Studies In The Cold Blooded Vertebrates Of Utah

Author : John Van Denburgh
Publisher : Forgotten Books
ISBN 13 : 9780267631223
Total Pages : 730 pages
Book Rating : 4.6/5 (312 download)

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Download or read book The Reptiles of Western North America, Vol. 1 written by John Van Denburgh and published by Forgotten Books. This book was released on 2018-02-09 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Reptiles of Western North America, Vol. 1: An Account of the Species Known to Inhabit California and Oregon, Washington, Idaho, Utah, Nevada, Arizona, British Columbia, Sonora and Lower California' Lizards The term reptile is popularly applied to all cold-blooded vertebrates other than fishes. Thus used, it includes two groups of animals which differ in many important respects. These are the amphibians and the reptiles proper, the former more closely, allied to the fishes; the latter, to the birds. The typical amphibians, such as most frogs, toads, sala manders, and newts, lay their eggs in the water, and the young, for a time, breathe by means of gills, very much as do the fishes. Later on, they undergo a metamorphosis, during which the gills and other larval characteristics dis appear, the tadpole assumes the form and structure of its parents and emerges from the water to breathe air and spend a greater or less portion of its life on land. The skin of our amphibians is not provided with scales, but is smooth or warty, very glandular, and Often covered with a slimy secretion. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.