Go ahead and laugh.
Officially, bull sharks have made it up the Mississippi as far as Illinois. In the town of Alton, Illinois, which is above St. Louis, two commercial fisherman caught a bull shark in the river. This shark had been raiding their fish traps, and they decided to catch the culprit once and for all. They set a big trap, one that would catch the biggest muskellunge or pike. They were certainly shocked to find that it was a shark raiding their traps