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An illustration of the megalodon shark.
overview

The Megalodon

 Carcharocles megalodon was once the most fearsome predator to reign the seas. This...
An oil drilling platform in oil-free water two years after the Deepwater Horizon oil spill in the Gulf of Mexico.
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Gulf Oil Spill

The Gulf oil spill is recognized as the worst oil spill in U.S. history. Within...
Great White Sharks breach to hunt -- with split-second timing they grab their prey in one swift snatch. Follow the whole breaching action in this slideshow.
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Great White Shark

 Sharks are much older than dinosaurs. Their ancestry dates back more than 400...
A photo of a squid using bioluminescence to hide in the deep sea.
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Bioluminescence

 You may have seen the sparkle of fireflies on a summer’s night. The fireflies...
Great hammerhead in Bimini, Bahamas.
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Sharks

 There are more than 500 species of sharks swimming in the world’s ocean. Yet when...