Experts have warned swimmers that popular beach resorts around the world are seeing huge increases in jellyfish activity as a result of overfishing and changing water temperatures.
Scientists say populations are growing faster than ever before and that this past summer southern Europe has experienced one of the worst jellyfish infestations ever.
Dr. Lisa-Ann Gershwin, author of Stung! On Jellyfish Blooms and the Future of the Ocean, told CNN: "In Hawaii there have been times that 800 or 1,000 people have been stung in a day.
"In Spain or Florida, it's not uncommon in recent years for a half a million people to be stung during an outbreak. These numbers are simply astonishing."
According to WMBF News, experts say that urinating on a jellyfish is not a good idea either, as urine can actually cause the stingers to release more venom.
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