Put the cobra in the mix.
Longest Venomous Snake
Two fluid ounces of a King cobra's venom is all it takes to kill an elephant or 20 people! Its pure poison power makes this deadly creature the longest venomous snake in the world. The King cobra (Ophiophagus hannah) originates from southeast Asia and India. It grows to an average length of 3.65-4.5 m (12-15 ft) – that's as long as a family saloon car. Eek! The King cobra has 1-cm (0.5-in) long fangs but digests victims, usually other snakes, by swallowing them whole. A specimen measuring 5.54 m (18 ft 2 in) long was captured alive near Fort Dickson in the state of Negri Sembilan, now Malaysia, in April 1937. It later grew to 5.71 m (18 ft 9 in) in London Zoo, UK. It was destroyed at the outbreak of war in 1939, to avoid the risk of escape.
gBWW