The 10 most dangerous fishes in the world (With Pictures)

2. Box Jellyfish

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Box Jellyfish is different in a number of ways than their other family members as they have more developed nervous system and has real pair of eyes. It has long flagella and deadly poison, according to resources the Box Jellyfish poison can cause death within few minutes while the marks left by its sting is for eternity. Its poison attacks the cardiac activity as the victim experiences extremely low heart rate.