Here are the U.S. beaches with the most jellyfish stings, plus which species are common, and expert tips on how to avoid and ...

A team of university students in Japan identified an entirely new species of the mighty Portuguese Man O’War. Described in a ...

The Portuguese man-of-war, or Physalia, is a jelly-like creature that uses a special gas-filled balloon to float on the sea ...

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"I came across this unique jellyfish I had never seen around here before [...] So I scooped it up, put it in a ziplock bag, ...

A dangerous jellyfish has been spotted on the beach, a single sting from which can be fatal. Where was this jellyfish found?

A new species of venomous Portuguese man-of-war, Physalia mikazuki, has been discovered in northern Japan. Genetic evidence ...

Dangerous Portuguese Man O' War have washed ashore on popular Welsh beaches. Authorities are warning the public to avoid contact with these venomous creatures. Even dead specimens retain their sting.

A student-led research group from Tohoku University has discovered a new species of the venomous Physalia (commonly known as Portuguese man-of-war) that has never been seen before in northeast Japan.

An international team of researchers are attempting to find ways to forecast the movements of Portuguese man-of-war.

The Port Talbot Coastguard has issued an urgent warning after several Portuguese Man O' War, also known as "Floating Terrors, ...