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A shark tooth embedded in a bone
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A Tooth Left Behind

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A fossil of the ancient shark Falcatus falcatus
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The Ancient Shark Falcatus falcatus

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A close-up image of a fossil shark jaw with teeth.
Article

Shark Teeth Tell Great White Shark Evolution Story

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Ocean Overtime Timeline.
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Ocean Over Time

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An Illustration of small tentacled fossils.
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Ancient Entoproct Community

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Overview

Sea Level Rise

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Smithsonian scientists race the tide the excavate an ancient whale fossil entombed in rock
Article

Fossil Whale Found, Excavated, Jacketed, and Returned to STRI!

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Two men each hold a ceramic vessel at the archaeological excavation
Article

Archaeologists Study Early Whaling Community in Quebec, Canada

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A skeleton of an ichthyosaur
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An Ichthyosaur's Bones

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serrations from sharks on a fossilized whalebone
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Bite Marks From the Past

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A fossil imprint of Haplophrentis carinatus with two oar-like appendages.
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Haplophrentis carinatus

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Colorful illustration of extinct Archaeocyatha that lived on the seafloor.
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Archaeocyatha

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