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.
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 ...
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 polyp stage of their lives is usually more conspicuous than the small adult jellies. However, not all hydrozoans are considered jellyfish. For example, the famous Portuguese man o’ war is part of ...