Momentum Feathers And Wings Beaks And Bills
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Momentum Feathers And Wings Beaks And Bills
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Author : James Frances
language : en
Publisher:
Release Date : 1998
Momentum Feathers And Wings Beaks And Bills written by James Frances and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Birds categories.
"This book discusses where birds live, how they move and how they care for their young.Reading Age: 9-10 yearsText Type: Explanation
Feathers And Wings Beaks And Bills
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Author : James Frances
language : en
Publisher:
Release Date : 1998
Feathers And Wings Beaks And Bills written by James Frances and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Birds categories.
Feathers And Wings Beaks And Bills
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Author : Troll Communications L.L.C.
language : en
Publisher:
Release Date : 2000-01-01
Feathers And Wings Beaks And Bills written by Troll Communications L.L.C. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-01-01 with categories.
Practical Lessons In Agriculture
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Author : Lester Sylvan Ivins
language : en
Publisher:
Release Date : 1915
Practical Lessons In Agriculture written by Lester Sylvan Ivins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1915 with Agriculture categories.
El Hi Textbooks Serials In Print 2003
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Author :
language : en
Publisher:
Release Date : 2003
El Hi Textbooks Serials In Print 2003 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Periodicals categories.
The Vertebrate Integument Volume 2
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Author : Theagarten Lingham-Soliar
language : en
Publisher: Springer
Release Date : 2015-02-18
The Vertebrate Integument Volume 2 written by Theagarten Lingham-Soliar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-18 with Science categories.
The emphasis in this volume is on the structure and functional design of the integument. The book starts with a brief introduction to some basic principles of physics (mechanics) including Newton’s Three Laws of Motion. These principles are subsequently used to interpret the problems animals encounter in motion. It is in only the last 40 or so years that we have begun to understand how important a role the integument plays in the locomotion of many marine vertebrates. This involves the crossed-fiber architecture, which was first discovered in a classic study on nemertean worms. As a design principle we see that the crossed-fiber architecture is ubiquitous in nature. Research on some of the most dynamic marine vertebrates of the oceans – tuna, dolphins and sharks, and the extinct Jurassic ichthyosaurs – shows precisely how the crossed-fiber architecture contributes to high-speed swimming and (in lamnid sharks) may even aid in energy conservation. However, this design principle is not restricted to animals in the marine biota but is also found as far afield as the dinosaurs and, most recently, has been revealed as a major part of the microstructure of the most complex derivative of the integument, the feather. We see that a variety of phylogenetically diverse vertebrates take to the air by using skin flaps to glide from tree to tree or to the ground, and present detailed descriptions of innovations developed in pursuit of improved gliding capabilities in both extinct and modern day gliders. But the vertebrate integument had even greater things in store, namely true or flapping flight. Pterosaurs were the first vertebrates to use the integument as a membrane in true flapping flight and these interesting extinct animals are discussed on the basis of past and cutting-edge research , most intriguingly with respect to the structure of the flight membrane. Bats, the only mammals that fly, also employ integumental flight membranes. Classic research on bat flight is reviewed and supplemented with the latest research, which shows the complexities of the wing beat cycle to be significantly different from that of birds, as revealed by particle image velocimetry. The book’s largest chapter is devoted to birds, given that they make up nearly half of the over 22,000 species of tetrapods. The flight apparatus of birds is unique in nature and is described in great detail, with innovative research highlighting the complexity of the flight structures, bird flight patterns, and behavior in a variety of species. This is complimented by new research on the brains of birds, which shows that they are more complex than previously thought. The feather made bird flight possible, and was itself made possible by β-keratin, contributing to what may be a unique biomechanical microstructure in nature, a topic discussed in some depth. A highly polarized subject concerns the origin of birds and of the feather. Alleged fossilized protofeathers (primal simple feathers) are considered on the basis of histological and taphonomic investigative studies in Chapter 6. Finally, in Chapter 7 we discuss the controversies associated with this field of research. Professor Theagarten Lingham-Soliar works at the Nelson Mandela Metropolitan University, Port Elizabeth and is an Honorary Professor of Life Sciences at the University of KwaZulu-Natal.
Gods Of The Inferno The Inheritors 2
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Author : Fletcher Anthony
language : en
Publisher: Momentum
Release Date : 2013-10-01
Gods Of The Inferno The Inheritors 2 written by Fletcher Anthony and has been published by Momentum this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-01 with Fiction categories.
In the tradition of Jean Auel's Clan of the Cave Bear, Fletcher Anthony brings us a magical world inhabited by the spirits. The world of ancient Indonesia, and modern-day Gondwanaland: Australia. Thousands of years ago, the People lived and worshipped their gods in the rainforests of the Indonesian archipelago. Then the Newcomers began to come from the north and the People were forced to move south and relocate again and again. They must trust those of their kind with whom they used to do battle; they must learn how to cross a river; they must forget their old ways and forge new ideas. Fern is their shaman, and above all her spirit must be forged anew or she and her people will die — not from hunger or starvation or war, but from the loss of their gods and the dying of their spirit, the very heart of their world. And in contemporary Australia, another Fern must choose between the new world and the old, and the visions of an ancient shaman may guide her path in the present.
The Inner Bird
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Author : Gary W. Kaiser
language : en
Publisher: UBC Press
Release Date : 2010-10-01
The Inner Bird written by Gary W. Kaiser and has been published by UBC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-01 with Science categories.
Birds are among the most successful vertebrates on Earth. An important part of our natural environment and deeply embedded in our culture, birds are studied by more professional ornithologists and enjoyed by more amateur enthusiasts than ever before. However, both amateurs and professionals typically focus on birds' behaviour and appearance and only superficially understand the characteristics that make birds so unique. The Inner Bird introduces readers to the avian skeleton, then moves beyond anatomy to discuss the relationships between birds and dinosaurs and other early ancestors. Gary Kaiser examines the challenges scientists face in understanding avian evolution - even recent advances in biomolecular genetics have failed to provide a clear evolutionary story. Using examples from recently discovered fossils of birds and near-birds, Kaiser describes an avian history based on the gradual abandonment of dinosaur-like characteristics, and the related acquisition of avian characteristics such as sophisticated flight techniques and the production of large eggs. Such developments have enabled modern birds to invade the oceans and to exploit habitats that excluded dinosaurs for millions of years. While ornithology is a complex discipline that draws on many fields, it is nevertheless burdened with obsolete assumptions and archaic terminology. The Inner Bird offers modern interpretations for some of those ideas and links them to more current research. It should help anyone interested in birds to bridge the gap between long-dead fossils and the challenges faced by living species.
Penguins
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Author : Tui De Roy
language : en
Publisher: Princeton University Press
Release Date : 2022-04-19
Penguins written by Tui De Roy and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-04-19 with Nature categories.
An acclaimed photographic guide to these marvelous and enigmatic birds—now in a new, updated edition Penguins are perhaps the most beloved birds. On land, their behavior appears so humorous and expressive that we can be excused for attributing to them moods and foibles similar to our own. Few realize how complex and mysterious their private lives truly are, as most of their existence takes place far from our prying eyes, hidden beneath the ocean waves. Now in a new, updated edition, this stunningly illustrated book provides a unique look at these extraordinary creatures and the cutting-edge science that is helping us to better understand them. Featuring more than 400 breathtaking photos, this is the ultimate guide to all 18 species of penguins, including those with retiring personalities or nocturnal habits that tend to be overlooked and rarely photographed. This revised second edition features updated scientific information and some spectacular new photographs. Penguins is the most ambitious book to date by Tui De Roy, Mark Jones, and Julie Cornthwaite. Their travels, spanning more than two decades, have seen them crisscross the southern hemisphere to virtually everywhere that penguins are found, from the sun-baked lava shores of the Galápagos to some of the remotest subantarctic islands, as well as all around the Antarctic continent, where Emperor penguins breed on the deep-frozen sea. A book that no bird enthusiast or armchair naturalist should do without, Penguins includes discussions of penguin conservation, informative species profiles, fascinating penguin facts, and tips on where to see penguins in the wild. Covers all 18 species of the world’s penguinsFeatures more than 400 stunning photosExplores the latest science on penguins and their conservationIncludes informative species profiles and fascinating penguin facts
Plumes From Paradise
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Author : Pamela Swadling
language : en
Publisher: Sydney University Press
Release Date : 2019-12
Plumes From Paradise written by Pamela Swadling and has been published by Sydney University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12 with History categories.
The natural resources of New Guinea and nearby islands have attracted outsiders for at least 5000 years: spices, aromatic woods and barks, resins, plumes, sea slugs, shells and pearls all brought traders from distant markets. Among the most sought-after was the bird of paradise. Their magnificent plumes bedecked the hats of fashion-conscious women in Europe and America, provided regalia for the Kings of Nepal, and decorated the headdresses of Janissaries of the Ottoman Empire. Plumes from Paradise tells the story of this interaction, and of the economic, political, social and cultural consequence for the island's inhabitants. It traces 400 years of economic and political history, culminating in the 'plume boom' of the early part of the 20th century, when an unprecedented number of outsiders flocked to the island's coasts and hinterlands. The story teems with the variety of people involved: New Guineans, Indonesians, Chinese, Europeans, hunters, traders, natural historians and their collectors, officials, missionaries, planters, miners, adventurers of every kind. In the wings were the conservationists, whose efforts brought the slaughter of the plume boom to an end and ushered in an era of comparative isolation for the island that lasted until World War II.