The fifth edition includes- for the first time, stunning color photographs throughout- chapters rearranged and grouped to best reflect phylogenetic relationships, with updated numbers of genera and species for each family- updated mammalian structural and functional adaptations, as well as ordinal fossil histories- recent advances in mammalian phylogeny, biogeography, social behavior, and ecology, with 12 new or revised cladograms reflecting current research findings- new breakout boxes on novel or unique aspects of mammals; new work on female post-copulatory mate choice, cooperative behaviors, group defense, and the role of the vomeronasal system- discussions of the current implications of climate change and other anthropogenic factors for mammalsMaintaining the accessible, readable style for which Feldhamer and his coauthors are well known, this new edition of Mammalogy is the authoritative textbook on this amazingly diverse class of vertebrates.