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A school of yellowfin surgeonfish feed near dusk off Canton Island in the Phoenix Islands.
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Yellowfin Surgeonfish

 A school of yellowfin surgeonfish, Acanthurus xanthopterus, feed near dusk off...
A shortfin mako glides through the waters off the coast of California.
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Shortfin Mako Shark

 The shortfin mako shark (Isurus oxyrinchus) is found offshore in tropical and warm...
Three bar jacks and a female tiger shark swim through the ocean off the coast of the Bahamas.
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Tiger Shark

 Three bar jacks and a female tiger shark, nearly 4-meters long, swim off the coast...
A blue shark, with a copepod attached to its dorsal fin, coasts through waters near New England.
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Blue Shark

Named for the radiant blue color on its back and sides, the blue shark (Prionace...
The arrows show the direction of ocean currents recorded by William Dampier while crossing “La Grande Mer du Sud”—the Pacific Ocean.
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Pacific Ocean Currents

 The arrows show the direction of ocean currents recorded by William Dampier while...
A geneticist samples shark DNA
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Dr. Mahmood Shivji

 Dr. Mahmood Shivji of the Guy Harvey Research Institute and Save Our Seas Shark...