Jellyfish crux — food for thought

THE jellyfish has no brain, no bones and no teeth.

Although sensitive to light, it lacks eyes. Despite such handicaps, it has among its ranks some of the world’s nastiest creatures.

Most species are harmless but a few can inflict lethal stings on creatures as large as us. Box jellyfish are more dangerous than sharks. Jellyfish ‘blooms’ are reported from time to time off Irish beaches.