10. The Wels Catfish:
This large species of catfish is also called sheatfish and is mostly found in the Eastern, Central, and the Southern Europe. It has a flat and broad face with a wide mouth. Their lifespan is 50 years or so. The wels catfish has a very high sense of hearing but poor eyesight.
The fish is very aggressive when attacking. Its sharp teeth can tear you down into pieces in a short while. Apart from attacking humans, the wels catfish also feed on frogs, other fishes, and seabirds.