Rather than floating along with the tide as many jellyfish do, box jellyfish can propel themselves with a powerful jet of water, Speeds of up to 20 feet per ... ladder-like burn marks on the ...

Although a few kinds of jellyfish can cause life-threatening stings, mostly it just burns, swells, itches, and leaves tracks along your skin. Here's how you treat it Rinse your skin in salt water.

"Jellyfish stings will leave a rash and can be quite painful with a burning sensation," BBC's Countryfile ... lightly furred areas such as the face, feet, and abdomen. "They are also at risk ...

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