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Photograph of the model of a Giant Megatooth Shark, taken from the front..

slideshow

Shark Ancestors

Long before great white sharks appeared, much larger ancestors roamed the ocean....

Thu, 12/17/2009 - 17:55

A rendering of an underwater marine scene from the Cambrian Period, featuring an arthropod, annelids, and other animals.

slideshow

A Collection of Cambrian Fossils

When you're standing in a museum surrounded by fossils, you can almost imagine...

Tue, 10/01/2013 - 10:03

This shrimp is colored to fit in - probably why they are common members of the seaweed community.

slideshow

A World Adrift: Life in the Sargassum Slideshow

Smithsonian Marine Science Network Postdoctoral Fellow, Seabird McKeon, returns...

Fri, 05/18/2012 - 16:43