



A new exhibition at the Smithsonian National Museum of Natural History reveals the complex structures within fish
By Ann Chin | February 1, 2012
A viper moray eel has a second set of jaws in its throat, and preys on coral reefs.
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When the long-spine porcupine fish pumps water into its stomach, it becomes round with bristles to ward off predators.
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The 2.5-centimeter-long body of the Dhiho's sea horse curls its tail to hold onto algae or coral. This species is only found in the waters around Japan.
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This fish is called lookdown because of its sloped head appears to gaze downward. These fish swim in small schools.
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The torrent loach uses suction cups to hold its position. This recently discovered species has yet to receive a scientific name.
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The wedge-tail triggerfish protects itself with two sharp dorsal spines: a large, thick one and a shorter spine behind it. The second spine serves as a trigger, locking the first one in place....[More]
The wedge-tail triggerfish protects itself with two sharp dorsal spines: a large, thick one and a shorter spine behind it. The second spine serves as a trigger, locking the first one in place.
This x-ray image of the crisscross prickleback, which was preserved in 1910, shows the prickles on the fish's back in great detail.
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