The central focus of this book is the avian respiratory system. The authors explain why the respiratory system of modern birds is built the way it is and works the way that it does. Birds have been and continue to attract particular interest to biologists. The more birds are studied, the more it is appreciated that the existence of human-kind on earth very much depends directly and indirectly on the existence of birds. Regarding the avian respiratory system, published works are scattered in biological journals of fields like physiology, behavior, anatomy/morphology and ecology while others appear in as far afield as paleontology and geology. The contributors to this book are world-renowned experts in their various fields of study. Special attention is given to the evolution, the structure, the function and the development of the lung-air sac system. Readers will not only discover the origin of birds but will also learn how the respiratory system of theropod dinosaurs worked and may have transformed into the avian one. In addition, the work explores such aspects as swallowing mechanism in birds, the adaptations that have evolved for flight at extreme altitude and gas exchange in eggs. It is a highly informative and carefully presented work that provides cutting edge scientific insights for readers with an interest in the respiratory biology and the evolution of birds.

Household stories Coloring book

This version includes textbook and LaunchPad Access. The Economy of Nature, seventh edition maintains this book's signature evolutionary perspective, coverage of population genetics, and emphasis on the quantitative aspects of the field, but it has been completely rewritten for today's undergraduates - with extensive new pedagogy, fresh, and immediate examples (including more aquatic coverage). The pack comes with LaunchPad, containing resources for you and your students; it combines an interactive e-book with high-quality multimedia content and ready-made assessment options, including LearningCurve adaptive quizzing. Curated pre-built units are easy to assign or adapt with your own material, such as video, animations, simulations, readings, quizzes, discussion groups and more.

The Negro a Menace to American Civilization by Robert Wilson Shufeldt, first published in 1907, 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.

Vols. 1-7, and 16 include reports and proceedings of the Royal Zoological Society of New South Wales for 1913-1932/33, 1969/70.

Presents Spinoza’s life and philosophy specifically in logic theory, metaphysics, ethics’ doctrine, political doctrine, religion, and theology.

Avian Surgical Anatomy: Thoracic and Pelvic Limbs by Orosz, Ensley and Haynes, was published in 1992 and has served as a standard guide for those performing orthopedic surgery on birds. That foundational work is out of print but the need for a concise source of avian surgical anatomy has not changed. Our objective in this edition has been to recapture the musculoskeletal anatomy of the original work and to expand the scope to include comprehensive coverage for the clinical management of common fractures of the long bones of birds, primarily raptors. The procedures described have been honed over two decades of development and refinement by clinicians at the Raptor Center at the University of Minnesota. In addition, we have included details of the vascular anatomy of the limbs, further informing the surgeon and clinician. The class Aves includes thousands of species with countless anatomic variations. Although it is impractical to represent every species, birds commonly encountered in private practice and rehabilitation medicine including poultry, pigeons, parrots and birds of prey were chosen for this book. Details of the vascular anatomy of the limbs were obtained by high resolution digital computed tomography imaging of the appendicular skeleton of several diverse bird species. These images provide a unique comparative aspect that clinicians will find useful in conducting surgical procedures. This new information is intended to help the reader better understand skeletal and vascular anatomy, and thus improve interpretation, reporting of findings, treatment and teaching. This new information is intended to help the reader better understand relationships between musculoskeletal and vascular anatomy, helping the surgeon preserve vasculature during complex orthopedic procedures. It is our hope that it will enrich the interpretation, reporting of findings, development of treatment methods and the teaching of management procedures for orthopedic issues in birds. Since publication of the first edition, numerous advances have been made and published relative to avian orthopedics. In this edition, you will find comprehensive discussion of orthopedic conditions, and clinical management that represents best treatment options and current practices. The title of the book has been changed to reflect inclusion of that information. As our knowledge of avian anatomy, health and disease progresses, so does the need for improved resources that convey this valuable information. Over time the information contained herein will also need to be expanded and updated. The authors humbly submit this work to the veterinary and scientific community for review and scrutiny. We hope that it will contribute to the betterment of avian care.