On the Wing

On the Wing PDF Author: Dr. David E. Alexander
Publisher: Oxford University Press, USA
ISBN: 0199996776
Category : Science
Languages : en
Pages : 225

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Book Description
"On the Wing is the first book to take a comprehensive look at the evolution of flight in all four groups of powered flyers: insects, pterosaurs, birds, and bats."--Book jacket.

On the Wing

On the Wing PDF Author: Dr. David E. Alexander
Publisher: Oxford University Press, USA
ISBN: 0199996776
Category : Science
Languages : en
Pages : 225

Get Book Here

Book Description
"On the Wing is the first book to take a comprehensive look at the evolution of flight in all four groups of powered flyers: insects, pterosaurs, birds, and bats."--Book jacket.

The Evolution of Flying and Flightless Birds

The Evolution of Flying and Flightless Birds PDF Author: Sir Gavin De Beer
Publisher:
ISBN: 9780199141715
Category : Science
Languages : en
Pages : 20

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Book Description


The Biology of Penguins

The Biology of Penguins PDF Author: Bernard Stonehouse
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 576

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Book Description


Flying Tips for Flightless Birds

Flying Tips for Flightless Birds PDF Author: Kelly McCaughrain
Publisher:
ISBN: 9781406375657
Category : Acrobats
Languages : en
Pages : 0

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Book Description
"Witty and clever. This novel really does sparkle." Roddy DoyleFrom debut author Kelly McCaughrain comes a sweet and kooky romcom for fans of R. J. Palacio's Wonder, Sarah Crossan, and Susin Nielsen's We Are All Made of Molecules. Twins Finch and Birdie Franconi are stars of the flying trapeze. But when Birdie suffers a terrifying accident, Finch must team up with the geeky new kid, Hector Hazzard, to form an all-boys double act and save the family circus school. Together they learn to walk the high-wire of teen life and juggle the demands of friends, family, first love and facing up to who they are - all served up with a dash of circus-showbiz magic.

The Evolution of Flying and Flightless Birds

The Evolution of Flying and Flightless Birds PDF Author: Sir Gavin Rylands De Beer
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 0

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Book Description


Dinosaurs of the Air

Dinosaurs of the Air PDF Author: Gregory S. Paul
Publisher: JHU Press
ISBN: 9780801867637
Category : Nature
Languages : en
Pages : 484

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Book Description
This book synthesises the growing body of evidence which suggests that modern-day birds have evolved from theropod dinosaurs of prehistoric times. The author argues that the ancestor-descendant relationship can also be reversed.

The Origin and Evolution of Birds

The Origin and Evolution of Birds PDF Author: Alan Feduccia
Publisher: Yale University Press
ISBN: 9780300078619
Category : Nature
Languages : en
Pages : 490

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Book Description
An exploration of all that is known about the origin of birds and of avian flight. It draws on fossil evidence and studies of the structure and biochemistry of living birds to present knowledge and data on avian evolution and to propose a new model of this evolutionary process.

The Evolution of Flying and Flightless Birds

The Evolution of Flying and Flightless Birds PDF Author: Sir Gavin De Beer
Publisher:
ISBN: 9780199141715
Category : Birds
Languages : en
Pages : 16

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Book Description


Romancing the Birds and Dinosaurs

Romancing the Birds and Dinosaurs PDF Author: Alan Feduccia
Publisher: BrownWalker Press
ISBN: 1599426064
Category : Nature
Languages : en
Pages : 336

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Book Description
Birds and dinosaurs have dominated human interest for decades. In this well-supported revolutionary view of the field, critical questions are explored with credible evidence and biological thought. Are birds derived directly from advanced dinosaurs, or are they closely related dinosaur cousins? Did flight originate via the natural "gravity-assisted" trees-down model, or from the improbable “gravity-resisted” ground-up model? Were the earliest birds ground-predators or trunk-climbing gliders? Were dinosaurs hot-blooded with insulating protofeathers, or highly active, cold-blooded reptiles? These are among the questions addressed in this path-breaking book. Current consensus suggests that early birds were earth-bound and flight began on the ground. Reversing that logic, since birds are hot-blooded, by inference so too were dinosaurs, and extraordinarily complex feathers, flight brain and inner ear, evolved before flight in dinosaurs. The iconic early bird Archaeopteryx, despite innumerable flight and arboreal features, is now displayed as an earth-bound predator that could not fly. In reality, we have yet to provide satisfactory explanations for much of the biological origin and early evolution of birds. Among the questions addressed is whether truly feathered dinosaurs are in reality lost or "hidden birds?" The architectural complexity of feathers leads the author to the conclusion that if an animal has evolved extraordinarily complex, aerodynamically-designed feathers, an avian flight hand, flight membranes, and a flight brain, it's a bird. Birds and dinosaurs captivate and enchant the human imagination. These intriguing animals have dominated the field of paleontology and evolution for the past half century, engendering heated debate on avian ancestry, the origin of flight and feathers, and the biology of their fossils. Are birds living dinosaurs? In this series of entertainingly contentious and captivating essays evolutionary biologist Alan Feduccia writes with verve and humor to expose major problems in the field and advocate liberation from the shackles of consensus thinking about birds and dinosaurs. He maintains that the euphoria of paleontologists claiming to have solved the major problems of bird evolution is premature, largely generated by the adoption of a rigid, cult-like methodology, heavily blended with ideology, and excluding many biological and geological principles. He adroitly exposes and elucidates major mistakes in the field and their aftermath. Romancing the Birds and Dinosaurs is a lucid revelation of clarity and synthesis, a fascinating unveiling of the underlying science that has produced the good, but also often appalling fossil research and wild speculation in bird and dinosaur evolution. A must read for anyone interested in this rapidly evolving field, the short, concise and incisive essays provide the reader with access to this complex topic. REVIEWS and WORDS OF PRAISE In this strikingly unconventional and brilliant book, Professor Alan Feduccia presents the current status of the recent controversy about the origin of birds with clarity and vigor. A thought-provoking personal exploration of what the bird fossils represent. ---Sankar Chatterjee, Paul Whitfield Horn Distinguished Professor of Geosciences and Curator of Paleontology, Texas Tech University. Feduccia's book eloquently reminds us that consensus science is to be shied away from especially when it is used to plead special cases against basic scientific principles. The concept of “lost birds” is particularly intriguing as it defines what birds are and how special science obfuscates the simplicity of evolution. ---David A. Burnham, Associate Researcher, University of Kansas Biodiversity Institute and Natural History Museum. Based on a thorough understanding of the empirical evidence, Feduccia presents a convincing account of avian origins from their putative ancestors. ---Walter J. Bock, Professor of Evolutionary Biology, Columbia University and Research Associate, American Museum of Natural History. With candor, clear thinking, humor, and abundant evidence, Alan Feduccia’s Romancing the Birds and Dinosaurs should be mandatory reading for the countless millions who are intrigued by dinosaurs and their relatives, the birds. Feduccia points out the many empirical and logical shortcomings in the stubborn majority view that birds evolved from dinosaurs, an idea now solidly entrenched as dogma in education and popular culture. This new book will be as interesting to those who study human behavior and scientific methods as it will to students of vertebrate evolution. ---David W. Steadman, Curator of Ornithology, Professor of Biology, Florida Museum of Natural History, University of Florida.

Rails

Rails PDF Author: Barry Taylor
Publisher: A&C Black
ISBN: 140813537X
Category : Nature
Languages : en
Pages : 601

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Book Description
This is a guide to rails, a relatively homogeneous family of birds spread throughout the world. Barry Taylor and Ber van Perlo have described and illustrated 145 species of rails, including two that are newly described, and also ten that are recently extinct and two that are almost certainly extinct. The book, based on up-to-date references and on new observations, is the first to give comprehensive information on field identification (including voice), covering all species and races for which details are known. It is also the first to provide descriptions of the immature and juvenile plumages of many species. The authors provide a detailed summary of current knowledge of all aspects of rail biology and their often complex behaviour, social structure, and family life. They explain how such apparently poorly flying birds can undertake intercontinental migrations and are such widespread and successful colonists of remote oceanic islands. They also discuss the remarkable ease and speed with which species on such islands have evolved into flightless forms in the absence of predators, a fact that has led to the rapid extinction of numerous island taxa following the arrival of man. Rail habitats are fast disappearing, say the authors, and many rails become endangered before enough is known about them to plan effective conservation measures. The book provides information on distribution, status, habitat requirements, and current threats, and it gives conservation priorities for threatened species.