the bull shark, tends to swim outside the box—and right into the freshwater of the Mississippi River. Could bull sharks really swim that far from the ocean, and could they survive in freshwater?

Several viewers of a TV station in Cedar Rapids spotted a fin in the water a wondered if a shark had swum to Iowa up the Mississippi River. A television station in Cedar Rapids has received ...

""Sharks in the Mississippi River?! Unbelievable Facts Revealed!"" 🦈 Dive into the fascinating world of bull sharks, the only species known to thrive in freshwater. Learn how these powerful ...

The theory? That bull sharks swim up the Mississippi River from the Gulf of Mexico and occasionally troll the waters. If the idea of sharks in the river fuels your "Jaws"-inspired fear ...