• U.S. Geological Survey scientists found this adult mountain yellow-legged frog last year in a rediscovered population of the endangered frog in the San Jacinto Wilderness, San Bernardino National Forest, California.

    Endangered Frogs Refrigerated

    Chilling Induces Hibernation and Urge to Breed

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More About the Environment

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    Freshwater Crisis

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  • Photo: Lightning over Cumberland, Ga.

    Photo Gallery: Lightning

    Look to the skies for a dazzling show of lightning from dramatic flashes over Patagonia to glowing scenes in Tanzania and learn where the most lightning occurs, and more.

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    NG Expedition to Cocos Island

    National Geographic scientists travel to Costa Rica, to map and survey unexplored seamounts and their marine life for the first time.

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