Advances in the Study of Behavior, Volume 51, provides users with the latest insights in this ever-evolving field. Users will find new information on a variety of species, including The troublesome gift: the spermatophylax as a purveyor of sexual conflict and coercion, Conformity and over-imitation: an integrative review of two forms of hyper-reliance on social learning, Copulatory behavior and genital morphology in vertebrates, Sexual...