Malformed frogs rarer than thought

By Ashley Yeager, 10:18 AM November 20, 2013

Frogs with skin cysts or shortened or missing legs make up only 2 percent of the amphibians collected during a 10-year study. The results suggest that malformed frogs and toads are much rarer than scientists first reported in the mid-1990s.

Scientists gathered more than 62,000 frogs and toads at 152 U.S. refuges from 2000 to 2009. Among the sites, there were hotspots in California, Alaska and the Mississippi River Valley and other places where malformations were more common. But frogs and toad...

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