Researchers
on Thursday unveiled a genetic blueprint of the electric eel — a
fearsome denizen of South America that can zap you with an electric
field of up to 600 volts — as well as detailed genetic data on two other
types of electric fish. Even though six groups of electric fish have
evolved independently in far-flung locales like the muddy waters of the
Amazon and murky marine environments, they all seem to have reached into
the same "genetic toolbox"...

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