[ExSoldier]

I remember reading a story about someone catching a shark in the Mississippi River---at St. Louis!! One heck of a long way from the Gulf of Mexico, that.

Pretty common for some types of sharks (notably the Bull Shark) to move several hundred miles up river in brackish water. Bulls are considered maneaters, too.

[Wonder Warthog]

"Pretty common for some types of sharks (notably the Bull Shark) to move several hundred miles up river in brackish water."

Yes, but the Mississippi River ain't brackish--even at New Orleans. Muddy, yes ---- brackish, no. Evidently, this shark was "thinking outside the box".