Bull sharks in MY Mississippi River?

It’s more likely than you think! “Not only have there been accounts of bull sharks spotted in the Ohio River near Memphis, they’ve been documented swimming in the Mississippi River as far north as St. Louis. In fact, National Geographic has reported on the sharks swimming further up river still to Alton, IL. During the 1930s, two fishermen caught a five-foot bull shark where it was swimming near Alton.”