproductive behavior and that members of both sexes employ a variety of reproductive strategies, depending upon their environments. Women are not necessarily sexually passive within the sociobiological paradigm, and they are not “naturally” parents; moreover, men clearly play a necessary and significant role in parenting. Women do have reproductive interests that are separate from those of men, and these interests clash. Despite these conflicts of reproductive interest, however, men and women can develop cooperative relationships to achieve their mutual goal of raising children to maturity. Patriarchy is not—within the sociobiological paradigm—a natural order between males and females. Sociobiology also does not suggest that women should be restricted to parenting roles; indeed, sociobiological research can provide the basis for greater freedom for both men and women in reproduction and resource acquisition.

Although stratified societies have typically been characterized by intensive polygyny, socially imposed monogamy has developed in the stratified societies of Western Europe. Following a critical review of other theories of socially imposed monogamy, a multivariate, nondeterministic theory is developed. Within this theory, a variety of internal political processes can result in socially imposed monogamy, but this phenomenon—while consistent with evolutionary theory—is underdetermined with respect to (1) evolutionary theory, (2) human nature/nurture (i.e., the characteristics of humans), and (3) external ecological variables. Data on the origins and maintenance of socially imposed monogamy in Western Europe are reviewed, indicating that post-antiquity socially imposed monogamy originated in the late Middle Ages and has been maintained since that period by a variety of social controls and ideologies, including political activities of the Christian Church and, in later periods, of women and lower- and middle-status males. As a result of institutionalized controls on reproduction, non-monogamous Western sexuality has been directed at obtaining psychological rewards deriving from evolved motivational systems (e.g., sexual pleasure, excitement, feelings of dominance, status, or intimacy), but this non-monogamous sexuality has not typically been a major source of increased reproductive success.

In 1990, the U.S. Supreme Court endorsed living wills and other written advance medical directives as the best way for people to indicate their desires regarding end-of-life medical treatment. Congress then enacted the Patient Self-Determination Act (PSDA), which requires most medical facilities to provide information about advance medical directives. However, results from a national survey of hospital and nursing home administrators reveal that the law is having little practical effect on patients and residents. Medical institutions need to institutionalize a more positive approach to advance directives, but other right-to-die policies are also needed.