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The golden toad, last seen in Costa Rica's cloud forest in 1989, is believed to be extinct. The ecology of the cloud forest depends on the frequent formation of clouds and mist.

Earth and Space Science provides activities, animations, and lessons on the structure, processes, and history of...

Alaska 1964: Surface rupture develops on road.

Virtual Courseware demonstrates fundamental concepts related to earthquakes and global warming. Learn how...

Learn about the origins and the power of Big Waves along the Northern California Coast.

Earth System, Structure, and Processes provides video clips and interactive resources for learning about biogeochemical cycles...

 

National Science Foundation

National Science Foundation

Multiple Agencies
 
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