"Prized by farmers through the ages for its ability to make soil rich and crumbly, the humble earthworm may get a brand new bag. Scientists searching for ways to clean up industrial waste sites are turning to earthworms--or more specifically, to their enzymes. It seems a Slovak scientist named Oto Sova has been able to remove contaminants like the carcinogen PCB by mixing the soil with earthworm enzymes, which break down the toxins and render them harmless. Yet to be approved stateside, the process could restore acres of contaminated land."-- World Ark Magazine, March/April 2008
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