Sharks

The Animal Answer Guide

Szerző: Gene S. Helfman, George H Burgess

Nyelv:

Kötés: Kemény kötésű

Kiadó: Johns Hopkins University Press

Elérhetőség: 50 % esély

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Answering every conceivable question about sharks, authors Gene Helfman and George H. Burgess descri...

Információk a könyvről

Szerző

Gene S. Helfman, George H Burgess

Nyelv

Angol

Kötés

Könyv - Kemény kötésű

Kiadva

2014

oldal

288

EAN

9781421413082

ISBN

1421413086

Enbook ID

04791877

Kiadó

Johns Hopkins University Press

Súly

771

Méretek

178 x 254 x 23

Teljes leírás

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.

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Sharks

The Animal Answer Guide

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