Beachgoers and surfers are being warned of a surge in the number of deadly Portuguese men o’war off the coast of British beaches.
The creatures, which resemble jellyfish but are in fact a colonial organism known as siphonophores, can inflict a severe and painful sting which in some cases can be fatal.
They have been appearing in increasing numbers on beaches in south-west England, Wales and Ireland. There have even been reports of a man o’war being washed up as far north as the Isle of Man.
According to the Marine Conservation Society their increasing numbers on British beaches has been caused by global warming and a rise in sea temperatures.