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 ...

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 ...

"It's the biggest we have ever recorded and they are still coming in," he said. The man-of-war can be tempting to ... The (Physalia physalis) is not a jellyfish, but a floating colony of organisms ...