Download or read book Catalogue of American Amphibians and Reptiles written by and published by . This book was released on 1963 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of American Amphibians and Reptiles written by American Society of Ichthyologists and Herpetologists. Herpetological Catalogue Committee and published by . This book was released on 1971 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Origin Evolution and Biogeographic History of South American Turtles written by Marcelo S. de la Fuente and published by Springer Science & Business Media. This book was released on 2013-10-17 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extended continental South American turtle record (Norian to Lujanian) allows us to follow the evolution of this reptile clade from its origins. Several significant stem turtle taxa such as: Palaeochersis talampayensis and Condorchelys antiqua provide information on the first steps of turtle evolution. Others such as: Chubutemys copelloi or Patagoniaemys gasparinae provide clues to the origin of the bizarre horned tortoises of the clade Meiolaniidae. The panpleurodiran species such as Notoemys laticentralis or Notoemys zapatocaensis shed light on the origin of modern pleurodiran turtles. This book explores aquatic and terrestrial cryptodiran turtles, South Gondwana pleurodiran turtles, North Gondwana pleurodiran turtles; Meiolaniforms and early differentiation of Mesozoic turtles.

Download or read book Rhinos belong to everybody written by Bernhard Grzimek and published by . This book was released on 1964 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intersexuality in the Animal Kingdom written by R. Reinboth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Richard Goldschmidt' coined the term "intersexuality" in 1915, he intended it to apply to normally dioecious species which exhibit some kind of mixture between male and female characters. However, as knowledge of the bewildering variability present in the sexual orga nization of members of the animal kingdom has increased, the original meaning of the word has changed. Today many authors define inter sexuality as "the presence of both male and female characteristics, or of intermediate sexual characteristics, in a single individual".2 This more extensive and widely accepted concept justifies the title of our book •. Among all the anatomical and physiological features of living organisms the reproductive system has a unique importance for the perpetuation of the species. Conversely, reproductive processes are of little or no account for the viability of the individual. Therefore, within the framework of general biology reproduction has all too often been looked at solely from the point of view of genetics. Lively discussions about genotypic versus phenotypic sex determination long dominated the sci entific literature on sexuality in animals; this one-sided emphasis has tended to obscure many important facets of an organism's ability to reproduce. Recent developments in current biological research have brought the classic problem of sex differentiation into focus again, and the rapid progress being made in comparative endocrinology has added a new di mension to the study of reproductive biology.

Download or read book Grzimek s Animal Life Encyclopedia written by Devra G.. Kleiman and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides information on the evolution and systematics, physical characteristics, distribution, habitat, behavior, feeding ecology and diet, reproductive biology, and conservation status of five orders of mammals, each with species accounts.

Download or read book The Class Reptilia written by Georges baron Cuvier and published by . This book was released on 1831 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of Batrachians and Reptiles of Central America and Mexico written by E. D. Cope and published by . This book was released on 1887 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The IUCN Amphibia reptilia Red Data Book written by Lissie Wright and published by IUCN. This book was released on 1982 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North American Herpetology Or a Description of the Reptiles Inhabiting the United States written by John Edwards Holbrook and published by . This book was released on 1842 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Fossil Turtles of North America written by Oliver Perry Hay and published by . This book was released on 1908 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of Shield Reptiles in the Collection of the British Museum written by John Edward Gray and published by . This book was released on 1855 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Batrachia and Reptilia of Costa Rica written by Edward Drinker Cope and published by . This book was released on 1875 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the Batrachia and Reptilia of Costa Rica : With Notes on the Herpetology and Ichthyology of Nicaragua and Peru by Edward Drinker Cope, first published in 1875, is a rare manuscript, the original residing in one of the great libraries of the world. This book is a reproduction of that original, which has been scanned and cleaned by state-of-the-art publishing tools for better readability and enhanced appreciation. Restoration Editors' mission is to bring long out of print manuscripts back to life. Some smudges, annotations or unclear text may still exist, due to permanent damage to the original work. We believe the literary significance of the text justifies offering this reproduction, allowing a new generation to appreciate it.

Download or read book The South American Herpetofauna Its Origin Evolution and Dispersal written by William Edward Duellman and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book Turtles and Tortoises of the World written by David Alderton and published by Facts on File. This book was released on 2003 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for the previous edition: "An excellent source for research. Highly recommended."—The Book Report While reptiles often receive an ambivalent reaction from the public, turtles and tortoises are surely the exception. People have kept them as pets for centuries and their affection for these creatures with attractively colored shells is reflected in art, literature, and popular culture. Turtles and Tortoises of the World fills a significant gap in available literature on the chelonia turtles, tortoises, and terrapins. Noted naturalist David Alderton presents a comprehensive account of these fascinating creatures, featuring recent chelonian research. The information on lifestyle, habitat, distribution, and human involvement is clear and easy to read. Enhanced by informative maps, as well as many color and black-and-white photographs, this volume emphasizes turtles' and tortoises' diversity of form and adaptability for survival.

Download or read book Catalogue of the Tortoises Crocodiles and Amphisb nians in the Collection of the British Museum written by British Museum (Natural History) and published by . This book was released on 1844 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Morphology and Evolution of Turtles written by Donald B. Brinkman and published by Springer Science & Business Media. This book was released on 2012-08-16 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume celebrates the contributions of Dr. Eugene Gaffney to the study of turtles, through a diverse and complementary collection of papers that showcases the latest research on one of the most intriguing groups of reptiles. A mix of focused and review papers deals with numerous aspects of the evolutionary history of turtles, including embryonic development, origins, early diversification, phylogenetic relationships, and biogeography. Moreover it includes reports on important but poorly understood fossil turtle assemblages, provides historical perspectives on turtle research, and documents disease and variation in turtles. With its broad scope, which includes descriptions of material and new taxa from Australia, Asia, and Europe, as well as North and South America, this work will be an essential resource for anyone interested in the morphology and evolution of turtles. “This volume’s breadth of time, geography, and taxonomic coverage makes it a major contribution to the field and a ‘must have’ for all vertebrate paleontologists.”, James F. Parham, California State University, CA, USA “A comprehensive and sweeping overview of turtle evolution by the top experts in the field that will interest everyone curious about these unique reptiles.” Jason S. Anderson, University of Calgary, Canada “An invaluable addition to the literature that covers the full spectrum of approaches toward understanding the evolution of these noble creatures.” Ann C. Burke, Wesleyan University, CT , USA “A truly comprehensive volume that both the student of fossil turtles, as well as the general reader interested in these enigmatic creatures, will find fascinating.” Tyler Lyson, Yale University, CT, USA​