The Secret Life of Sharks

The Secret Life of Sharks PDF Author: A. Peter Klimley
Publisher: Simon and Schuster
ISBN: 143910431X
Category : Nature
Languages : en
Pages : 476

Book Description
Marine biologist Pete Klimley swims with the sharks. He was one of the first scientists to free-dive among sharks, and he has spent nearly thirty years studying shark behavior, sometimes swimming in schools of several hundred sharks. From his firsthand observations he has learned that sharks are not the vicious man-eaters that we imagine, but fascinating animals with complex behaviors. Most people who think of sharks at all think immediately of great white sharks. But there are more than four hundred species of shark. Dr. Klimley has studied several species, most notably the great white and the hammerhead. (He describes the great white as the athlete among sharks, and the hammerhead as the Ph.D. of the shark world.) In The Secret Life of Sharks Dr. Klimley reveals the significant discoveries he made about hammerhead navigation and great white eating habits. By studying hammerheads gathered around underwater seamounts, Dr. Klimley learned that hammerheads rely on sophisticated tracking of ocean-floor magnetism to navigate. His long-term study of great white sharks off the California coast demonstrated that these huge sharks prefer to eat seals and sea lions because of the energy contained in their fatty bodies. They are selective eaters, not the man-eaters we expect, and they sometimes go weeks between meals. But Dr. Klimley did observe a ritualized behavior that great whites practice in order to avoid deadly disputes over prey that one shark has captured and another wants. Although we have learned a great deal about shark behavior, says Dr. Klimley, there is much that we do not know. Unfortunately we are destroying these magnificent creatures of the deep through overfishing and degradation of the oceans. Already some populations of sharks have declined steeply. Vividly written by one of the foremost authorities on sharks, The Secret Life of Sharks is a fascinating account of some of the world's most magnificent animals.

The Secret Life of Sharks

The Secret Life of Sharks PDF Author: A. Peter Klimley
Publisher: Simon & Schuster
ISBN: 9781416578338
Category : Nature
Languages : en
Pages : 0

Book Description
Marine biologist Pete Klimley swims with the sharks. He was one of the first scientists to free-dive among sharks, and he has spent nearly thirty years studying shark behavior, sometimes swimming in schools of several hundred sharks. From his firsthand observations he has learned that sharks are not the vicious man-eaters that we imagine, but fascinating animals with complex behaviors. Most people who think of sharks at all think immediately of great white sharks. But there are more than four hundred species of shark. Dr. Klimley has studied several species, most notably the great white and the hammerhead. (He describes the great white as the athlete among sharks, and the hammerhead as the Ph.D. of the shark world.) In The Secret Life of Sharks Dr. Klimley reveals the significant discoveries he made about hammerhead navigation and great white eating habits. By studying hammerheads gathered around underwater seamounts, Dr. Klimley learned that hammerheads rely on sophisticated tracking of ocean-floor magnetism to navigate. His long-term study of great white sharks off the California coast demonstrated that these huge sharks prefer to eat seals and sea lions because of the energy contained in their fatty bodies. They are selective eaters, not the man-eaters we expect, and they sometimes go weeks between meals. But Dr. Klimley did observe a ritualized behavior that great whites practice in order to avoid deadly disputes over prey that one shark has captured and another wants. Although we have learned a great deal about shark behavior, says Dr. Klimley, there is much that we do not know. Unfortunately we are destroying these magnificent creatures of the deep through overfishing and degradation of the oceans. Already some populations of sharks have declined steeply. Vividly written by one of the foremost authorities on sharks, The Secret Life of Sharks is a fascinating account of some of the world's most magnificent animals.

Sharks

Sharks PDF Author: Gene Helfman
Publisher: JHU Press
ISBN: 1421413094
Category : Nature
Languages : en
Pages : 286

Book Description
Do sharks lay eggs or give birth to live young? Do sharks sleep? How long do they live? How likely are shark attacks? This book answers your questions about some of nature’s most misunderstood animals. Answering every conceivable question about sharks, authors Gene Helfman and George H. Burgess describe the fascinating biology, behavior, diversity (there are more than 1,000 species worldwide), and cultural importance of sharks, their close relationship to skates and rays, and their critical role in healthy ecosystems. Helfman and Burgess take readers on a round-the-world tour of shark habitats, which include oceans as well as lakes and even rivers (as far up the Mississippi as St. Louis). They describe huge, ferocious predators like (Great) White and Tiger sharks and species such as Basking and Whale sharks that feed on microscopic prey yet can grow to lengths of more than 40 feet. The mysterious and powerful Greenland shark, the authors explain, reaches a weight of 2,200 pounds on a diet of seal flesh. Small (less than 2-foot long) Cookiecutter sharks attack other sharks and even take a chunk out of the occasional swimmer. Despite our natural fascination with sharks, we have become their worst enemy. Many shark species are in serious decline and a number are threatened with extinction as a result of overfishing and persecution. Sharks: The Animal Answer Guide presents a perfect mix of current science, history, anthropology, intriguing facts, and gripping photographs. Whether your fascination with sharks stems from fear or curiosity, your knowledge of these animals will improve immensely when you consult this book.

Shark

Shark PDF Author: Dean Crawford
Publisher: Reaktion Books
ISBN: 9781861893253
Category : History
Languages : en
Pages : 188

Book Description
In Shark, Dean Crawford explores the long relationship between shark and man, revealing that behind the fearsome caricature is a complex animal that deserves a thoughtful reconsideration.

The Secret Life of Fish

The Secret Life of Fish PDF Author: Doug Mackay-Hope
Publisher: White Lion Publishing
ISBN: 0711260990
Category : Nature
Languages : en
Pages : 226

Book Description
An exploration into the untold lives of 50 of the most compelling fish living in our oceans and waterways.

Beneath the Blue Planet

Beneath the Blue Planet PDF Author: Alex Brylske
Publisher: Mango Media Inc.
ISBN: 1684812178
Category : Nature
Languages : en
Pages : 374

Book Description
Dive Into the Fascinating World of Marine Biology! Beneath the Blue Planet is the perfect educational guide for divers, snorkelers, children, and parents. Learn about the ocean, its ecosystems and its conservation from the founders of Reef Smart Guides! Your blue planet adventure starts now! Beneath the Blue Planet is the ultimate guide to the ocean, its creatures, and its conservation. This comprehensive and pioneering book answers many of the burning questions that divers and snorkelers have after exploring the underwater world. If you want to know how the ocean works, understand the perils that coral reefs face and learn about some of the world’s most fascinating marine creatures, then this book will guide you. Beneath the Blue Planet traces the story of our ocean from Earth’s formation to the modern day, detailing the science behind everything from currents and chemistry to the fascinating ecology of its creatures, ranging from plankton to whales. Beyond explaining why the ocean and its inhabitants are so remarkable, Beneath the Blue Planet explores the serious challenges this precious environment faces, and offers insights into how we can work to preserve it for future generations and continue ocean exploration. Inside, you’ll discover: • The story of the ocean from its formation to the modern day • Coral reefs and the remarkable creatures that inhabit this ecosystem • The fascinating natural history of modern-day sharks and their ancient relatives • The challenges faced by the ocean and what we can do to preserve it for future generations If you liked Oceanology, 100 Dives of a Lifetime, and are a fan of the Reef Smart Guides, Dive and Snorkel travel series, you’ll love Beneath the Blue Planet.

Megalodon

Megalodon PDF Author: Rick Emmer
Publisher: Infobase Publishing
ISBN: 1438132107
Category : Carcharocles megalodon
Languages : en
Pages : 104

Book Description
Investigate the past existence of Megalodon, the prehistoric cousin of the great white shark, and the possibility that it still exists today.

Northeast Pacific Shark Biology, Research and Conservation Part B

Northeast Pacific Shark Biology, Research and Conservation Part B PDF Author:
Publisher: Academic Press
ISBN: 0128123958
Category : Science
Languages : en
Pages : 196

Book Description
Northeast Pacific Shark Biology, Research and Conservation, Part B, Volume 78, the latest release in the Advances in Marine Biology series contains updated chapters that focus on a variety of topics, including, but not limited to, an Introduction to Northeast Pacific shark biology, ecology, and conservation, Shark Interactions with Directed and Incidental Fisheries in the Northeast Pacific Ocean: historic and current encounters and challenges for shark conservation, An Introduction to modeling abundance and demographic parameters in shark populations, and Sharks in Captivity: The Role of Husbandry, Breeding, Education and Citizen Science in Shark Conservation. Specialty areas in this longstanding series include marine science, both applied and basic, a wide range of topical areas from all areas of marine ecology, oceanography, fisheries management and molecular biology, and the full range of geographic areas from polar seas, to tropical coral reefs are included making this an ideal reference and resource for postgraduates and researchers in a variety of fields. Reviews articles on the latest advances in marine biology Authored by leading figures in their respective fields of study Presents materials that are widely used by managers, students, and academic professionals in the marine sciences Provides value to anyone studying bottlenose dolphins, deep-sea macrofauna, marine invertebrates, pinna nobilis and ecology, amongst other study areas

Demon Fish

Demon Fish PDF Author: Juliet Eilperin
Publisher: Anchor
ISBN: 0307379795
Category : Nature
Languages : en
Pages : 329

Book Description
A group of traders huddles around a pile of dried shark fins on a gleaming white floor in Hong Kong. A Papua New Guinean elder shoves off in his hand-carved canoe, ready to summon a shark with ancient magic. A scientist finds a rare shark in Indonesia and forges a deal with villagers so it and other species can survive. In this eye-opening adventure that spans the globe, Juliet Eilperin investigates the fascinating ways different individuals and cultures relate to the ocean’s top predator. Along the way, she reminds us why, after millions of years, sharks remain among nature’s most awe-inspiring creatures. From Belize to South Africa, from Shanghai to Bimini, we see that sharks are still the object of an obsession that may eventually lead to their extinction. This is why movie stars and professional athletes go shark hunting in Miami and why shark’s fin soup remains a coveted status symbol in China. Yet we also see glimpses of how people and sharks can exist alongside one another: surfers tolerating their presence off Cape Town and ecotourists swimming with sharks that locals in the Yucatán no longer have to hunt. With a reporter’s instinct for a good story and a scientist’s curiosity, Eilperin offers us an up-close understanding of these extraordinary, mysterious creatures in the most entertaining and illuminating shark encounter you’re likely to find outside a steel cage.
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