

Build your vocabulary! We add new words for each issue.

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Windsurfer: © Ralph A. Clevenger/Corbis
Fish: Tim Laman/National Geographic Image Collection
Fire: Mark Thiessen/National Geographic Photographer
Chameleon tail: Joel Sartore/National Geographic Image Collection
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Wind at Work From flying kites to sailing boats, people have used wind in many ways for thousands of years.

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Reef Rainbow Dive into a coral reef and you'll see color all around. Red, yellow, and blue fish dart through the sunlit water. Yet there is more to the reef than meets the eye. Jump into this rainbow of color on page 2 of our September 2008 issue.
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Firestorm! Wildfires can destroy everything in their path. They race through forests and neighborhoods. Each year, about 100,000 wildfires blaze in the United States. Brave the flames with firefighters on page 8 of our September 2008 issue.
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Terrific Tails From winning mates to swinging through trees, tails seem to have endless uses. They keep cats and kangaroos upright. They help other animals stay safe. Find out what else tails can do on page 14 of our September 2008 issue.
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