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In the X-ray image of this Viper Moray Eel (Enchelynassa canina), note the second set of jaws in the “throat”; these are the gill arches, which are present in all fish.
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X-Ray Image of a Viper Moray Eel

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A photo of a swimming Protanguilla palau, the newly discovered genus and species of eel
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Palauan primitive cave eel (Protanguilla palau), a 'living fossil'

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a map of where coelacanths live
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Coelacanth Distribution

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two steelhead trout
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Steelhead Trout

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Two nurse sharks hover over a baited cage
Lesson Plan

Focus on Farmer Fish

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Two nurse sharks hover over a baited cage
Lesson Plan

Fish Feeding

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Two nurse sharks hover over a baited cage
Lesson Plan

How to Catch a Fish

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an illustration of pufferfish species and their relatives
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Pufferfishes and Their Relatives

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a graphic depicting the various species of tuna
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The Big Tunas

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Imagine eating an entire fish bigger than you—bones and all! At only 25 cm long, the black swallower often eats fish much larger than itself with the help of an expanding stomach. Sometimes the meal is so large that there isn’t enough time for digestio
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Black Swallower

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A pearly razorfish
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Pearly Razorfish

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Goliath grouper during the annual spawning event in Jupiter, FL.
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Goliath Grouper

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