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National Museum of Natural History

South American rivers are home to at least three different species of electric eels. One species, Electrophorus varii, named after the late Smithsonian ichthyologist Richard Vari, swims through murky, slow-flowing lowland waters. (D. Bastos)

Fish Detective Solves a Shocking Case of Mistaken Identity

Smithsonian scientist David de Santana discovered two new species of electric eels in the Amazon rainforest.

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