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The Model Megalodon

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

Article

Form Equals Function for Ancient Sea Lizards and Modern Whales

In the ocean there once lived a creature built for predatory prowess. It had teeth...

overview

The Megalodon

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

Article

Meals of the Mighty Mosasaur

Between 100 and 65 million years ago, at the time when dinosaurs reigned on land,...

Article

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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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...