Credit: U.S. Fish and Wildlife Service . The Asian carp, a monstrous, invasive fish, has been knocking at the door of the Great Lakes for decades. Now bad news is spreading that the fish may have breached an electric barrier on the Chicago Sanitary and Ship Canal, entering Lake Michigan…. Read the full story on TreeHugger

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Asian Carp Fever Grips Great Lakes, Monster Invasive Fish May Already Be Here