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Author: Edward P. Ortleb
Publisher: Lorenz Educational Press
ISBN: 1558630562
Category : Nature
Languages : en
Pages : 36
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Book Description
Color Overheads Included! This book presents a program of basic studies dealing with fish, amphibians, and reptiles. Topics addressed include the anatomy, diversity, and habitats of each of these groups of animals. Each of the twelve teaching units in this book is introduced by a color transparency, which emphasizes the basic concept of the unit and presents questions for discussion. Reproducible student pages provide reinforcement and follow-up activities. The teaching guide offers descriptions of the basic concepts to be presented, background information, suggestions for enrichment activities, and a complete answer key.
Author: David O. Norris
Publisher: Springer Science & Business Media
ISBN: 1461318696
Category : Science
Languages : en
Pages : 627
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Book Description
Comparative endocrinology is one of the most rapidly developing subdis ciplines within the field of endocrinology, and it is having a significant impact on research at the molecular, cellular, organisma1 and environmental levels. Much of the current ferment in endocrinology is in reproductive endocrinology. The purpose of this volume on hormones and reproduction in fishes, amphibians and reptiles is to summarize our present understandings and to identify important research problems to be addressed in the area of comparative reproductive endocrinology. It was inspired by the gathering at Copper Mountain, Colorado, of eminent endocrine scientists from around the world on the occasion of the Tenth International Symposium on Comparative Endocrinology in July, 1985. While preparing for that meeting, we decided that a special volume on reproductive endocrinology was needed to summarize what is known and to stimulate research in particular directions. Why do we emphasize fishes, amphibians and reptiles? First, knowledge about the reproductive endocrinology of these ectothermic vertebrates can provide a clearer picture of the evolution of reproductive hormones and their effects on target organs. This comparative approach can lead to new theories about the evolution of reproductive control mechanisms. Second, studies concerning the reproductive endocrinology of "lower" vertebrates can result in development of "model systems" for application to studies of birds and mammals. Indeed, information about the patterns of reproductive control in ectothermic vertebrates can tell us which are evolutionarily stable and which are labile.
Author: William Swainson
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 384
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Book Description
Author: Robert C. Thomson
Publisher: Univ of California Press
ISBN: 0520964837
Category : Science
Languages : en
Pages : 407
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Book Description
One of the most important hotspots of herpetological biodiversity in the United States, California is home to many endemic amphibians and reptiles found nowhere else on earth. Many of these taxa have unique ecological and morphological specializations, and their management is an important conservation challenge. Increasing climate change impacts, human development, and extreme drought mean many of these species face an ever-greater risk of extinction. California Amphibian and Reptile Species of Special Concern provides an up-to-date synthesis of the current state of knowledge regarding the biology and conservation risks faced by 45 of California’s most sensitive amphibian and reptile species. With the goal of enhancing management based on the best available science, the authors developed a novel set of risk metrics to identify special concern species and the threats they face, including population declines, range size and restrictions, and ecological specializations and niche restrictions. In addition to detailed species accounts, this book provides a quantitative analysis of the conservation status and pressing management issues facing individual species and the state’s amphibian and reptile fauna as a whole. The volume focuses on identifying threats, concrete recommendations for management and recovery, and future research needs. The text is complemented by detailed distribution maps, color photos, and graphs. Written in nontechnical language, California Amphibian and Reptile Species of Special Concern will be a valuable resource to a broad range of users from resource managers, field biologists, and academic herpetologists to students and recreational naturalists. Published in association with the California Department of Fish and Wildlife.
Author: Robert M McClung
Publisher: Hassell Street Press
ISBN: 9781014313492
Category :
Languages : en
Pages : 80
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Katharine Hall
Publisher: Arbordale Publishing
ISBN: 1628555602
Category : Juvenile Nonfiction
Languages : en
Pages : 19
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Book Description
What makes a frog an amphibian but a snake a reptile? Both classes may lay eggs, but they have different skin coverings and breathe in different ways. Pages of fun facts will help kids identify each animal in the class like a pro after reading the fourth book in Arbordale’s Compare and Contrast series. Similar to Polar Bears and Penguins, Clouds and Trees; Amphibians and Reptiles uses stunning photographs and simple non-fiction text to get kids thinking about the similarities and differences between these two animal classes.
Author: Larry L. Shaffer
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 188
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Book Description
Identifies and describes amphibians & reptiles found in Pennsylvania.
Author: Barry Berkovitz
Publisher: Academic Press
ISBN: 012802884X
Category : Science
Languages : en
Pages : 356
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Book Description
The Teeth of Non-Mammalian Vertebrates is the first comprehensive publication devoted to the teeth and dentitions of living fishes, amphibians and reptiles. The book presents a comprehensive survey of the amazing variety of tooth forms among non-mammalian vertebrates, based on descriptions of approximately 400 species belonging to about 160 families. The text is lavishly illustrated with more than 600 high-quality color and monochrome photographs of specimens gathered from top museums and research workers from around the world, supplemented by radiographs and micro-CT images. This stimulating work discusses the functional morphology of feeding, the attachment of teeth, and the relationship of tooth form to function, with each chapter accompanied by a comprehensive, up-to-date reference list. Following the descriptions of the teeth and dentitions in each class, four chapters review current topics with considerable research activity: tooth development; tooth replacement; and the structure, formation and evolution of the dental hard tissues. This timely book, authored by internationally recognized teachers and researchers in the field, also reflects the resurgence of interest in the dentitions of non-mammalian vertebrates as experimental systems to help understand genetic changes in evolution of teeth and jaws. - Features more than 600 images, including numerous high-quality photographs from internationally-recognized researchers and world class collections - Offers guidance on tooth morphology for classification and evolution of vertebrates - Provides detailed coverage of the dentition of all living groups of non-mammalian vertebrates
Author: Mark Blum
Publisher: Chronicle Books
ISBN: 9780811825092
Category : Nature
Languages : en
Pages : 0
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Book Description
See the colorful, comical, and creepy characters of the reptile and amphibian kingdom as you've never seen them before. The emperor newt, boa constrictor, prairie king snake, panther chameleon, poison dart frog, and many others come to life in eye-popping stereoscopic detail and dazzling color in this foolproof 3-D viewing experience. Complete with lenses conveniently bound into the front cover at precisely the right viewing distance, Amphibians & Reptiles in 3-D lets viewers safely observe these intriguing creatures as they crawl, hop, and slither right off the page. With informative captions and a fun glossary of terms, this collection of extraordinary photographs will amaze and delight nature lovers of all ages.
Author: Simone Chinicz Cohen
Publisher:
ISBN: 9788590702719
Category :
Languages : en
Pages : 662
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Book Description
Author:
Publisher:
ISBN: 9781783420629
Category :
Languages : en
Pages : 224
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Book Description
