Parenting is one of the most important characteristics defining features of mammals. Recent research has begun to elucidate the biological bases of this behavioral repertoire. The present book brings together the interdisciplinary research of an outstanding group of scientists who present their state-of-the-art findings on the biochemical, neurobiological and behavioral factors that help to regulate parenting in a variety of animals including humans. Among the topics explored are evolutionary theories, brain sexual dimorphisms, endocrine regulation, sensory cue, and experimental factors that are coregulated with the onset of parenting behaviors during pregnancy and at parturition. This in-depth volume includes over 125 illustrations to complement the text, and will be an ideal guide for developmental psychologists, psychobiologists, neuroscientists, clinicians, and all scientists interested in behavioral biology.