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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 Deepwater Horizon oil spill is recognized as the worst oil spill in U.S....
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...