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Carte Sharks Gene Helfman

Sharks

The Animal Answer Guide

Autor: Gene Helfman
Limbă: engleză
Legare: Carte broșată
Editura: Johns Hopkins University Press
Disponibilitate: În depozitul extern în cantități mici
Expediem în 11-15 zile
170.79 lei
Answering every conceivable question about sharks, authors Gene Helfman and George H. Burgess descri...

Informații despre carte

Autor
Gene Helfman
Limbă
engleză
Legare
Carte - Carte broșată
Publicat
2014
Pagini
288
EAN
9781421413099
ISBN
1421413094
Enbook ID
02636694
Editura
Johns Hopkins University Press
Greutate
608
Dimensiuni
176 x 253 x 17

Descriere completă

Answering every conceivable question about sharks, authors Gene Helfman and George H. Burgess describe the fascinating biology, behavior, diversity, and cultural importance of sharks (there are more than 1,000 species worldwide), their close relations 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 all of these 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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