The killer Portuguese jellyfish have washed up on British shores, prompting an immediate warning from wildlife experts for Brits and their pets.
The Portuguese man has moved to Britain after the recent stormy weather and anyone who comes close to him is in danger.
Creatures, often mistaken for jellyfish, can extend their tents to an incredible 160 feet long and have the ability to kill humans long after they die.
Man O War, also known as the Blue Bottle for his purple body, can give extremely painful stings, but it is worth noting that these stings are rarely deadly to humans.
Occurrences are rare, but stormy weather has pushed these creatures from their usual open sea area to the shallow waters of the British coast.
They have no independent means of movement and often move with winds or tides. They wash on British shores between September and December.
Where have they been seen?
Named the “Floating Terror”, the creature has been spotted near the tourist attractions of Cornwall, Sean Beach and Portiras Cove.
Man or war can be in groups of up to one thousand. People have been urged not to approach these creatures and to remove any pets from the beach.
A spokesman for the Wildlife Trust said: “First of all, the Portuguese man is not an over-jellyfish. Such as feeding.
“They cannot live separately and work together as an ‘animal’.
“The Portuguese man lives on the surface of the high seas, floating with a gas-filled bladder. At the top is a crust-like structure that acts as a cell.
“They can’t swim and are at the mercy of the winds – which is why they are often washed ashore after major storms.
“They are terrifying predators, catching small fish and crustaceans with their long stinging tents.
“These are the tents that you also need to pay attention to – they can sting long after the animal dies.”