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Illustration of a four-legged proto-whale with webbed feet.
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Early Whale with Webbed Feet

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Illustration of the Paleozoic shallow water habitat.
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A Mississippian Marine Habitat (359 - 318 Million Years Ago)

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Lenticulina secans-- this “benthic” foram lives on the seafloor. This specimen was collected from southeastern Tanzania.
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Lenticulina secans

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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.
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Carbonate Reef (Cretaceous Period: 145 - 65 Million Years Ago)

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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
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Multispecies Communities of Seacows

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Offshore Peru, during the Eocene (~56-34 million years ago), showing two archaeocetes (ancient whales): Ocucajea picklingi and Supayacetus muizon.
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Eocene Whales and Penguins Off the Coast of Peru

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A shark tooth embedded in a bone
Article

What the Megalodon Left Behind

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A Hawaiian petrel in flight
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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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Smithsonian researchers eat a meal in preparation for a fossil excavation
Article

At STRI, No Whales Yet, But There Are Fossil Sea Cows...

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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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