The big, blue jellyfish washing up on Florida beaches this week actually aren't jellyfish at all. Here's what to know about ...

The Portuguese man-of-war is not a jellyfish, but is closely related. The name comes from its resemblance to an 18th-century Portuguese warship at full sail, according to the NOAA website.

Recommended Videos The City of Jamaica Beach posted on Facebook Monday warning the public to be cautious while walking on the beach due to an infestation of Portuguese Man o’ War. These ...

With its mohawk-like feature, the Portuguese man-of-war is a decidedly punk-rock sea creature. But that's just one of the many odd and interesting facts about this organism—or should we say ...

HOWEVER, THE RESULTS HAVE NOT BEEN Emerald Isle Beach in North Carolina has issued a warning about Portuguese man-of-war washing ashore. Officials said they’re highly dangerous and can sting you ...

Portuguese man o' war, often mistaken for jellyfish, have been sighted on Florida beaches. While rarely fatal to humans, the sting can be intense and should be treated with hot compresses ...

With the weather turning warmer, people visiting beaches in Galveston and other spots along the Texas coast are reporting more Portuguese man-of-war sightings. The species may look pretty and ...