Killer 'jellyfish' which can grow to 160ft long are washing up on Britain's beaches
Portuguese man o'war have washed up on beaches in parts of Britain sparking warnings from wildlife experts.
This creature, often mistaken for a jellyfish, can stretch its tentacles up to an incredible 160ft long and can kill a human even if the creature is dead.
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Hide AdMan o'wars, also known as bluebottles for their purple bodies, can deliver excruciatingly painful stings but are rarely deadly to humans.