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Taking an Ice Sample
Using a drill, a team removes a chunk from the thick Arctic ice. Small samples are...
Mon, 01/10/2011 - 11:55
About 100 million years ago, during the heyday of the dinosaurs, reefs were built...
Fri, 12/04/2009 - 14:25
Sea squirts, or ascidians, are a diverse class of marine invertebrates representing...