The king cobra is a highly venomous elapid snake, native of Asia (India, Pakistan, and Indonesia). Its scientific name is Ophiophagus hannah, which can measure up to 4.50 m in length. When threatened, the king cobra swells out its hood at the sides of its neck. The hood has two round spots on each side, which resembles eyes; the rest of the body is brown and creamy white. The king cobra has neurotoxic venom which affects the nervous system, causing paralysis, heart collapse, and renal failure.