Will marine heatwaves help these venomous sea creatures thrive in Europe?
Beachgoers have been warned to stay vigilant after a Portuguese man o’ war washed up Anglesey, an island in north Wales.
Closely related to jellyfish, the alien-like sea creatures are recognisable for their striking blue-violet balloon-like floats, thought to resemble a war ship’s sail.
Usually found floating through tropical and subtropical oceans, the creatures have been increasingly appearing on British beaches – especially at the end of summer, when sea temperatures peak.
Read more: euronews.com