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Under Arctic Ice
Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a...
Tue, 01/04/2011 - 14:48
A Swimming Snail
Sea butterflies (also called pteropods) are sea snails aptly named: they are...
A fringe of short tentacles surrounds the flattened bell of this tiny, transparent...
These "elevator" rudists, an ancient bivalve, used one long heavy valve to anchor...