The Blue Ringed Octopus
Pacific Ocean and Indian Ocean are the places where the blue ringed octopus is found. This creature is lesser known but in the marine creatures, this is the most poisonous one that is existing on the earth. The ruse that fools its enemies and predators is its blue color. This creature that is just 20 cm in length has the venom that is able to kill about 20 people. A variety of toxins like histamine, tetrodotoxin, dopamine, acetylcholine, turbine and tryptamine could be injected by just one dose of blue ringed octopus.