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A Squalodontid Success
On a beach in Piña, Panama the tide is rolling out. Faint outlines of skeletal...
Wed, 06/22/2011 - 17:47
Long before great white sharks appeared, much larger ancestors roamed the ocean....
Thu, 12/17/2009 - 17:55
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
Two Tusked Narwhal
The narwhal tusk is actually one of two teeth. In males, the tusk protrudes from...