The bad news is that mutant fish have been discovered in the Potomac and other local waters. The worse news is that contaminants in your drinking water may soon cause humans to have both male and female sex organs, too.

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Scientists say abnormal "intersex" fish, with both male and female characteristics, have been discovered in the Potomac River and its tributaries across the Capitol Region, raising questions about how contaminants are affecting millions of people who drink tap water there.

"I don't know, and I don't think anybody knows, the answer to that question right now: Is the effect in the fish transferable to humans?" said Thomas Jacobus, general manager of the Washington Aqueduct, which filters river water for residents to drink in the District of Columbia, Arlington, Va., and Falls Church, Va.

Potomac 'intersex' fish worry scientists [AP]