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The Model Megalodon

Take a trip to the National Museum of Natural History in Washington, D.C. and you...

Article

What the Big Picture Can Teach Us About Tiny Ocean Creatures

A 1,000-pound metal instrument—about the size of a two-seat Smart car—drops off...

overview

The Megalodon

Carcharocles megalodon was once the most fearsome predator to reign the seas. This...

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Oyster Shell

Oysters filter about 50 gallons of water a day. ...

Article

How to Survive an Oil Spill: Oyster Edition

Oysters are powerhouses of water filtration. In a single day, one oyster can filter...

slideshow

Sharks from the Vault

The sharks housed in the Smithsonian National Museum of Natural History's...

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Leopard Catsharks

These gorgeous sharks are leopard catsharks (Poroderma pantherinum) found in the...

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A Toothy Grin

The southern African frilled shark (Chlamydoselachus africana) is a very rare shark...

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Cookie Cutter

This cookie-cutter shark (Isistius brasilienses) has a unique bite mark that they...

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A Blind Shark Baby

The blind shark (Brachaelurus waddi) is lecithotrophic viviparous— the eggs are...

Article

What the Megalodon Left Behind

The largest shark ever to exist on this planet, Carcharocles megalodon, could grow...

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A Bull Shark's Toothy Grin

Understanding shark movements and population sizes require scientists to catch...