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Peter Turnley/Corbis, (right) Aflo/Nature Picture Library; 79: (left)
Colin Seddon/Nature Picture Library, (right) Martin Harvey/Corbis;
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Choice/Getty Images; 82: (left) U.S. Navy photo by Photographers
Mate 2nd ClassWilliam H. Ramsey, (right)Walter BibikowThe
Image Bank/Getty Images; 83: Library of Congress,Washington, D.C.;
photograph, Rose & Hopkins (neg. no. LC-USZ62-102137); 84: Eric
& David Hosking/Corbis; 86: David BuffingtonPhotographers
Choice/Getty Images; 87: © Gabe Palmer/Corbis; 88: © Christine
Osborne/Corbis; 89: (top) Kim Taylor/Nature Picture Library,
(bottom) Macduff Everton/Corbis; 90: Courtesy Harper Collins
Childrens Books. Jacket photo by Jerry Yulsman. Cover art: Art
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zefa/Corbis; 126: Encyclop.dia Britannica, Inc.; 127: Encyclop.dia
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Francisco/Nature Picture Library; 133: © Philip Gould/Corbis;
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302 Credits BRITANNICA STUDENT ENCYCLOPEDIA
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Congress,Washington, D.C; 167: (left) Jurgen Freund/Nature Picture
Library, (right) Dave NagelTaxi/Getty Images; 169: (left) Richard
Hamilton Smith/Corbis, (right) SusanWalsh/AP; 170: The Granger
Collection, New York; 171: © Richard Hamilton Smith/Corbis;
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Cairns/Nature Picture Library; 174: © Spectrum Colour
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Congress,Washington, D.C. (neg. no. LC-USW33- 019081-C);
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fotostock/SuperStock, (right) © Spectrum Colour Library/Heritage-
Images.
Volume 13
Page 4: (top and bottom, inset) Library of Congress,Washington D.C.;
5: StaffanWidstrand/Nature Picture Library; 6: Steve Maslowski/Photo
Researchers, Inc.; 7: © Spectrum Colour Library/Heritage-Images;
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(right) Hulton-Deutsch Collection/Corbis; 13: Steve