The most famous of these studies, anthropologist Helen Fisher’s The Anatomy of Love , explains the evolutionary impetus for human tendencies in courtship, marriage, adultery, divorce, and childrearing. Some of her findings are provocative: it seems, for example, that we are hard-wired for serial monogamy and must work very hard to maintain pair-bonds; that highly orgasmic women enjoy an evolutionary advantage; and that flirtation among primates closely resembles the way young men and women in a bar show their sexual interest today.