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Red Crab

Photo: red crab on a kelp plant, close view
A bright red kelp crab nestles into kelp leaves near Bodega Bay, California. Kelp forests grow mainly in cold waters and provide shelter for hundreds of marine organisms.
Photograph by William R. Curtsinger

Earth Topics

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Photo: Reflection on Yellowstone Lake, Yellowstone National Park

Photo Contest

Share your shots and you could win a trip to the Grand Canyon!

Photo: Puerto Escondido

Interactive Map

Visit Mexico with this interactive map.

Six Degrees Book and DVD

Image: Six Degrees DVD and book

Get an eye-opening warning of the dangers of climate change, one degree at a time.

Support Conservation

Photo: Two penguins

Help conserve the world's natural resources.