All over the shallow surf and along the beaches are blue and purple man o' war, the jellyfish-like sea creatures that pack a powerful sting to those not only in the water but those who step on their tentacles on the sand.
"My 'hunch' is there is a seasonal shift in tradewinds, currents, or occurrence/frequency of winter storms that creates an onshore flow driving the animals onto the beaches of south Florida in the winter," William "Monty" Graham, director of the Florida Institute of Oceanography, said in an email to the Miami Herald.
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