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Spring 2005

New Zealand mud snails: A tiny gastropod is a major problem here—not there

They have already invaded the Snake River, Yellowstone National Park, and lots of other sites. They can reach population densities greater than 300,000 per square meter, carpeting stream beds and changing the way nutrients cycle through the ecosystem. It was a little difficult, though, to explain all of this to the gentleman who wanted to confiscate my snails. » More ...