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If You Build An Ocean, Sea Monsters Will Come

Building a productive ocean is complicated. The process is long (on the order of...

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The First Filter Feeder

Today, filter feeders like clams, sponges, krill, baleen whales, fishes, and many...

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Exploring Chile's Marine Fossil Record in the Atacama Desert

Smithsonian curator of fossil marine mammals Nick Pyenson and a team of...

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A Mississippian Marine Habitat (359 - 318 Million Years Ago)

Crinoids (echinoderms related to sea stars and sea urchins) dominate the Paleozoic...

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Preparing a Fossil Whale Specimen

Paleobiologist Mark D. Uhen drills away rock to reveal the fossilized bones of...

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Bones and Teeth of South America's Oldest Fossil Whales

These are fossil remains of archaeocetes, ancient whales, from the Paracas...

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Searching for Fossil Whales in Peru

George Mason University professor Mark D. Uhen and Dr. Matthew Lewin of the...

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Smithsonian Scientists Describe a New Fossil Whale

Monodontids, the group of whales that includes living belugas and narwhals, are...

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Jorge Velez-Juarbe

Jorge Velez-Juarbe is Predoctoral Fellow in the Department of...

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Ancient Entoproct Community

For a long time, scientists thought that some small tentacled fossils were early...

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Fossil Jellyfish

How long have jellyfish lived in the ocean? This jellyfish fossil is from the...

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Panama Expedition Success

Paeleobiologist Dr. Nicholas Pyenson, Curator of Fossil Marine Mammals for the...