Explorer
EXPLORER VOL. 15 NO. 5
DEVELOPMENT TEAM
Vice President and Publisher: Francis Downey Executive Editor: Richard Easby Creative Director: Karen Thompson Explorer Editor: Brenna Maloney Young Explorer Editor: Corinne Rucker Permissions Editor: Jean Cantu Production Specialist: Dreama Karnes-Bynane
Manufacturing & Quality Management: Rachel Faulise
Director of Production: Nicole Elliott
PUBLISHED BY NATIONAL GEOGRAPHIC SOCIETY
There are more exciting articles coming in April!
Fly with a hummingbird on one of the longest bird migrations in the world.
Follow a scientists as he explores the world’s second largest coral atoll.
Join an astronomer as he travels the universe in search of stars.
PICTURE CREDITS COVER: © PETE OXFORD/NPL/MINDEN PICTURES; PAGES 2-3 MARK BRIDGER/GETTY IMAGES; PAGE 4 CHRISTIAN ZIEGLER/NATIONAL GEOGRAPHIC CREATIVE; PAGE 5 (TOP) J & C SOHNS/GETTY IMAGES; PAGE 5 (BOTTOM) CHRISTIAN ZIEGLER/NATIONAL GEOGRAPHIC CREATIVE; PAGE 6 CHRISTIAN ZIEGLER/NATIONAL GEOGRAPHIC CREATIVE; PAGE 7 SHIZUKA AOKI/NATIONAL GEOGRAPHIC CREATIVE; PAGE 8 (TOP) © INGO ARNDT/NPL/MINDEN PICTURES; PAGE 8 (BOTTOM) © STEPHEN DALTON/MINDEN PICTURES; PAGE 9 (TOP) HUGH LANSDOWN/FLPA/MINDEN PICTURES; PAGE 9 (BOTTOM) CHRISTIAN ZIEGLER/NATIONAL GEOGRAPHIC CREATIVE; PAGE 10 (LEFT) OLGER/ SHUTTERSTOCK; PAGES 10-11 THEODORE GRAY/
PERIODICTABLE.COM; PAGE 11 (TOP) THEODORE GRAY/
PERIODICTABLE.COM; PAGE 11 (BOTTOM LEFT) AUDREY BURMAKIN/SHUTTERSTOCK; PAGE 11 (BOTTOM RIGHT) ANSONSAW/ISTOCK; PAGES 12-14 (BACKGROUND) CONCEPT W/SHUTTERSTOCK; PAGE 12 THEODORE GRAY/
PERIODICTABLE.COM; PAGES 12-13 MIKE WALKER; PAGE 13 (TOP) © VISUALS UNLIMITED/ CORBIS; PAGES 13 (CENTER), 13 (BOTTOM), 14 THEODORE GRAY/
PERIODICTABLE.COM; PAGE 15 SCIENCE SOURCE; PAGES 16-17 (TOP) © KONRAD WOTHE/LOOK/PHOTOSHOT; PAGES 16-17 (CENTER) © FRANCK GUIZIOU/HEMIS/CORBIS; PAGES 16-17 (BOTTOM) © HEMIS/ALAMY STOCK PHOTO; PAGES 18-19 © FUNKYSTOCK/AGE FOTOSTOCK; PAGE 19 PAVALENA/SHUTTERSTOCK; PAGE 20 LADISLAV PAVLIHA/GETTY IMAGES; PAGE 21 (LEFT) ARTWORK BY LAWSON PARKER/NATIONAL GEOGRAPHIC CREATIVE; PAGE 21 (RIGHT) ALL PHOTOS © GEORGE STEINMETZ; PAGE 22 © GEORGE STEINMETZ; PAGE 23 (TOP) © GERRY ELLIS/MINDEN PICTURES; PAGE 23 (BOTTOM) KONRAD WOTHE/LOOK/ PHOTOSHOT; PAGE 24 © GLENN BARTLEY/ALL CANADA PHOTOS/ALAMY STOCK PHOTO.
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 Society, 1125 17th Street NW, Washington, D.C. 20036. Postmaster: Please send address changes to NATIONAL GEOGRAPHIC EXPLORER, PO Box 37863 Boone, IA 50037-28633. Periodical postage paid at Washington, D.C., and additional mailing offi ces.
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ISBN: 9781337083751 Canada: 9780176758752
Find your online Teacher’s Guide, interactive whiteboard lessons, and digital editions at
ngexplorer.cengage.com
Find your online Teacher’s Guide, interactive whiteboard lessons, and projectable editions at
ngexplorer.cengage.com.
(Note: The Teacher’s Guide and activity masters can be printed on either black and white or color printers.)
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