S.T. Trumbo, Parental Care in Invertebrates. S.S. Crawford and E.K. Balon, Cause and Effect of Parental Care in Fishes: An Epigenetic Perspective. M.L. Crump, Parental Care among the Amphibia. C. Gans, An Overview of Parental Care among the Reptilia. J.D. Buntin, Neural and Hormonal Control of Parental Behavior in Birds. R.S. Bridges, Biochemical Basis of Parental Behavior in the Rat. J.M. Stern, Somatosensation and Maternal Care in Norway Rats. A.S. Fleming, H.D. Morgan, and C. Walsh, Experiential Factors in Postpartum Regulation of Maternal Care. G. Gonzalez-Mariscal and J.S. Rosenblatt, Maternal Behavior in Rabbits: A Historical and Multidisciplinary Perspective. Z. Wang and T.R. Insel, Parental Behavior in Voles. F. Livy, K.M. Kendrick, E.B. Keverne, R.H. Porter, and A. Romeyer, Physiological, Sensory, and Experiential Factors of Parental Care in Sheep. C.R. Pryce, Socialization, Hormones, and the Regulation of Maternal Behavior in Nonhuman Simian Primates. P.A. Gowaty, Field Studies of Parental Care in Birds: New Data Focus Questions on Variation among Females. F. Trillmich, Parental Investment in Pinnipeds. L.A. Fairbanks, IndividualDifferences in Maternal Style: Causes and Consequences for Mothers and Offspring. D. Maestripieri and J. Call, Mother–Infant Communication in Primates. C.T. Snowdon, Infant Care in Cooperatively Breeding Species. Chapter References. Subject Index. Contents of Previous Volumes.