The John Shedd Aquarium has opened a new exhibit devoted to the Invasive Species and their negative effects on the Great Lakes.

[url=http://www.chicagotribune.com/news/local/chi--060105shedd,0,4619548.story?coll=chi-news-hed:9ae62]http://www.chicagotribune.com/news/local/chi--060105shedd,0,4619548.story?coll=chi-news-hed[/url:9ae62]

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