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Vol. 13 No. 3 DEVELOPMENT TEAM


Vice President and Publisher: Francis Downey


Art Director and Designer: Karen Thompson Editors: Brenna Maloney Macon Morehouse Digital Editor: Shelby Alinsky Programmer: Meng Wei Media Editor: Shannon Hibberd Permissions Editor: Jean Cantu Production Specialist: Dreama Karnes-Bynane Manufacturing Manager: Nicole Elliott


PUBLISHED BY NATIONAL GEOGRAPHIC LEARNING Coming in January


Penguin Power! Travel the world to visit some of the places penguins live.


What a Plant Knows: Follow a plant scientist to discover how plants sense the world.


Destination Mars: See what it will take to send people to Mars.


PICTURE CREDITS COVER: JOEL SARTORE/NATIONAL GEOGRAPHIC CREATIVE; COVER LOGO (MANDRILL) JOEL SARTORE/NATIONAL GEOGRAPHIC CREATIVE; COVER LOGO (VOLCANO) © RICHARD ROSCOE/STOCKTREK IMAGES/CORBIS; COVER LOGO (BACTERIA ) JAMES CAVALLINI/ SCIENCE SOURCE; PAGES 2-3 JOEL SARTORE/NATIONAL GEOGRAPHIC CREATIVE; PAGES 4-9 (BACKGROUND) JOEL SARTORE/NATIONAL GEOGRAPHIC CREATIVE; PAGE 4 (TOP) IMAGEMAN/SHUTTERSTOCK.COM; PAGE 4 (BOTTOM) JOEL SARTORE/NATIONAL GEOGRAPHIC CREATIVE; PAGE 5 JIM WEBB/NATIONAL GEOGRAPHIC CREATIVE; PAGES 6-9 JOEL SARTORE/NATIONAL GEOGRAPHIC CREATIVE; PAGES 10-11 SEBASTIAN KAULITZKI/SHUTTERSTOCK.COM; PAGES 12-15 (BACKGROUND) INGRAM PUBLISHING/GETTY IMAGES; PAGE 12 SCIEPRO/GETTY IMAGES; PAGE 13 (TOP) TEK IMAGE/GETTY IMAGES; PAGE 13 (BOTTOM LEFT) SPL/SCIENCE SOURCE; PAGE 13 (BOTTOM RIGHT) JAMES CAVALLINI/SCIENCE SOURCE; PAGE 14 J. L. CARSON/GETTY IMAGES; PAGE 15 (TOP) SCIEPRO/GETTY IMAGES; PAGE 15 (BOTTOM) SEBASTIAN KAULITZKI/SHUTTERSTOCK.COM; PAGES 16-17 © DR. RICHARD ROSCOE/VISUALS UNLIMITED/CORBIS; PAGES 18-22 (BACKGROUND) © GERTH ROLAND/AGE FOTOSTOCK; PAGE 18 GARY HINCKS/SCIENCE SOURCE; PAGE 19 (TOP) © GALEN ROWELL/ MOUNTAIN LIGHT/ALAMY; PAGE 19 (BOTTOM) © BLDG IMAGES; PAGE 20 © RICHARD ROSCOE/STOCKTREK IMAGES/CORBIS; PAGE 21 (TOP) BRITISH ANTARCTIC SURVEY/WWW.PHOTO.ANTARCTICA.AC.UK; PAGE 21 (BOTTOM) © LOTHAR SLABON/EPA/CORBIS; PAGE 22 SUE MCDONALD/SHUTTERSTOCK.COM; PAGE 23 (TOP) © CHADDEN HUNTER/NATUREPL.COM; PAGE 23 (BOTTOM) © MARTIN RIETZE/AGE FOTOSTOCK; PAGE 24 PAUL NICKLEN/NATIONAL GEOGRAPHIC CREATIVE.


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NATIONAL GEOGRAPHIC EXPLORER (ISSN 1541-3357) 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 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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Copyright © 2013 National Geographic Learning. All Rights Reserved. Reproduction of the whole or any part of the contents of NATIONAL GEOGRAPHIC EXPLORER, without written permission is prohibited. National Geographic, NATIONAL GEOGRAPHIC EXPLORER, and the Yellow Border are trademarks of the National Geographic Society.


Cover: cheetah 09/13/QGL/1


ISBN: 9781285958347


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Find your online Teacher’s Guide, interactive whiteboard lessons, and projectable editions at ngpioneer.org. (Note: The Teacher’s Guide and activity masters can be printed on either black and white or color printers.)


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