Scientifically known as the Bothrops atrox, the Fer De Lance is one of the most venomous snake in the American Continent. It has a potent cytotoxic and hemotoxic venom which destroy body tissues in the bitten area and red blood cells, causing necrosis. The bite of the Bothrops atrox can be fatal and, in severe cases, it is necessary the amputation of the affected member to save the patient's life. Found in South and Central America, the Fer De Lance is a pit viper that can measure up to 1.6 m long. It is dark grey, with two creamy waving stripes along its back, and has an arrow-shaped head. It feeds on rodents.