This volume analyzes the behavioral interactions between infant and adult male baboons. The result is the first quantitative description of infant-adult male relations for any higher primate, including humans. The idea that emerges is that infant-adult male relations are far more complex than the mere paternal caretaking or exploitation that has previously been assumed, and these relations are specific, long-term, reciprocal, and beneficial to both infants and the adult males. The book also deals with many current topics of interest, including parental investment, kidnapping, altruism, food sharing, agonistic buffering, adoption, and infanticide.