The Kingfisher And The Swallow Or How The Kingfisher Changed His Name
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The Kingfisher And The Swallow Or How The Kingfisher Changed His Name
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Author : Kingfisher
language : en
Publisher:
Release Date : 1876
The Kingfisher And The Swallow Or How The Kingfisher Changed His Name written by Kingfisher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1876 with categories.
British Museum Catalogue Of Printed Books
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Author :
language : en
Publisher:
Release Date : 1890
British Museum Catalogue Of Printed Books written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1890 with categories.
The Saturday Review Of Politics Literature Science And Art
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Author :
language : en
Publisher:
Release Date : 1876
The Saturday Review Of Politics Literature Science And Art written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1876 with Art categories.
Catalogue Of The Printed Books In The Library Of The British Museum
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Author : British Library
language : en
Publisher:
Release Date : 1946
Catalogue Of The Printed Books In The Library Of The British Museum written by British Library and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1946 with categories.
Adaptations In The Animal Kingdom
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Author : Verne A. Simon
language : en
Publisher: Xlibris Corporation
Release Date : 2010-03-11
Adaptations In The Animal Kingdom written by Verne A. Simon and has been published by Xlibris Corporation this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-11 with Science categories.
Chapter 1 Temperature Regulation in Animals There are, broadly speaking, two kinds of animals with regard to body temperature: exothermic (cold-blooded) and endothermic (warm-blooded) animals. The exothermic animals, such as reptiles, do not supply body heat by metabolic conversion of food to heat. Reptiles allow their surroundings to determine their body temperature. They lie out in the sun to warm their body. If they are too hot, they seek the shade or even burrow into the ground. At night they hide from the cold in burrows or squeeze into cracks between rocks or hide in leaf cover. Reptiles avoid the extremes of temperature. When reptiles become cool, their movements slow down, and chemical processes in their bodies, such as digestion, are inhibited. Predators, such as hawks and eagles, find it easier to prey on lizards and snakes in cooler weather. The distribution of reptiles is somewhat limited by their exothermic character. They do not thrive in cold climates1. What are the advantages and disadvantages in being exothermic? When the lizard is in a cool environment and cannot find a warmer spot, its body simply cools to the temperature of the surroundings. It is not necessary for the exothermic lizard to generate heat to increase its body temperature. This means that the lizard uses less energy and does not have to eat as much. As the lizard cools its digestion, breathing rate and heart rate slow, saving energy. A disadvantage occurs when the cool lizard is attacked by a predator. If warm, he could run fast and have a much better chance of 1 St. Patrick did not chase the snakes out of Ireland. Ireland was already completely free of snakes. St. Patrick was instrumental in converting pagans to Christianity. Since the snake was a symbol used in pagan rituals, St. Patrick was influential in ridding Ireland of the ritual use of symbolic snakes. 10 Verne A. Simon evading capture. A warm lizard being chased by a predator can move quite fast for a short distance, but like other exotherms, lacks endurance and soon tires. When the exotherm is running fast, its effort is anaerobic, that is, is not using oxygen, and lactic acid is building up in its body. It soon tires and is unable to exert itself. It must recover by taking in oxygen to rid the body of lactic acid. Another disadvantage of exothermic life is that cold climates are not available as habitat. If there is a sudden climate change, an exothermic animal wouldn't be able to mount the sustained effort needed to migrate to a better environment. The exothermic creature might simply perish. About 180 million years ago, mammals appeared. Mammals are endothermic (warm-blooded) and are able to maintain a nearly constant body temperature regardless of the temperature of their surroundings within wide limits. Their bodies will not tolerate too high or too low a temperature. If the surroundings are too hot or cold, causing the body temperature to exceed allowed limits, the animal will die. Mammals have furry coats to help them tolerate low temperatures. Sea-dwelling mammals-whales, seals, and walrus-have thick layers of blubber for insulation. Birds are endothermic and have feathers to protect them from the cold. Many types of birds and mammals survive in cold climates. Emperor penguins even live in the Antarctic, in the coldest climate on earth. Under normal circumstances, mammals and birds manage to keep this very nearly constant body temperature regardless of the temperature of their surroundings. Mammals are characterized by having body hair and suckling their young. This latter behavior gives the class its name; mammals must have mammary glands. A second advantage is that endothermic animals are not limited to activity only in daylight hours. In many locat
Bird Neighbors
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Author : Neltie Blanchan
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-09-25
Bird Neighbors written by Neltie Blanchan and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-25 with Fiction categories.
Reproduction of the original: Bird Neighbors by Neltie Blanchan
Systematics And Taxonomy Of Australian Birds
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Author : Les Christidis
language : en
Publisher: CSIRO PUBLISHING
Release Date : 2008
Systematics And Taxonomy Of Australian Birds written by Les Christidis and has been published by CSIRO PUBLISHING this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Birds categories.
Lists all those species of birds that have been recorded from the Australian mainland, Tasmania, island territories and surrounding waters. Based on theauthors' original book The Taxonomy and Species of Birds of Australia and its Territories, it includes any new species for which records have been accepted by the Records Appraisal Committee of Birds Australia. It also includes all extant and recently extinct (post-1800) native species, as well as new species, accepted vagrants and introduced species that have become established and continue to survive in the wild.
The Methodist New Connexion Magazine And Evangelical Repository
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Author :
language : en
Publisher:
Release Date : 1859
The Methodist New Connexion Magazine And Evangelical Repository written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1859 with categories.
Northwood S Naturalist
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Author : Dave Paulson
language : en
Publisher: Lulu.com
Release Date : 2007
Northwood S Naturalist written by Dave Paulson and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Education categories.
Naturalist, Dave Paulson share his experiencing hiking , canoeing, birding , camping and getting lost while snowshoeing in the northwoods.
Birds In The Ancient World
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Author : Jeremy Mynott
language : en
Publisher: Oxford University Press
Release Date : 2018-05-11
Birds In The Ancient World written by Jeremy Mynott and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-11 with History categories.
Birds pervaded the ancient world, impressing their physical presence on the daily experience and imaginations of ordinary people and figuring prominently in literature and art. They provided a fertile source of symbols and stories in myths and folklore and were central to the ancient rituals of augury and divination. Jeremy Mynott's Birds in the Ancient World illustrates the many different roles birds played in culture: as indicators of time, weather and the seasons; as a resource for hunting, eating, medicine and farming; as domestic pets and entertainments; and as omens and intermediaries between the gods and humankind. We learn how birds were perceived - through quotations from well over a hundred classical Greek and Roman authors, all of them translated freshly into English, through nearly 100 illustrations from ancient wall-paintings, pottery and mosaics, and through selections from early scientific writings, and many anecdotes and descriptions from works of history, geography and travel. Jeremy Mynott acts as a stimulating guide to this rich and fascinating material, using birds as a prism through which to explore both the similarities and the often surprising differences between ancient conceptions of the natural world and our own. His book is an original contribution to the flourishing interest in the cultural history of birds and to our understanding of the ancient cultures in which birds played such a prominent part.