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Scientists aren't shocked to learn there's more than one species of electric eel

Electrophorus electricus -- the electric eel -- is not really an eel or a single species, according to Carlos David de Santana at the Smithsonian National Museum of Natural History, who identified three genetically distinct species of electric eel, which are actually knife fishes. The newly discovered species are named E. voltai and E. varii, and all three live in different habitats and have different physical features.

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