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Leafy Sea Dragon

Photo: Leafy sea dragon

Fish have been evolving in Earth's oceans for 500 million years. Some, like this leafy sea dragon, have used their time well, adapting some of the most ornate and effective camouflage of any creature on the planet. These striking sea horse relatives are found only in the drifting seaweed and undersea forests of Australia.

Buy the book Planet Ocean for more photos.

Photograph by Laurent Ballesta

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Take a photographic journey through Montana and enter for a chance to win a trip for two!

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Adventure Videos

Check out adventure videos from our West Coast Adventure Editor Steve Casimiro and go "Behind the Lens."

Photo Tip of the Week

Long Exposures

When making long exposures, use a remote release to avoid camera movement. If you don't have a remote release, use the camera's self-timer.

More Photo Tips

The Complete National Geographic

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Explore 120 years of amazing discoveries, fascinating maps, and the world's best photography.

Photography Guides

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Guides by National Geographic photographers.

The National Geographic Image Collection Book

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Own images from one of the finest and most extensive image collections on Earth.