Electric Eel

The electric eel (Electrophorus electricus) is a native species of fish to South America. It habits the waters of the Amazon and Orinoco rivers. It grows up to 2.5 meters and 20 kg. It has 2 organs than can produce an electric discharge. The first one produces 180 V of electricity, while the second produces up to 860 V. The discharge is short, and while the voltage is huge, the amperage is low, thus it cannot kill a human. The shock will be very painful though.