Whether they’re finned or scaled, deep-sea swimmers or treetop dwellers, each one of the thousands of animals at the National Aquarium has a unique story to tell.

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Electric Eel (Electrophorus electricus)

Electric eels can produce up to 600 volts.

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Emerald Tree Boa (Corallus caninus)

They can reach over 6 feet in length.

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Emperor Angelfish (Pomacanthus imperator)

A juvenile looks emperor angelfish so different from an adult that it was once believed to be a different type of angelfish.

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Giant South American River Turtle (Podocnemis expansa)

The giant South American river turtle is one of the largest freshwater turtles in the world.

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Giant Waxy Tree Frog (Phyllomedusa bicolor)

These frogs prevent themselves from drying out by wiping wax over their bodies.

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Green Moray Eel (Gymnothorax funebris)

The yellow tint of the mucus that covers its body gives the fish its namesake green color.

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Green Sea Turtle (Chelonia mydas)

The green sea turtle gets its name not from the color of its shell but from the greenish shade of its fat.

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Harlequin Tuskfish (Choerodon fasciatus)

The stunning harlequin tuskfish usually has eight pairs of alternating orange, blue, and white bands on its body and prominent sharp, blue t...

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Horn Shark (Heterodontus francisci)

The horn shark gets its name from the short venomous "horn" in front of each of its dorsal fins.

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