9. Irukandji jellyfish
via:www.planetdeadly.com
Found in beaches from northern Australia to Florida, watching the box jellyfish is as dreamy as what you thought it would be.
Otherworldly. Ethereal. Dreamy. Deadly.
These creatures are extremely dangerous as their tentacles are loaded with toxin. The toxin is said to be 100 times more potent than a cobra and up to 1, 000 times worse than a tarantula. Impressive for a creature only about one cubic cm in size. Also See: 10 Most evil men in history of the world – You will be shocked to see their evil deeds (With Pictures)
These tiny jellyfish have been known to fire their stingers at their victim. Due to their tiny size, their sting may not be felt immediately they attack. But within 30 minutes, victims start to complain of severe headaches, nausea, abdominal pain, sweating. Without immediate treatment, victims experience tachycardia, increased blood pressure and go into cardiac arrest.
There is currently no known antivenom; treatment is by an immediate infusion of magnesium into the patients bloodstream. Its distant cousin, the sea wasp has the infamous record of killing more people every year than sharks and crocodiles combined.
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