Frog deformities linked to farm pollution

11:31 25 September 2007
NewScientist.com news service
Catherine Brahic

Fertiliser run-off could be causing an increase in frog deformities in North American lakes, according to a new study.

Frogs with extra or malformed legs have been a focus of attention in North America since 1995, when schoolchildren in Minnesota studying wetlands found a high number of frogs with missing or extra legs.