River Monsters 55 episodes Jeremy Wade journeys up the Congo River in search of the ferocious Goliath Tiger Fish, but he will need the help of a local witch doctor to catch one.

5. River Of Blood - In Argentina's Parana River, Jeremy Wade hunts for a vicious predator known as the "River Tiger", thought to be responsible for a bloody attack on a young swimmer. More info ...

Let’s look at some of the river’s monsters, the biggest fish in the Mississippi! You may be surprised to learn that eels live ...