Iowa Public Television


A Fish Called Wanda -- Or Should it be Wendell?

posted on September 8, 2006

Abnormal "intersex" fish, with both male and female characteristics have been found in the Potomac river and its tributaries. The abnormalities in the fish have raised questions about how contaminants may be affecting millions of people who drink tap water there.

Although scientists have not identified the source, or sources, of the problem, the results appear to suggest that the Potomac River and its tributaries have a problem with so-called "endocrine disrupters," which can tamper with natural chemical signals.

In the past 10 years, pollutants mimicking hormones have raised alarms around the world as alligators, frogs, polar bears and other animals have developed abnormalities.


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