This page contains a Flash digital edition of a book.
Coming in January


Fancy Feathers: Travel to an island to fi nd some of the weirdest birds on Earth.


The Elements of Life: Go on a hunt for the substances that make up everything in the world—and beyond.


Extreme Ice: Face danger on a glacier and discover how these giant rivers of ice shape our planet.


EXPLORER Vol. 6 No. 3 DEVELOPMENT TEAM


Vice President and Publisher: Francis Downey


Art Director and Designer: Karen Thompson Editors: Macon Morehouse, Brenna Maloney, Shira Evans Digital Editor: Shelby Alinsky Designer: James Wildman Programmer: Meng Wei Media Editor: Shannon Hibberd Permissions Editor: Jean Cantu Production Specialist: Dreama Karnes-Bynane


Research Manager: Christina An Manufacturing Manager: Nicole Elliott


PUBLISHED BY NATIONAL GEOGRAPHIC LEARNING


NATIONAL GEOGRAPHIC EXTREME EXPLORER (ISSN 1938-8004) is published seven times during the school year—September, October, November–December, January–February, March, April, May—by National Geographic Learning, 1125 17th Street NW, Washington, D.C. 20036. Postmaster: Please send address changes to NATIONAL GEOGRAPHIC EXTREME EXPLORER, PO Box 4002865, Des Moines, IA 50340–0597. Periodical postage paid at Washington, D.C., and additional mailing offi ces.


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PICTURE CREDITS


COVER: JONES/SHIMLOCK-SECRET SEA VISIONS/GETTY IMAGES; PAGES 2-3 © MITSUHIKO IMAMORI/MINDEN PICTURES; PAGES 4-6, 8-9 (BACKGROUND) HIXNHIX/SHUTTERSTOCK.COM; PAGE 4 © BIRGITTE WILMS/MINDEN PICTURES; PAGE 5 (TOP) KIRBY MORGAN/ SHUTTERSTOCK.COM; PAGE 5 (BOTTOM) PHOTOS BY MICHAEL CROWLEY/GETTY IMAGES; PAGE 6 SECRET SEA VISIONS/GETTY IMAGES; PAGE 7 (BACKGROUND) HOLBOX/SHUTTERSTOCK.COM; PAGE 7 (TOP) © JOHN K. B. FORD/URSUS/SEAPICS.COM; PAGE 7 (CENTER) DAVID WONG/GETTY IMAGES; PAGE 7 (BOTTOM) © ROSS AND DIANE ARMSTRONG/HEDGEHOG HOUSE/MINDEN PICTURES; PAGE 8 © NEIL OVERY/AGE FOTOSTOCK; PAGE 9 (BOTH) © SOLVIN ZANKL/VISUALS UNLIMITED/CORBIS; PAGES 10-11 O. LOUIS MAZZATENTA/NATIONAL GEOGRAPHIC STOCK; PAGES 12, 14-15 (BACKGROUND) SOPHY R./SHUTTERSTOCK.COM; PAGE 12 © FRANK LUKASSECK/CORBIS; PAGE 13 O. LOUIS MAZZATENTA/NATIONAL GEOGRAPHIC STOCK; PAGE 13 (MAP) NATIONAL GEOGRAPHIC MAPS; PAGES 14-15 O. LOUIS MAZZATENTA/NATIONAL GEOGRAPHIC STOCK; PAGES 16-17 © ERIC BACCEGA/AGE FOTOSTOCK; PAGES 18-23 (BAMBOO BORDER) IAN O’HANLON/SHUTTERSTOCK.COM; PAGE 18 © MITSUAKI IWAGO/MINDEN PICTURES; PAGE 19 © KATHERINE FENG/MINDEN PICTURES; PAGE 20 © KATHERINE FENG/MINDEN PICTURES; PAGE 21 © LI CHUAN/EPA/CORBIS; PAGE 23 © KATHERINE FENG/MINDEN PICTURES; PAGE 24 PAULA GUY/SHUTTERSTOCK.COM.


Copyright © 2012 National Geographic Learning. All Rights Reserved. Reproduction of the whole or any part of the contents of NATIONAL GEOGRAPHIC EXTREME EXPLORER without written permission is prohibited. National Geographic, NATIONAL GEOGRAPHIC EXTREME EXPLORER, and the Yellow Border are trademarks of the National Geographic Society.


Cover: This sea star is an example of symmetry in nature.


10/12/QGL/1 ISBN: 9781285492346


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edition e-


edition e- Find your online Teacher’s Guide, interactive whiteboard lessons,


and digital editions at extremeexplorer.org. (Note: The Teacher’s Guide and activity masters can be printed on either black and white or color printers.)


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