If you had a complete copy of a dinosaur's DNA and the genetic code, you still would not be able to make a dinosaur--or even determine what one looked like. Why? How do animals get their shape and how does shape evolve? In this important book, Nobel laureate Gerald M. Edelman challenges the notion that an understanding of the genetic code and of cell differentiation is sufficient to answer these questions. Rather, he argues, a trio of related issues must also be investigated--the development of form, the evolution of form, and the morphological and functional bases of behavior. "Topobiology" presents an introduction to molecular embryology and describes a comprehensive hypothesis to account for the evolution and development of animal form.

A unique interdisciplinary overview of the way mammals reproduce, this volume synthesizes research done by laboratory physiologists, behaviorists, population ecologists, and animal breeders. F. H. Bronson has drawn together the disparate literature in these areas to provide students and researchers with a comprehensive and biologically integrated approach to the study of mammalian reproduction.
Each chapter presents a wealth of issues and questions, summarizing the current consensus on interpretations as well as viable alternatives under debate. The book is principally concerned with how environmental factors regulate reproduction. Bronson proposes that a mammal's reproductive performance routinely reflects simultaneous regulation by several environmental factors that interact in fascinatingly complex ways. Environment is defined broadly, and the chapters give equal weight to ecological and physiological factors when considering how variables such as food availability, ambient temperature, photoperiod, and social cues interact to regulate a mammal's reproduction. Particular attention is given to seasonal breeding, and a taxonomically arranged chapter underscores the importance of comparative and evolutionary biology to an understanding of mammalian reproduction.
"Mammalian Reproductive Biology" is a powerful argument for the value and importance of interdisciplinary approaches to research. Its almost 1,500 references constitute the most comprehensive bibliography to date on this topic. Bronson also gives detailed consideration to promising areas for future research. Well organized, carefully planned, and clearly written, this book will become standard reading for scientistsconcerned with any aspect of mammalian biology.

The first thing children ask about sex is typically, "Where do babies come from?" This, the most perplexing scientific question of all time, was hailed by the ancient Greeks as "the mystery of mysteries". Throughout history the most intelligent and well-educated men and women have struggled to understand how we reproduce, and the full picture is far from complete. In the mid-17th century, a theory of reproduction - preformation - sparked an intensely heated debate that continued for over 100 years. Preformation proposed that miniature creatures waiting to be born existed inside each potential parent much like a Russian nesting doll. It was thought that God placed these beings during Creation and predetermined the precise moment that each would unfold and exist. In "The Ovary of Eve", Clara Pinto-Correia traces the fascinating and often-amusing history of this much-maligned theory, ultimately revealing its critical influence on the modern view of conception. Opinion on preformation was sharply divided. "Ovists" believed that preformed individuals existed in the egg, but "spermists" argued that the locus of perfection before birth was in the sperm. This controversy ranged beyond the narrow confines of biology. Most scholars were reluctant to allow perfection to women. After all, these debates occurred in a culture which held women responsible for the Fall and original sin and which saw women as imperfect or incomplete males. Yet spermism entailed a formidable moral dilemma, - why would God allow millions of preformed individuals to die with each ejaculate? Pinto-Correia recounts this controversy in all its complexity, revealing the religious, cultural and social climate of the day. Acknowledging that several modern authors have presented preformation as little more than an entertaining interlude in the study of reproduction, Pinto-Correia nonetheless seeks to recast preformation as an important theory with a precious legacy. Her book shows that the basic tenets understood by the old preformationists are still a crucial part of developmental biology and effect such state-of-the art techniques as cloning.

Covering both the internal and external incubation of offspring, this book provides a biology-rich survey of the natural history, ecology, genetics, and evolution of pregnancy-like phenomena. From mammals and other live-bearing organisms to viviparous reptiles, male-pregnant fishes, larval-brooding worms, crabs, sea cucumbers, and corals, the world's various species display pregnancy and other forms of parental devotion in surprisingly multifaceted ways. An adult female (or male) can incubate its offspring in a womb, stomach, mouth, vocal sac, gill chamber, epithelial pouch, backpack, leg pocket, nest, or an encasing of embryos, and by studying these diverse examples from a comparative vantage point, the ecological and evolutionary-genetic outcomes of different reproductive models become fascinatingly clear.

John C. Avise discusses each mode of pregnancy and the decipherable genetic signatures it has left on the reproductive structures, physiologies, and innate sexual behaviors of extant species. By considering the many biological aspects of gestation from different evolutionary angles, Avise offers captivating new insights into the significance of "heavy" parental investment in progeny.

The keeping of zoo animals is a central tool in the conservation of some of the world's most fascinating, yet threatened, species. But how do zoos operate on a day-to-day basis? What are the key challenges they face in trying to feed, manage, and keep healthy the animals in their care? How can they play their part in conserving biodiversity? Zoo Animals: Behaviour, Management and Welfare addresses the key questions surrounding the keeping of exotic animals in captivity, and reveals how we can apply our ever-growing understanding of animal behaviour and use an evidence based approach to ensure zoo animals are managed as effectively as possible. Drawing on their extensive experience of zoo research, practice, and teaching, the authors blend together theory with a broad range of both mammalian and non-mammalian examples to give a highly-readable overview of this burgeoning field. Zoo Animals: Behaviour, Management, and Welfare is the ideal resource for anyone needing a thorough grounding in this subject, whether as a student or as a zoo professional. Online Resource Centre The Online Resource Centre to accompany Zoo Animals features: For all readers: * Updates - surveys of key developments in the field * Multiple choice questions with instant feedback, to aid self-assessment For registered adopters of the book: * Figures from the book in electronic format and full colour, available for download

Since the appearance of the second edition of Sydney A. Asdell's widely used Patterns of Mammalian Reproduction in 1964, the field of reproductive physiology has expanded dramatically. Accordingly, this revision adopts a different structure from previous editions, substituting empirical delineations for physiological interpretations. With the emphases now on a presentation of the published facts of mammalian reproduction, it provides a thorough compilation of what is known about the basic reproductive biology of each of the 4300 mammalian species.To gather information, the authors examined more than 20,000 publications, dating up to 1992. They used primary sources as much as possible, supplementing them with English translations of Russian, Finnish, Chinese, and Japanese journals. The data are presented in taxonomic order. Each familial account summarizes the pattern of reproduction for the family and provides lists of citations arranged by topic of the literature on the endocrinology, reproductive anatomy, and reproductive physiology of the family. Following each account is a tabular listing of species-specific data for neonatal mass and size, weaning mass and size, litter size, age at sexual maturity, estrous cycle length, gestation length, lactation length, number of litters per year, and seasonality of reproduction. For each of these reproductive variables, the range of data gleaned from the literature is given, together with the source of each value listed.Virginia Hayssen is Assistant Professor of Biology at Smith College. Ari Van Tienhoven is Professor of Animal Physiology, Emeritus, at Cornell University. Ans Van Tienhoven assisted in the compilation of data for the book.

This series of volumes represents a comprehensive and integrated treatment of reproduction in vertebrates from fishes of all sorts through mammals. It is designed to provide a readable, coordinated description of reproductive basics in each group of vertebrates as well as an introduction to the latest trends in reproductive research and our understanding of reproductive events. Whereas each chapter and each volume is intended to stand alone as a review of that topic or vertebrate group, respectively, the volumes are prepared so as to provide a thorough topical treatment across the vertebrates. Terminology has been standardized across the volumes to reduce confusion where multiple names exist in the literature, and a comprehensive glossary of these terms and their alternative names is provided.
*A complete, essential and up to date reference for research scientists working on vertebrate hormones and reproduction - and on animlals as models in human reproductive research.
*Covers the endocrinology, neuroendocrinology, physiology, behaviour and anatomy of vertebrate reproduction.
*Structured coverage of the major themes for all five vertebrate groups allows a consistent treatment for all.
*Special chapters elaborate on features specific to individual vertebrate groups and to comparative aspects, similarities and differences between them.

This seven-volume series is the most extensive treatise on early life histories of the freshwater fishes of North America. It represents the state-of-the-art in fishery biology and provides a systematic approach to the study of early life histories of all the fishes in this region. Each volume contains distinguishing characteristics and a pictorial guide to the families of fishes in the OR Drainage, followed by chapters on the families. This series fills a gap in the literature, providing information on the spawning habitat requirements, reproductive behavior, and ecological relationships during the first few months of life for most species. This fifth volume examines the families aphredoderidae through sciaenidae.

The second of a two-part volume reviews major recent accomplishments in elucidating vitellogenic--egg maturation--processes at the cellular, biochemical, and molecular biological levels. The 12 articles focus on insects, for which vitellogenesis has been thoroughly researched. Among their topics are the biosynthesis and processing of insect vitello

The beginning of life may be a miracle to some, and a mystery to others, but it is certainly one of the most exciting and perhaps controversial fields of scientific investigation in the 21st century. Among the metazoa, life begins when an egg is fertilized by a sperm. The sperm provides a genetic blueprint from the father and perhaps some critical proteins. The egg provides a genetic blueprint from the mother together with a large reservoir of mRNAs and proteins that are required for DNA replication, cell division and the onset of zygotic gene expression. All of the thousands of genes in these two mature gametes are transcriptionally silent and remain so until fertilization.

This work focuses on three biological systems, providing the reader with a clear understanding of the current state of affairs, and the ability to identify common principles as well as critical differences that are responsible for beginning the process of animal development.

The essays presented will be of practical value to all those who are interested in improving fertilization "in vitro," in designing novel methods of contraception, in developing preimplantation genetic diagnosis for various diseases, in cloning animals by transplanting nuclei from adult cells to an enucleated egg, and in the application of embryonic stem cells to curing genetic diseases or replacing damaged tissues. But above all, this volume is offered to those who simply have an insatiable curiosity about life and its beginnings.