Sharks (eBook)
256 Seiten
Firefly Books (Verlag)
978-1-77085-726-1 (ISBN)
physiology. A powerful swimming stroke is delivered from sharks' muscles directly to their tough skin shell forcing their body to "inflate" like a car tire with each flex, then quickly become fluid to glide as the muscles relax. By diving through the various water layers, a shark may locate and follow chemical scent trails that could lead to food concentrations. Thus a shark moving from one temperature layer to the next can expose its sensory equipment to new chemical cues and potentially new food sources. Some deep-sea sharks also lure prey with their light-producing organs. Salvador Jorgensen has combined the latest discoveries of new species, newly-documented shark behavior, and the best photographs, to give a "state-of-knowledge" picture of sharks. Unique pictures of shark births, recently discovered creatures from the Ocean Census research, and details of sharks' skin, eyes, teeth and heads (including a comparison of nine different
hammerhead varieties) make this a book every shark enthusiast will want. It will also debunk many myths about shark behavior, and give libraries a true, 21st-century documentation of a very popular wild animal. Sharks features illustrated profiles of species living in the shallow reefs and also those living in the open ocean along with a unique "cladogram" family tree that opens into a gatefold and profiles every known species.
Salvador Jorgensen is a Research Scientist at the Monterey Bay Aquarium where he studies the ecology, migration and population dynamics of great white sharks. He completed a Ph.D. in Ecology at U.C. Davis and a postdoctoral fellowship at Stanford University. He was a Fulbright scholar in Mexico in 2004 and has published over 20 peer review articles. He lives with his wife and their son in Monterey, California.
Table of Contents Introduction 1 The Diversity of Sharks Diverse Forms: The Shark Family Tree Diverse Habits 2 Life Histories Life History Strategies Reproductive Strategies Mating Strategies 3 Form and Function Skin Coloration Bioluminescence Teeth Cartilage Dorsal Fin Endothermy Enlarged Liver Sensory Arsenal Body Plan 4 Strategies and Behaviors Homing Instincts Yoyo Diving Lean, Mean and Clean Social Distractions Foraging Strategies Shark Predators 5 Threats and Hopes Shark Products on the
Market Hunting Newborns Fear and Fascination Can Sharks Survive? References Index Photo Credits
Erscheint lt. Verlag | 25.7.2013 |
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Zusatzinfo | 150 color photographs and illustrations, charts, shark family tree, bibliography, index |
Sprache | englisch |
Maße | 250 x 250 mm |
Themenwelt | Sachbuch/Ratgeber ► Natur / Technik ► Naturführer |
Naturwissenschaften ► Biologie ► Zoologie | |
ISBN-10 | 1-77085-726-5 / 1770857265 |
ISBN-13 | 978-1-77085-726-1 / 9781770857261 |
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