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Recent Antarctic expeditions, underwater volcano monitoring, studies of...
Tue, 12/01/2009 - 10:02
These "elevator" rudists, an ancient bivalve, used one long heavy valve to anchor...
Underwater Parks in 3-D
As I readied myself and my camera for a dive in Yellowstone Lake, the largest body...
Swimming With Sharks
Lying in water only a foot deep, I watched the shark meander lazily through the...