3. Cone Snail
Now this snail is so dangerous that one drop of its venom is more than enough to end 20 human lives. the worst thing about it is there is no cure or some kind of antidote. if it stings you, you are dead whatever you do. it is also known as the cigarette snail because it’s poison kills you as fast as it takes you to finish one cigarette. hopefully, you don’t smoke so that you’ll have time for something more important.