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 ...

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 ...