Echidna


Book Description

"This book is based on Echidnas of Australia and New Guinea, first published as part of the Australian Natural History series"--Preface.




The Eggs of Mammals


Book Description




The Mammalian Egg


Book Description




Mammalian Development


Book Description

"A subject collection from Cold Spring Harbor perspectives in biology."




The Eggs of Mammals (Classic Reprint)


Book Description

Excerpt from The Eggs of Mammals I should like to express my appreciation to Dr. J B. Collip, Dr. H. Selye, Dr. D. L. Thomson, and Dr. W. J Crozier for their kindness in reading the manuscript of this book before publication. Their comments have been taken advantage of in a manner for Which I, not they, em responsible. I em indebted too to Dr. F. H. A. Marshall and Mr. J ohn Ham mond of Cambridge University for encouragement and interest Which led to the undertaking of this monograph, and to my friend and collaborator Dr. E. V. Enzmann Who actively assisted in a number of the investigations herein described. The National Research Council Committee for Problems of Sex and the J osiah Macy J r. Foundation pro vided grants making possible most of my own work, and the preparation of the monograph itself is due in no small measure to their assistance. To the editors and publishers of the following journals I em indebted for permission to reprint the various tables and figures indicated in the text: the American J ournal of Anatomy, the American J ournal of Physiology, the Anatomical Record, Archives de Biologie, the Biological Bulletin, the Carnegie I nstitution of Wash ington Publications in Embryology, the J ournal of Anatomy, the J ournal of Experimental Biology, the J ournal of Experi mental M edicine, the J oumal of Experimental Zodlogy, the J ournal of M orphology, the Quarterly Review of Biology, and the Proceedings of the Royal Society. 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.




Animal Eggs


Book Description

Explores the different types of animal eggs, from insects to reptiles, fish, and birds, and describes how different adult animals care for their eggs and the strange places they place them.




Chickens Aren't the Only Ones


Book Description

Ruth Heller's prose and pictures are the perfect means for discovering the variety of oviparous animals and their unique ways of laying eggs.




Ecoviews


Book Description

"The book celebrates the intrinsic worth of all plants and animals in order to motivate people in a unified effort to preserve the Earth's rich array of life forms."--Cover.




The Book of Eggs


Book Description

From the brilliantly green and glossy eggs of the Elegant Crested Tinamou—said to be among the most beautiful in the world—to the small brown eggs of the house sparrow that makes its nest in a lamppost and the uniformly brown or white chickens’ eggs found by the dozen in any corner grocery, birds’ eggs have inspired countless biologists, ecologists, and ornithologists, as well as artists, from John James Audubon to the contemporary photographer Rosamond Purcell. For scientists, these vibrant vessels are the source of an array of interesting topics, from the factors responsible for egg coloration to the curious practice of “brood parasitism,” in which the eggs of cuckoos mimic those of other bird species in order to be cunningly concealed among the clutches of unsuspecting foster parents. The Book of Eggs introduces readers to eggs from six hundred species—some endangered or extinct—from around the world and housed mostly at Chicago’s Field Museum of Natural History. Organized by habitat and taxonomy, the entries include newly commissioned photographs that reproduce each egg in full color and at actual size, as well as distribution maps and drawings and descriptions of the birds and their nests where the eggs are kept warm. Birds’ eggs are some of the most colorful and variable natural products in the wild, and each entry is also accompanied by a brief description that includes evolutionary explanations for the wide variety of colors and patterns, from camouflage designed to protect against predation, to thermoregulatory adaptations, to adjustments for the circumstances of a particular habitat or season. Throughout the book are fascinating facts to pique the curiosity of binocular-toting birdwatchers and budding amateurs alike. Female mallards, for instance, invest more energy to produce larger eggs when faced with the genetic windfall of an attractive mate. Some seabirds, like the cliff-dwelling guillemot, have adapted to produce long, pointed eggs, whose uneven weight distribution prevents them from rolling off rocky ledges into the sea. A visually stunning and scientifically engaging guide to six hundred of the most intriguing eggs, from the pea-sized progeny of the smallest of hummingbirds to the eggs of the largest living bird, the ostrich, which can weigh up to five pounds, The Book of Eggs offers readers a rare, up-close look at these remarkable forms of animal life.