The aim of Advances in the Study of Behavior is to serve scientists engaged in the study of animal behavior, including psychologists, neuroscientists, biologists, ethologists, pharmacologists, endocrinologists, ecologists, and geneticists. Articles in the series present critical reviews of significant research programs with theoretical syntheses, reformulation of persistent problems, and/or highlighting new and exciting research concepts. Volume 34 is purely eclectic and illustrates the breadth of behavior research. Contents include sexual conflict among insects, the evolution of sexual cannibalism, odor processing and activity patterns in honeybees, hormone secretion in vertebrates, bird song organization, food transfer in primates, game theory approaches to mutualism, as well as neural mechanisms of learning and memory and how these change during infant development.