You must have heard about them in your science class when in school and many of you had been wondering about their existence. Well, here you go they actually exist. And, not only exist but, true to their name, they exhibit powerful electric shock; Nature has gifted the respective creature with the ability for its survival. As per the resources, the electric eel produces up to 600 volts of electric current, which is enough to kill a man or any other living being. It is undoubtedly one of the deadliest fishes in the world. Also, Eel has the longest lifespan around 150 years.