creatures washed up on UK beaches, shocking beach-goers due to their odd appearance. The Royal National Lifeboat Institution alerted Brits following reported sightings of an "alien" like sea creature in Lancashire and Southport over the weekend.Portuguese man o'wars, which are also known as blue bottle jellyfish, are highly venomous and can have tentacles as long as 100ft.The creatures can kill humans in some cases, although it is rare.
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