With the release of the movie "Jaws" in our subconscious, probably forever entrenched pattern of bloodthirsty sharks and swimmers mutilated. However, in addition to sharks in the world there is a huge number of fish-killers that prowl the waters of the Earth's freshwater, especially in estuaries. Here is the 10 most dangerous fish in the world: Goliath tiger fish, catfish Piraiba, catfish or Guncha Baqarah, great barracuda, catfish, giant freshwater stingray, muskellunge, electric eel, alligator gar, a bull shark.