Beachgoers in Cornwall have been warned to exercise caution after swarms of Portuguese man o' war, venomous jellyfish-like creatures, were spotted washed up along the coast. The sightings come as the UK experiences record temperatures, with highs of 40°C in some areas, prompting many to head to the seaside.
The Portuguese man o' war, often mistaken for jellyfish, possess long tentacles that can extend up to 165 feet below the surface. Their venom is used to paralyse small fish and can cause excruciating pain to humans, with rare cases of fatalities reported when swimmers become entangled in the tendrils.
A local community conservation group shared pictures on social media to warn the public. In their post, they reported that 12 people were stranded at Portheras Cove in Cornwall due to the creature's arrival. They emphasised that the animals can still sting even when stranded on sand, and urged dog walkers and beachgoers to remain vigilant.
The neurotoxin produced can cause severe problems, particularly if it comes into contact with the eyes or airways. While the creatures are strikingly coloured in blue, pink and purple, experts advise admiring them from a distance. Commenters on social media expressed shock at the beauty and danger of the animals, with one calling them “nasty beasties.”
Portuguese man o'war have been spotted on British shores several times this year. Despite only 62 reported sightings in the UK over the past year, strong tides and windy weather can lead to them washing up on beaches. Children and the elderly are particularly at risk from their stings.
