Poisonous Portuguese Man O’ War Jellyfish Sting Spring Breakers

If you thought a regular jellyfish sting was painful, you definitely wouldn’t want to feel what a Portuguese Man O War could do to you - and they’re plaguing spring break beaches. The huge creatures look like jellyfish, but with one major difference: their venom-filled stingers can grow as long as 100-feet. Marine biology student Jessica Ganim was on a boat off the coast of Miami when she dipped her hands in the water and got stung, leaving her with horrible swelling and blisters.