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A Hawaiian petrel in flight
Article

4,000 Years of Marine History through the Eyes of a Seabird

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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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A skeleton of an ichthyosaur
Photo

An Ichthyosaur's Bones

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A close up of a sediment core.
Photo

Sediment Core Close-Up

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An illustration of the megalodon shark.
Photo

Ancient Giant Megatooth Shark

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Squalicorax shark fossil from the Smithsonian
Photo

Squalicorax Shark Fossil

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A rendering of an underwater marine scene depicting life ~145-65 million years ago, when rudist clams were the major reef builders.
Article

Long Before Coral, Mollusks Built the Ocean's Reefs

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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 shark tooth embedded in a bone
Article

What the Megalodon Left Behind

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The first known filter feeder is a large shrimp-like creature called Tamisiocaris borealis. The feather-like structures on its head were used to rake plankton from the sea.
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The First Filter Feeder

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An illustration of multispecies communities of dugongs from India, Mexico and Florida
Article

The Discovery of Multispecies Communities of Seacows

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A researcher holds an arm bone from a "toothed" mysticete whale from Vancouver Island.
Article

Dispatches from the Field: Treacherous stream crossings and a new fossil find

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