If you think Asian carp might wreak havoc on the Great Lakes, meet the northern snakehead fish.
Along with Asian carp, the torpedo-shaped fish is considered one of 10 invasive species at high risk of invading the Great Lakes from the Mississippi River Basin. The fish raises fear because it can survive icy winters, ravenously preys on other fish, breathes air and can live out of water for several days if it remains moist.
Uh oh. These fish can crawl over land and live out of water. Does that mean that closing the locks on the Chicago Waterway won't stop them?
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