Venomous fish with stings so powerful they can knock people unconscious have been drawn to UK beaches by climate change.
The RNLI is warning sun seekers to stay vigilant if they are planning a trip to the seaside to avoid being stung by weever fish, which are difficult to see because they hide themselves in sand.
The aggressive predatory creatures have stings capable of causing so much pain they have made grown men cry and can make people pass out.
