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| | Great Lakes (North America) - Hutchinson encyclopedia article about Great Lakes (North America) |
 | | The chief ports of the Great Lakes are Fort William, Port Arthur, Hamilton, Toronto, and Kingston in Canada; and Duluth, Chicago, Milwaukee, Detroit, Cleveland, Erie, Toledo, and Buffalo in the USA. |
 | | The Illinois Waterway connects Lake Michigan at Chicago with the Mississippi River; and the New York State Barge Canal connects Lake Erie at Buffalo with the Hudson River and New York City. |
 | | Exotic species of wildlife introduced to the Great Lakes have caused serious problems: sea lampreys, introduced in the early 20th century, are parasites to native fish, and zebra mussels, were introduced in 1988, have clogged water pipes and destroyed indigenous species. |
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