Effluent tipping scales on fish gender

Read the full story in the Denver Post. Thanks to Phil Kaplan for the pointer.

Wastewater pouring from sewage-treatment plants in Boulder and Denver is bending the gender of fish living downstream, a new study has found.

Some of these strangely sexed sucker fish have male and female organs, and others have sexual deformities, according to a study by University of Colorado researchers.

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