How to Raise a Puppy moves away from the traditional approach to raising puppies, focused on obedience and control, and instead takes an holistic, dog-centred approach. Drawing on research into how dogs naturally rear their young, and how dogs have evolved to behave and spend their time, it supports a new way of sharing our lives with our dogs. It also offers advice on dealing with some of the common challenges people experience with puppies, and tips for managing adolescence. A much-needed resource for dog trainers, veterinarians and behaviourists to recommend to clients, this conveys a powerful message to help overcome all too common issues so many people have with their puppies. Packed with practical advice, it offers an overdue "puppy perspective", with respect for a dog as a sentient being at its core.

Dramatic changes in the environment, including habitat degradation and climate change, have focused attention on how individuals and populations respond to a shifting biotic and abiotic landscape. A critical step toward meeting this goal is a clear understanding of the capacity of individuals to defend themselves against threats. Changes in water quality and temperature have direct and indirect effects on fishes. Defensive responses can occur at many levels, from cellular to behavioral actions. The authors in this volume have attempted to provide a general view of the current state of knowledge of fish defenses with respect to pathogens, parasites, and predators, and to point out gaps where further study is needed.

Graham Martin takes the reader deep into the world of birds from a new perspective, with a 'through birds' eyes' approach to ornithology that goes beyond the traditional habitat or ecological point of view. There is a lot more to a bird's world than what it receives through its eyes. This book shows how all of the senses complement one another to provide each species with a unique suite of information that guides their daily activities. The senses of each bird have been fine-tuned by natural selection to meet the challenges of its environment and optimise its behaviour: from spotting a carcase on a hillside, to pecking at minute insects, from catching fish in murky waters, to navigating around the globe. The reader is also introduced to the challenges posed to birds by the obstacles with which humans have cluttered their worlds, from power lines to windowpanes. All of these challenges need explaining from the birds' sensory perspectives so that effective mitigations can be put in place. The book leads the reader through a wealth of diverse information presented in accessible text, with over 100 colour illustrations and photographs. The result is a highly readable and authoritative account, which will appeal to birdwatchers and other naturalists, as well as researchers in avian biology. The author has researched the senses of birds throughout a 50-year career in ornithology and sensory science. He has always attempted to understand birds from the perspective of how sensory information helps them to carry out different tasks in different environments. He has published papers on more than 60 bird species, from Albatrosses and Penguins, to Spoonbills and Kiwi. His first fascination was with owls and night time, and owls have remained special to him throughout his career. He has collaborated and travelled widely and pondered diverse sensory challenges that birds face in the conduct of different tasks in different habitats, from mudflats and murky waters, to forests, deserts and caves. In recent years he has focused on how understanding bird senses can help to reduce the very high levels of bird deaths that are caused by human artefacts; particularly, wind turbines, power lines, and gill nets.

The greatest complexity of the immune response is shown by vertebrates which are endowed with innate and acquired immunity. Immunological studies performed mostly in mammals have been the reference for studies in other vertebrates. The study of immunological fish defenses has advanced considerably in recent decades. This has been due to the key status of fish in terms of the evolution of acquired immunity and due to the rapid expansion of aquaculture over this period, wherein disease control is of prime concern. Most of the chapters not only review the current advances on fish immune defenses, but also show perspective for future research. The book will be of interest to scientists involved in fish immunology, fisheries and aquaculture as well as for students of fish biology.

Recent studies have increasingly demonstrated the widespread existence of spatio-temporal variations in the abundance and distribution of species of freshwater fishes, previously assumed not to move between habitats. These movements are often on a seasonal or ontogenetic basis, for spawning, feeding and refuge, and in many cases are fundamental for the successful completion of lifecycles.

This important book provides a single source for a range of previously widely dispersed information on these movements of fish in fresh waters, covering potamodromous fishes as well as the more familiar diadromous species, worldwide. Contents include full descriptions of types of migration and spatial behaviour, the stimulus and capacity for fish to migrate, the effects of climate on patterns of migratory behaviour, a taxonomic analysis (mostly by family) of freshwater fish migration, methods for studying migration, and details of the impacts of man's activities on freshwater fish migration.

"Migration of Freshwater Fishes" provides an excellent and comprehensive reference to which the river manager, biologist or student can now refer to obtain information, advice and current opinion on the migratory behaviour of most taxonomic groups of fishes occurring in fresh water. University libraries and aquatic research stations should also have copies of this essential reference book on their shelves.Well-known international authors.Of great commercial importance to fisheries and professional angling bodies.Draws together much new information in one place.Detailed review of world wide migratory behaviour for most groups of freshwater fishes.Pure and applied relevance, for academics, fisheries scientists, river managers and conservationists.This comprehensive book includes 67 tables and figures and over 1,400 references.

Primatologists have long viewed small fruiting trees, like figs, as the reason for gibbons' territorial and monogamous behavior. However, at Khao Yai National Park in Thailand where gibbons are prevalent, figs are one of the largest trees in the forest. In this long-term field study, Bartlett addresses this apparent contradiction and follows gibbons as their major food sources fluctuate over time. The titles in the Primate Field Studies series impart the comprehensive results of long-term field studies to a broad audience at a critical time. Long-term field studies often have a cohesive story to tell which encompasses many different topics, from group size and food distribution, to social behavior, reproduction, and demography. The comprehensive and accessible monographs can supplement textbooks, or may be used as a stand-alone text in upper-level primatology courses.

Recent polls identify Jane Goodall to be the most recognizable living scientist in the Western world. Her work with chimpanzees at the Gombe Stream Reserve in Tanzania has been renowned as one of the great achievements of scientific research. Her approach to field study, once ridiculed and challenged by the scientific world, has now become the model for other ethologists to use.
In this insightful biography, Meg Greene tells the story of Goodall's life from her early days growing up in England under the influence of her mother, through her experiences as a young protege of anthropologist Louis Leakey pioneering new techniques of investigating chimpanzee behavior in Africa, to her mature career as an expert on chimpanzee social life and her ongoing efforts today to promote the conservation of wildlife.
Greene describes how Goodall's work challenged and changed perceptions of the relations between the primate and human worlds. Contrary to accepted scientific opinion of the time, which viewed chimpanzees as brutish, Goodall found chimps to be capable of a wide range of emotions, including affection, compassion, and love. She also showed that chimps could reason, think, and solve problems. Perhaps most startling, Goodall discovered that chimpanzees could fashion primitive implements from grass, twigs, and leaves, dispelling the notion that humans are the only species that can make tools.
On the personal side, Greene reveals that Goodall found solace in her home at Gombe from the trials of life that included a divorce, the death of her second husband, criticisms from fellow scientists, and a deep spiritual crisis.
This is a fascinating story of a naive young woman who started her work without even a college degree and eventually developed into a dedicated scientist and a world-famous conservationist and humanitarian. For more than 45 years, Jane Goodall has reached out to the world to join in her efforts to aid those who cannot speak for themselves, and to promote respect for all living creatures.

Acoustic Communication in Birds, Volume 1: Production, Perception, and Design Features of Sounds presents the scientific study of bird vocalizations. This book discusses the relations between the physical structure of bird vocalization and their quality as perceived by the recipient. Organized into nine chapters, this volume begins with an overview of the first sound recording of bird sound. This text then outlines some of the complex processes and events between sound production and behavior response to sound. Other chapters consider the study of neural control of vocalizations in birds. This book discusses as well the acoustic information transmitted through the wide range of habitats plays a crucial role in different avian behaviors, including individual and species recognition, territorial defense, mate selection, and song learning. The final chapter deals with a more detailed functional interpretation of a particular sound. This book is a valuable resource for ornithologists, ethologists, and research workers.

To study physiology is to examine how organisms have evolved solutions to the business of living in an inanimate world. Our world is and has always been dominated by physical and chemical forces. A physicist might tell us that all things are physical, while a chemist is more concerned with the elementary nature of reactions. A physical chemist sees the bonds between these views, and a biochemist draws out the organic symphony of the vital pathways. A structural biologist adds shape to the chemical building blocks of life, while a molecular biologist tinkers with these structures.This book is intended as a resource for students and researchers interested in developmental biology and physiology and specifically addresses the larval stages of fish. Fish larvae (and fish embryos) are not small juveniles or adults. Rather they are transitionary organisms that bridge the critical gap between the single-celled egg and sexually immature juvenile. Fish larvae represent the stage of the life cycle that is used for differentiation, feeding and distribution.This book aims at providing a single-volume treatise that explains how fish larvae develop and differentiate, how they regulate salt, water and acid-base balance, how they transport and exchange gases, acquire and utilise energy, how they sense their environment, and move in their aquatic medium, how they control and defend themselves, and finally how they grow up.

The most trusted and best-selling textbook on the diverse forms and fascinating lives of vertebrate animals. Covering crucial topics from morphology and behavior to ecology and zoogeography, Donald Linzey's popular textbook, Vertebrate Biology, has long been recognized as the most comprehensive and readable resource on vertebrates for students and educators. Thoroughly updated with the latest research, this new edition discusses taxa and topics such as * systematics and evolution * zoogeography, ecology, morphology, and reproduction * early chordates * fish, amphibians, reptiles (inclusive of birds), and mammals * population dynamics * movement and migration * behavior * study methods * extinction processes * conservation and management For the first time, 32 pages of color images bring these fascinating organisms to life. In addition, 5 entirely new chapters have been added to the book, which cover * restoration of endangered species * regulatory legislation affecting vertebrates * wildlife conservation in a modern world * climate change * contemporary wildlife management Complete with review questions, updated references, appendixes, and a glossary of well over 300 terms, Vertebrate Biology is the ideal text for courses in zoology, vertebrate biology, vertebrate natural history, and general biology. Donald W. Linzey carefully builds theme upon theme, concept upon concept, as he walks students through a plethora of topics. Arranged logically to follow the most widely adopted course structure, this text will leave students with a full understanding of the unique structure, function, and living patterns of all vertebrates.

Part of the Prentice Hall's Primate Filed Studies series. This text can be used for any undergraduate or graduate course with a primate behavior or primate ecology component. It can also be used as supplemental reading, for any advanced animal behavior class. There are very few books that address the biology of nocturnal primates. There are even fewer that delve with any detail regarding the behavior of specific species. These animals are difficult to follow. Their diminutive size, the thickness of the vegetation, and their nocturnal habits, make the study of their habits a demanding task.Through a trial of patience, Sylvia Atsalis has undertaken this task. Here she provides an in depth view at the life and behavioral patterns of these tiny primates. A Natural History of the Brown Mouse Lemur provides the most complete look at the behavior and ecology of mouse lemurs.

Sasol First Field Guide to Birds of Prey of Southern Africa provides fascinating insight into the birdlife of the region. With the help of full-colour photo graphs and distribution maps, and easy-to-read text, the young adult and budding naturalist will be able to identify the more common birds of prey in southern Africa, discover where they live, and learn about their unique feeding and nesting habits.

These original contributions on the evolution of primates and the techniques for studying the subject cover an enormous range of material and incorporate the work of specialists from many different fields, showing the necessity of a multidisciplinary approach to problems of primate morphology and phylogeny. Collectively, they demonstrate the concerns and methods of leading contemporary workers in this and related fields. Each contributor shows his way of attacking fundamental problems of evolutionary primatology.The range of findings in this book include new clues to the evolution of the middle ear and the subsistence behavior of early primates, a persuasive critique of the Smith-Jones hypothesis that many features of primate cranial morphology are adaptations to the special vicissitudes of arboreal habitation, the remarkable association of relative muscle mass in the hands and feet of catarrhine primates with the particularities of prehensile behaviors, the wealth of behavioral data that may be obtained by the concentrated study of certain primates in the vicinity of waterholes, the striking differences between inferences about the same behavioral phenomena that are based on long-term as opposed to short-term observations of one primate social group, and the strategy of sophisticated mathematical techniques for elucidating biomechanical, evolutionary, and behavioral problems.Each chapter conveys the status and progress of research in these and other particular areas of special interest, pointing the way toward further clarification of the functional biology and phylogeny of primates through the application of relatively new techniques or the comprehensive employment of available methods. No attempt is made to smooth over controversial points of view, or to endorse a single uniform model of primate evolution. This work will be an important reference for evolutionary and physical anthropologists, evolutionary biologists, comparative morphologists, human anatomists, behavioralists, and students of evolution.

This book provides a comprehensive treatment of all the Pleistocene species in Europe, classified according to modern taxonomic principles. For each species there is a description of its descent and migration history, its range, and its mode of life.

The first version of this book was a semi popular paperback in the Swedish Aldus series. The present edition is completely rewritten and greatly expanded, but retains the non-technical approach to make the story accessible to readers with varying backgrounds. The first part of the book is an outline of the Pleistocene history of Europe, with its climatic changes and succession of mammalian faunas. In the second part are listed all the species of Mammalia known from the Pleistocene and Postglacial of Europe, with the evolution, range in time and space, and mode of life set down for each species, as far as known. The final part is an evaluation of the story in terms of evolution and palaeogeography.

The author begins with a description of the floral and faunal succession in Europe, from the Villafranchian period, when climatic changes were moderate, to the increasing temperature oscillations of the later Pleistocene, with its recurrent faunal revolutions. Against this background Kurten then deals with the whole range of the mammalian species, and his account is fully illustrated by reconstructions and text figures showing skeletal and odontological characters. The book concludes with an analysis of the material available for this study, which throws fresh light on several aspects of zoogeography, evolution, and ecology.

This is the most complete account of the mammalian species of Europe yet to appear, and will be of great value to all paleontologists.

"Bjrn Kurtun" (1924-1988) was lecturer in palaeontology at the University of Helsinki. He is well known for his studies of the Pleistocene carnivores and of human evolution. He was a recipient of Unesco's Kalinga Award. Some of his most famous publications include "On the Variation and Population Dynamics of Fossil and Recent Mammal Populations" and "Pleistocene Mammals of North America."

The laws of animal behavior have been revised and revealed through research performed by zoologists, physiologists and experimental psychologists. Each has contributed much. Their main meeting ground has been the study of mammals, especially rats. This classic book is unique in bringing together the principal conclusions of these researchers in a compact, well illustrated, and lucid form.

The author himself made important original contributions to wild rat behavior; his account of "white rat psychology" and of relevant work on other species is equally authoritative. Experience as a teacher enabled him to write an unusually logical and comprehensive text, suitable for students of zoology, psychology and medicine.

This book belongs to no particular school of biology or psychology. Rather it admits the work of all schools and strict adherence to none. The principal topics covered include: movement in the living space; feeding behavior; social and reproductive behavior; the analysis of "instinct"; the analysis of learned behavior; "motivation" and "drive"; the brain and behavior. The book includes a full, carefully selected bibliography, current up to the time of original publication of the original edition.

Those who have been privileged to watch baboons long enough to know them as individuals and who have learned to interpret some of their more subtle interactions will attest that the rapid flow of baboon behavior can at times be overwhelming. In fact, some of the most sophisticated and influential observation methods for sampling vertebrate social behavior grew out of baboon studies, invented by scientists who were trying to cope with the intricacies of baboon behavior. Barbara Smuts' eloquent study of baboons reveals a new depth to their behavior and extends the theories needed to account for it.

While adhering to the most scrupulous methodological strictures, the author maintains an open research strategy--respecting her subjects by approaching them with the open mind of an ethnographer and immersing herself in the complexities of baboon social life before formulating her research design, allowing her to detect and document a new level of subtlety in their behavior. At the Gilgil site, described in this book, she could stroll and sit within a few feet of her subjects. By maintaining such proximity she was able to watch and listen to intimate exchanges within the troop; she was able, in other words, to shift the baboons well along the continuum from "subject" to "informant." By doing so she has illuminated new networks of special relationships in baboons. This empirical contribution accompanies theoretical insights that not only help to explain many of the inconsistencies of previous studies but also provide the foundation for a whole new dimension in the study of primate behavior: analysis oft he dynamics of long-term, intimate relationships and their evolutionary significance.

At every stage of research human observers have underestimated the baboon. These intelligent, curious, emotional, and long-lived creatures are capable of employing stratagems and forming relationships that are not easily detected by traditional research methods. In the process of unraveling their complex social relationships, Smuts has revealed that these masters of strategy and aggressive competition are equally capable of patience, tenderness, and concern.

"Barbara B. Smuts" is professor of psychology and anthropology, University of Michigan, Ann Arbor. She is also the author of Primate Societies.

A charismatic and arresting bird, the Painted Stork inhabits the plains and wetlands of India and Southeast Asia. This near-threatened species provides a good model through which to explore a variety of ecology and conservation issues. As a colonial nester, it is also useful for considering questions related to evolution and the development of avian coloniality. The Painted Stork sometimes nests opportunistically in the middle of large cities – the Delhi Zoo colony, for instance, has been active since 1960. This offers a splendid opportunity to study the species at close range, as attested by this book's lively photographic component. The Painted Stork is an important indicator of its wetland habitats, which themselves are highly threatened. Since environmental toxins, particularly organochlorine pesticides, travel rapidly along aquatic food chains, the study of piscivorous birds like the Painted Stork assumes special significance. Equally vulnerable today are the nesting colonies, located in marshes, village reservoirs and the wider countryside, including in urban settings. Perhaps because their natural nesting areas are becoming scarce due to habitat loss, colonial waterbirds look for suitable sites in parks and gardens. Hence, the behaviour of this species reflects changes occurring in its environment. Birds also help us monitor the effects of global climate change, and one of the most significant dimensions of the Painted Stork is its dependence upon the monsoon. How exactly do these seasonal rains govern the food cycles in wetlands? And what happens when the monsoon fails? Covering all aspects of Painted Stork ecology, behaviour, conservation and its relationship with humans, this accessible monograph contains a wealth of new insights.

'A must-read' New Scientist 'Fascinating' Greta Thunberg 'Enthralling' George Monbiot 'Brilliant' Philip Hoare A thrilling investigation into the pioneering world of animal communication, where big data and artificial intelligence are changing our relationship with animals forever In 2015, wildlife filmmaker Tom Mustill was whale watching when a humpback breached onto his kayak and nearly killed him. After a video clip of the event went viral, Tom found himself inundated with theories about what happened. He became obsessed with trying to find out what the whale had been thinking and sometimes wished he could just ask it. In the process of making a film about his experience, he discovered that might not be such a crazy idea. This is a story about the pioneers in a new age of discovery, whose cutting-edge developments in natural science and technology are taking us to the brink of decoding animal communication - and whales, with their giant mammalian brains and sophisticated vocalisations, offer one of the most realistic opportunities for us to do so. Using 'underwater ears,' robotic fish, big data and machine intelligence, leading scientists and tech-entrepreneurs across the world are working to turn the fantasy of Dr Dolittle into a reality, upending much of what we know about these mysterious creatures. But what would it mean if we were to make contact? And with climate change threatening ever more species with extinction, would doing so alter our approach to the natural world? Enormously original and hugely entertaining, How to Speak Whale is an unforgettable look at how close we truly are to communicating with another species - and how doing so might change our world beyond recognition.

In this book, Hans Kummer, one of the world's leading primate ethologists, examines the patterns of social interaction among primates. He examines this social behavior from the fundamentally biological viewpoint of evolutionary adaptation as part of the survival mechanisms for the species. Recognizing that all activity is constituted in part of genetic programming and in part of adaptive behavior, he explores the borderline area between the genetic and the "cultural." By use of astute observation and clever experimentation he shows that many aspects of social behavior are inherited, and differentially inherited among various primate groups. These data also show, however, that the individuals and troops learn much in primate social life and that these forms are responsive to particular ecological situations. Drawing heavily on knowledge gleaned from his own well-known studies of the Hamadryas baboon, Dr. Kummer introduces the reader to the daily life of a particular primate society. From this sample case, he proceeds to a more general characterization of primate societies, using as examples the great apes and monkeys of Africa, Asia, and South America and particularly the widely studied terrestrial monkey species. The particularities of primate communication, social structure, and economy are described and special attention is devoted to the primate counterparts of kinship and age groups-behavioral differences based on age and sex, and mating and grouping systems. This is followed by a chapter dealing with the ecological functions of the major parameters of primate social life, such as group size and the coordination of activities within it-dominance, leadership systems, and spatial arrangements. The second part of the book is concerned with the origins of behavioral traits of primates, discussed from phylogenetic, ecological, and cultural points of view, again using data-based examples. Dr. Kummer explains why some traits have not evolved that would have been adaptive, and traces the rise of several secondary functions in their place. The final section of- the book confronts man with his fellow primates, emphasizing the probable limits imposed upon human culture by the existing phylogenetic heritage. Hans Kummer earned his Ph.D. in zoology from the University of Zurich. His research projects include study of the spatial and fami1y organization of primate groups at the Delta Regional Primate Research Center at Covington, La., and three years of field study of the social behavior of baboons in Ethiopia. Dr. Kummer has contributed articles to many journals and symposia. Since 1969, he has been Assistant Professor of Zoology at the University of Zurich.

Ethical Debates in Orangutan Conservation explores how conservationists decide whether, and how, to undertake rehabilitation and reintroduction (R&R) when rescuing orphaned orangutans. The author demonstrates that exploring ethical dilemmas is crucial for understanding ongoing disagreements about how to help endangered wildlife in an era of anthropogenic extinction. Although R&R might appear an uncontroversial activity, there is considerable debate about how, and why, it ought to be practised. Drawing on in-depth qualitative research with orangutan conservation practitioners, this book examines how ethical trade-offs shape debates about R&R. For example, what if the orphan fails to learn how to be an orangutan again, after years in the company of humans? What if she is sent into the forest only to slowly starve? Would she have been better off in a cage? Could the huge cost of sending a rescued ape back to the wild be better spent on stopping deforestation in the first place? Or do we have a moral obligation to rescue the orphan regardless of cost? This book demonstrates that deconstructing ethical positions is crucial for understanding ongoing disagreements about how to help our endangered great ape kin and other wildlife. Ethical Debates in Orangutan Conservation is essential reading for those interested in conservation and animal welfare, animal studies, primatology, geography, environmental philosophy, and anthropology.

This authoritative dictionary has been compiled with the aim of giving an overview of the English, German, French and Italian names of mammals. The Basic Table contains, in alphabetical order, the scientific names of families, genera, species and sub-species and synonyms with the identified names detailed in all four languages. These are given in the singular for species and sub-species and in the plural for other terms. The synonyms and subspecies are offered in detail. The editor offers numerous alternative spellings of vernacular names. This dictionary is an outstanding guide for every researcher in mammalogy.

Over the last decade, the study of shark biology has benefited from the development, refinement, and rapid expansion of novel techniques and advances in technology. These have given new insight into the fields of shark genetics, feeding, foraging, bioenergetics, imaging, age and growth, movement, migration, habitat preference, and habitat use. This pioneering book, written by experts in shark biology, examines technologies such as autonomous vehicle tracking, underwater video approaches, molecular genetics techniques, and accelerometry, among many others. Each detailed chapter offers new insights and promises for future studies of elasmobranch biology, provides an overview of appropriate uses of each technique, and can be readily extended to other aquatic fish and marine mammals and reptiles. Including chapter authors who were pioneers in developing some of the technologies discussed in the book, this book serves as the first single-source reference with in-depth coverage of techniques appropriate for the laboratory and field study of sharks, skates, and rays. It concludes with a unique section on Citizen Science and its application to studies of shark biology. This is a must-read for any marine biologist or scientist working in the field of shark biology, as well as marine biology students and graduates.

Learn to maximize tilapia production in different areas around the world Tilapia is the second-most cultured fish species in the world, and its production is increasing each year. However, for several reasons profit margins remain slim. Tilapia: Biology, Culture, and Nutrition presents respected international experts detailing every aspect of tilapia production around the world. Biology, breeding and larval rearing, farming techniques, feeding issues, post-harvest technology, and industry economics are clearly presented. This concise yet extensive reference provides the latest research and practical information to efficiently and economically maximize production in diverse locales, conditions, and climates. Tilapia: Biology, Culture, and Nutrition comprehensively explores all types of tilapia with a detailed biologic description of the fish that takes readers from egg through harvesting. The book authoritatively discusses production issues such as feed nutrition, temperature, water quality, parasites, and disease control to guide readers on how to best encourage fast, efficient growth. Economic and marketing information are examined, including industry data and projections by country. Each chapter approaches a specific facet of tilapia and provides the most up-to-date research available in that area. This resource gives the most current, detailed information needed for effective tilapia farming in one compact economical volume. Extensively referenced with an abundance of clear, helpful tables, photographs, and figures. Tilapia: Biology, Culture, and Nutrition discusses in detail: complete biology, including sex ratios, optimum temperatures for growth and spawning, water quality parameters, and disease tolerance industry predictions hormonal control of growth genetic improvement sex determination, manipulation, and control seed production culture practices earthen and lined pond production culture in flowing water cage culture feed formulation and processing, and feeding management soil, water, and effluent quality saline tolerance levels with optimum rate of acclimation to seawater polyculture of tilapia with shrimp bottom soil conditions nutrient requirements with non-nutrient components parasites and diseases Tilapia: Biology, Culture, and Nutrition is essential reading for aquaculturists, nutritionists, geneticists, hatchery managers, feed formulators, feed mill operators, extension specialists, tilapia growers, fish farmers/producers, educators, disease specialists, aquaculture veterinarians, policy makers, educators, and students.

One of the little known species in the danger of extinction, gymophionan amphibians, are also known as caecilians or apoda. Gymnophiona contains 154 species belonging to 34 genera and 6 families. For many years, studies on the Gymnophiona were disparate and still only a few species have been deeply studied. Fortunately, in recent years, some new works have been published on their systematics, using both the classical methods as well as immunology and molecular biology. New data have also been obtained on the biology, life history, reproductive biology, endocrinology and embryonic development of several species. These fascinating aspects along with other important ones on gymnophionan studies are ably reviewed in this book.

Practical and portable, this is the ultimate field guide to the world's cetaceans. This outstanding new field guide to whales, dolphins and porpoises is the most comprehensive, authoritative and up-to-date guide to these popular mammals. With more than 500 accurate illustrations - complete with detailed annotations pointing out the most significant field marks - Field Guide to Whales, Dolphins and Porpoises covers all 93 species and every subspecies in the world. Many of the world's most respected whale biologists have collaborated on the concise text, which is packed with helpful identification tips from cetacean expert, Mark Carwardine. Mark's informative text is accompanied by up-to-date distribution maps for each species. Beautifully designed, to ensure critical information is quickly accessible, this is an indispensable resource that every whale-watcher will want to carry out to sea.