Later on, during the spring, many thousands of big barrel jellyfish started turning up on our beaches. "Both were harmless but these Portuguese man o' war are capable of giving extremely painful ...

The man-o-war, a relative of the jellyfish, has the same capacity to sting on both water and land, and even a dead ...

Despite its translucent appearance and long tentacles, the Portuguese man-of-war isn't a jellyfish — it's not even a single organism. Each man-of-war is a fusion of individual polyps ...

This is what a Portuguese man o' war looks like when it is fully inflated There have been previous sightings of the jellyfish-like creature on beaches in County Clare and County Antrim.

Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish. Not only is it not a jellyfish, it's not even an "it," but a "they." The ...

An invasion of these jellyfish look-alikes has reached Texas coastlines, threatening the safety of beachgoers.

Jamaica Beach officials warn of Portuguese man o' wars washing up on the beach. Similar sightings have been reported in southeast U.S.

Portuguese Men of War have been washing up along the coast in bright blue bunches that may be pretty to look at, but not so ...