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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 3-D reconstruction of the skull of a fin whale fetus.
Article

Keeping An Ear Out For Whale Evolution

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An artistic rendering of an ocean landscape as it may have looked during the Archean Eon.
Slideshow

The Ocean Throughout Geologic Time, An Image Gallery

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Fossil mosasaur skull and partial skeleton sitting in what looks like the dirt it was excavated from.
Article

If You Build An Ocean, Sea Monsters Will Come

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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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Nick Pyenson points to a skull and skeleton of a fossil whale.
Article

Excavating a "toothed" baleen whale from Vancouver Island

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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 3D representation of a paleontological dig site with fossils colorized
Photo

An Ichthyosaur Gravesite

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

Giant Megatooth Model

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A close up of a sediment core.
Photo

Sediment Core Close-Up

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Squalicorax shark fossil from the Smithsonian
Photo

Squalicorax Shark Fossil

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Globotruncana falsostuarti -- a foram that lived about 75 million years ago, during the Cretaceous Period.
Photo

Globotruncana falsostuarti

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