LIFE IN A SHELL

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Life In A Shell

Author : Donald C. Jackson
ISBN : 9780674058903
Genre : Nature
File Size : 85.38 MB
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Trundling along in essentially the same form for some 220 million years, turtles have seen dinosaurs come and go, mammals emerge, and humankind expand its dominion. Is it any wonder the persistent reptile bested the hare? In this engaging book physiologist Donald Jackson shares a lifetime of observation of this curious creature, allowing us a look under the shell of an animal at once so familiar and so strange. Here we discover how the turtle’s proverbial slowness helps it survive a long, cold winter under ice. How the shell not only serves as a protective home but also influences such essential functions as buoyancy control, breathing, and surviving remarkably long periods without oxygen, and how many other physiological features help define this unique animal. Jackson offers insight into what exactly it’s like to live inside a shell—to carry the heavy carapace on land and in water, to breathe without an expandable ribcage, to have sex with all that body armor intervening. Along the way we also learn something about the process of scientific discovery—how the answer to one question leads to new questions, how a chance observation can change the direction of study, and above all how new research always builds on the previous work of others. A clear and informative exposition of physiological concepts using the turtle as a model organism, the book is as interesting for what it tells us about scientific investigation as it is for its deep and detailed understanding of how the enduring turtle “works.”
Category: Nature

Eph English Primary 2

Author :
ISBN : 9813124652
Genre : English language
File Size : 32.61 MB
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Category: English language

The Beachcomber S Guide To Seashore Life In The Pacific Northwest

Author : J. Duane Sept
ISBN : 9781550172041
Genre : Nature
File Size : 75.60 MB
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The Pacific Northwest coast is home to one of the most diverse displays of intertidal marine life in the world, including sponges, clams, snails, crabs, sea stars, sea anemones, jellies, fishes, seaweeds and more. The New Beachcomber’s Guide to the Pacific Northwest is a portable and easy-to-use reference for searching out and identifying the hundreds of species of seashore life found on the beaches of British Columbia, Washington, Oregon, Northern California and Southeast Alaska. Covering the Pacific Northwest’s most common shoreline-dwelling flora and fauna, the guide gives in each entry a detailed description of appearance and habitat accompanied by colour photos for easy identification of any creature you might encounter as you explore your local beach. Simple but essential information on tides and the various habitats within the intertidal zones is also provided to assist beachcombers in exploring safely with minimal ecological impact. The New Beachcomber’s Guide even contains up-to-date descriptions of the best beachcombing sites and when to visit them—you may even find your new favourite exploration grounds! Thoroughly revised and packed with handy and accessible information, this guide belongs in the beach bag or backpack of any avid naturalist, amateur beachcomber or adventurous family.
Category: Nature

Life In The Chesapeake Bay

Author : Alice Jane Lippson
ISBN : 0801883377
Genre : Nature
File Size : 67.54 MB
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Life in the Chesapeake Bay is the most important book ever published on America's largest estuary. Now in its third edition, the book has been updated with a new gallery of thirty-nine color photographs and dozens of new species descriptions and illustrations.
Category: Nature

A Sea Without Fish

Author : Richard Arnold Davis
ISBN : 9780253013491
Genre : Science
File Size : 62.29 MB
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The region around Cincinnati, Ohio, is known throughout the world for the abundant and beautiful fossils found in limestones and shales that were deposited as sediments on the sea floor during the Ordovician Period, about 450 million years ago—some 250 million years before the dinosaurs lived. In Ordovician time, the shallow sea that covered much of what is now the North American continent teemed with marine life. The Cincinnati area has yielded some of the world's most abundant and best-preserved fossils of invertebrate animals such as trilobites, bryozoans, brachiopods, molluscs, echinoderms, and graptolites. So famous are the Ordovician fossils and rocks of the Cincinnati region that geologists use the term "Cincinnatian" for strata of the same age all over North America. This book synthesizes more than 150 years of research on this fossil treasure-trove, describing and illustrating the fossils, the life habits of the animals represented, their communities, and living relatives, as well as the nature of the rock strata in which they are found and the environmental conditions of the ancient sea.
Category: Science

Learning About Reptiles Grades 4 8

Author : Debbie Routh
ISBN : 9781580371926
Genre : Juvenile Nonfiction
File Size : 27.9 MB
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Bring the outside inside the classroom using Learning about Reptiles for grades 4 and up! This 48-page book covers classification, appearance, adaptations, and endangered species. It includes questions, observation activities, crossword puzzles, research projects, study sheets, unit tests, a bibliography, and an answer key.
Category: Juvenile Nonfiction

The Boys In The Boat

Author : Daniel James Brown
ISBN : 9781101622742
Genre : Sports & Recreation
File Size : 71.89 MB
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The #1 New York Times–bestselling story about American Olympic triumph in Nazi Germany and now the inspiration for the PBS documentary “The Boys of ‘36” For readers of Unbroken, out of the depths of the Depression comes an irresistible story about beating the odds and finding hope in the most desperate of times—the improbable, intimate account of how nine working-class boys from the American West showed the world at the 1936 Olympics in Berlin what true grit really meant. It was an unlikely quest from the start. With a team composed of the sons of loggers, shipyard workers, and farmers, the University of Washington’s eight-oar crew team was never expected to defeat the elite teams of the East Coast and Great Britain, yet they did, going on to shock the world by defeating the German team rowing for Adolf Hitler. The emotional heart of the tale lies with Joe Rantz, a teenager without family or prospects, who rows not only to regain his shattered self-regard but also to find a real place for himself in the world. Drawing on the boys’ own journals and vivid memories of a once-in-a-lifetime shared dream, Brown has created an unforgettable portrait of an era, a celebration of a remarkable achievement, and a chronicle of one extraordinary young man’s personal quest. From the Trade Paperback edition.
Category: Sports & Recreation