The Emergence of Whales

The Emergence of Whales PDF

Author: J.G.M. Thewissen

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 480

ISBN-13: 1489901590

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Research in whale origins is now in an explosive phase, with a cascade of discoveries adding to our understanding of the evolutionary pattern and a suite of new techniques being applied to address new questions. The objective of this volume is to provide a snapshot of this explosion. The volume paints the scene with a broad brush. Taken together the chapters clearly indicate that cetacean origins is a field that is dynamic, multidisciplinary, and that the end of the explosive phase is not in sight.

Cetacean Paleobiology

Cetacean Paleobiology PDF

Author: Felix G. Marx

Publisher: John Wiley & Sons

Published: 2016-03-29

Total Pages: 336

ISBN-13: 1118561368

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Cetaceans (whales, dolphins, and porpoises) have fascinated and bewildered humans throughout history. Their mammalian affinities have been long recognized, but exactly which group of terrestrial mammals they descend from has, until recently, remained in the dark. Recent decades have produced a flurry of new fossil cetaceans, extending their fossil history to over 50 million years ago. Along with new insights from genetics and developmental studies, these discoveries have helped to clarify the place of cetaceans among mammals, and enriched our understanding of their unique adaptations for feeding, locomotion and sensory systems. Their continuously improving fossil record and successive transformation into highly specialized marine mammals have made cetaceans a textbook case of evolution - as iconic in its own way as the origin of birds from dinosaurs. This book aims to summarize our current understanding of cetacean evolution for the serious student and interested amateur using photographs, drawings, charts and illustrations.

Return to the Sea

Return to the Sea PDF

Author: Annalisa Berta

Publisher:

Published: 2020-03-31

Total Pages: 221

ISBN-13: 0520355520

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The life and evolutionary times of marine mammals, from giant whales and sea cows that originated 55 million years ago whose ancestors walked on land, to deep diving elephant seals and clam-eating walruses of modern times.

Cetacean Paleobiology

Cetacean Paleobiology PDF

Author: Felix G. Marx

Publisher: John Wiley & Sons

Published: 2016-03-29

Total Pages: 336

ISBN-13: 1118561554

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Cetaceans (whales, dolphins, and porpoises) have fascinated and bewildered humans throughout history. Their mammalian affinities have been long recognized, but exactly which group of terrestrial mammals they descend from has, until recently, remained in the dark. Recent decades have produced a flurry of new fossil cetaceans, extending their fossil history to over 50 million years ago. Along with new insights from genetics and developmental studies, these discoveries have helped to clarify the place of cetaceans among mammals, and enriched our understanding of their unique adaptations for feeding, locomotion and sensory systems. Their continuously improving fossil record and successive transformation into highly specialized marine mammals have made cetaceans a textbook case of evolution - as iconic in its own way as the origin of birds from dinosaurs. This book aims to summarize our current understanding of cetacean evolution for the serious student and interested amateur using photographs, drawings, charts and illustrations.

The Whales, Dolphins and Porpoises of the Eastern North Pacific

The Whales, Dolphins and Porpoises of the Eastern North Pacific PDF

Author: Stephen Leatherwood

Publisher:

Published: 1972

Total Pages: 230

ISBN-13:

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The field guide is designed to assist the layman in identifying the whales, dolphins, and porpoises he sees in the eastern North Pacific, including all the area north of the equator and east of 180 degrees W longitude. The animals described are grouped not by scientific relationships but by simularities in appearance in the field. Photographs of the animals in their natural environment are the main aids to identification. (Author).