Agriculture Linked To Frog Sexual Abnormalities

A farm irrigation canal would seem a healthier place for toads than a ditch by a supermarket parking lot. But scientists have found the opposite is true. In a study with wide implications for a longstanding debate over whether agricultural chemicals pose a threat to amphibians, zoologists have found that toads in suburban areas are less likely to suffer from reproductive system abnormalities than toads near farms -- where some individual animals had both testes and ovaries.

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