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The Model Megalodon

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

overview

The Megalodon

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

Article

Island Ecosystem Transformation via Lava

Residents of Hawaii’s Big Island are holding their breath, and it’s not just...

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Seeing Algae from Space

In November 2004, scientists confirmed an algae bloom off the West Coast of...

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Algae Bloom Brings a Red Tide

An algae called Karenia brevis can bloom into a sea of red when there are...

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...