This paper, using modern Darwinian theory, proposes an explanation for the increasingly high incidence of breast cancer found among pre-and post-menopausal women living today in westernized countries. A number of factors have been said to be responsible: genetic inheritance (BRCA-1), diet (specifically the increased consumption of dietary fat), exposure to carcinogenic agents, lifetime menstrual activity, and reproductive factors. The primary aim of this paper is to demonstrate the value of a perspective based on Darwinian theory. In this paper, Darwinian theory (...) is used to explore the possibility that the increased incidence of breast cancer is due primarily to the failure to complete in a timely manner the reproductive developmental cycle, beginning at menarche and continuing through a series of pregnancies and lactation. On the basis of comparative data, we assume that most women in ancestral populations began having children before age 20 or so and tended to remain either pregnant or nursing for most of their adult lives. If a woman did not have a child by age 25 or so, she probably would never have one. Therefore, selection would probably not have acted against deleterious traits, such as cancer, that appeared after that age, just as it does not act against such traits in old age. (shrink)

Many anthropological explanations of magical practices are based on the assumption that the immediate cause of performing an act of magic is the belief that the magic will work as claimed. Such explanations typically attempt to show why people come to believe that magical acts work as claimed when such acts do not identifiably have such effects. We suggest an alternative approach to the explanation of magic that views magic as a form of religious behavior, a form of communication that (...) promotes or protects cooperative social relationships. We suggest that all forms of religious behavior involve persons communicating acceptance of a supernatural claim and that this act communicates a willingness to accept nonskeptically the influence of the person making such a claim. Thus, religious behavior communicates a willingness to cooperate with the claim maker and others who accept his or her influence. We suggest that magic, which can be distinguished by the communicated acceptance of the claim that certain techniques have supernatural effects, also promotes cooperation. Different types of magic, including sorcery, love magic, and curing magic, can be shown to communicate different types of messages, such as a threat to use violence to punish unsocial behavior, sexual desire, or concern for a person's well-being. Ethnographic examples are used to support this hypothesis. This approach requires no assumptions about whether the practitioners of magic do or do not believe that the magical acts work as claimed. It attempts only to account for the identifiable talk and behavior that constitute magical acts by examining the identifiable, and often important, effects of these acts on the behavior of others. (shrink)

Totemism, a topic that fascinated and then was summarily dismissed by anthropologists, has been resurrected by evolutionary psychologists' recent attempts to explain religion. New approaches to religion are all based on the assumption that religious behavior is the result of evolved psychological mechanisms. We focus on two aspects of Totemism that may present challenges to this view. First, if religious behavior is simply the result of evolved psychological mechanisms, would it not spring forth anew each generation from an individual's psychological (...) mechanisms? Yet, Australian Totemism, like other forms of Totemism, is profoundly traditional, copied by one generation from the prior ones for hundreds of generations. Regardless of personal inclinations, individuals are obligated to participate. Second, it is problematic to assume that all practitioners of Totemism actually believe their religious claims. We propose an alternative explanation that accounts for the persistence of Totemism and that does not rely on an assumption that its practitioners are preliterate or naive because they have strange beliefs. We focus on Totemism as a cultural mechanism aimed at building and sustaining social relationships among close and distant kinsmen. (shrink)

The growing interest in dual‐inheritance models of human evolution has focused attention on culture as a means by which ancestors transmitted acquired phenotypic characteristics to their descendants. The ability of cultural behaviors to be repeatedly transmitted from ancestors to descendants enables individuals to influence their descendant‐leaving success over many more generations than are usually coclusive fitness. This essay proposes that traditional stories, or myths, can be seen as a way in which ancestors influence their descendant‐leaving success by influencing the behavior (...) of many generations of their descendants. The myth of Oedipus is used as an example of a traditional story aimed at promoting proper behavior and cooperation among kin. This interpretation of the Oedipus myth is contrasted with Freudian and structuralist interpretations. (shrink)