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EXPLORER Vol. 7 No. 6


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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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Ruffl ed Feathers: Some birds may act like they’re angry. They’re not. They’re just trying to survive.


Water in Space: Join an astrobiologist searching for water in space to answer the question: Are we alone?


Nature’s Mysteries: Stones mysteriously move. Sand dunes sing. Come along as scientists try to solve these and


other mysteries in nature.


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Cover: a jaguar 03/14/QGL/1


ISBN: 9781285958682


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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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