Steve Arend Posted May 4, 2006 Share Posted May 4, 2006 Invasive Snail Found in Minn. Harbor DULUTH, Minn. (AP) -- A small, spiral-shaped snail that clones itself and is native to New Zealand has been discovered in Duluth-Superior Harbor and the St. Louis River estuary, raising concerns about the impact of another invasive species.The snail, called the New Zealand mudsnail, is only about as large as a peppercorn when fully grown. But one snail and its offspring can generate hundreds of thousands of clones each year.Invasive Snail Found in Minn. Harbor Link to comment Share on other sites More sharing options...
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