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Reptiles --- Evolution.
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In this definitive work, Ernest Glen Wever establishes the evolutionary importance of the reptile ear as the origin of the higher type of auditory apparatus shared by man and the mammals. Tracing the development of the auditory receptor in the living reptiles, he examines the use of a variety of mechanisms and principles of action by that receptor. While some of the material in this book has appeared previously in journal articles, most of it is presented here for the first time.Basing this study on his twenty years of research at Princeton's Auditory Research Laboratories, Professor Wever treats in anatomical and functional detail the auditory mechanism in about 250 species and subspecies of reptiles. The anatomical treatment rests on dissections and histological examinations of the ears in serial section, and portrays the relevant features in drawings that represent particular views of reconstructions. The author evaluates the performance of thesse ears electrophysiologically, in terms of the electrical potentials of the cochlea, paying particular attention to problems of the transmission of vibrations inward to the cochlea and the actions there in stimulating the sensory cells.Professor Wever finds that the cochlea emerged independently from the non-auditory labyrinth in three different vertebrate groups: fishes, amphibians, and reptiles. It was among the reptiles, however, that the vertebrate ear took on a more advanced configuration from which it further evolved along separate lineages in the birds and mammals.Ernest Glen Wever is Eugene Higgins Professor of Psychology Emeritus at Princeton University.Originally published in 1978.The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Ear. --- Reptiles --- Anatomy. --- Physiology.
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598.1 --- 598.1 Reptilia. Reptiles. Herpetology --- Reptilia. Reptiles. Herpetology
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Reptiles --- Herpetofauna --- Herpetozoa --- Herps --- Herptiles --- Reptilia --- Sauria --- Amniotes --- Vertebrates --- Herpetology
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Today, any kid can rattle off the names of dozens of dinosaurs. But it took centuries of scientific effort-and a lot of luck-to discover and establish the diversity of dinosaur species we now know. How did we learn that Triceratops had three horns? Why don't many paleontologists consider Brontosaurus a valid species? What convinced scientists that modern birds are relatives of ancient Velociraptor?In The Story of the Dinosaurs in 25 Discoveries, Donald R. Prothero tells the fascinating stories behind the most important fossil finds and the intrepid researchers who unearthed them. In twenty-five vivid vignettes, he weaves together the dramatic tales of dinosaur discoveries with what modern science now knows about the species to which they belong. Prothero takes us from eighteenth-century sightings of colossal bones taken for biblical giants through recent discoveries of enormous predators even larger than Tyrannosaurus. He recounts the escapades of the larger-than-life personalities who made modern paleontology, including scientific rivalries like the nineteenth-century "Bone Wars." Prothero also details how to draw the boundaries between species and explores debates such as whether dinosaurs had feathers, explaining the findings that settled them or keep them going. Throughout, he offers a clear and rigorous look at what paleontologists consider sound interpretation of evidence. An essential read for any dinosaur lover, this book teaches us to see an ancient world ruled by giant majestic creatures anew.
Paleontology --- Paleontologists. --- Dinosaurs. --- Dinosauria --- Reptiles, Fossil --- Palaeontologists --- Geologists --- History.
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Reptielen zijn superhelden. Zelfs in de extreemste gebieden kunnen deze oersterke dieren overleven. Hoe? Daar hebben ze heel slimme trucs voor ontwikkeld! Van infrarode straling voelen tot over het water lopen, of van kleur veranderen tot ogen die los van elkaar kunnen bewegen. Maar reptielen zijn niet alleen interessant vanwege hun coole gadgets. Ze zijn heel belangrijk voor de natuur. En er worden zelfs medicijnen gemaakt van het gif van sommige soorten. Hoog tijd dus om deze dieren van dichtbij te leren kennen!
Didactics of biology --- Reptiles --- Zoology --- informatieve jeugdliteratuur --- lager onderwijs (doelgroep)
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