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Beaches in Spanish Tourist Hotspot Shut After Rare, Venomous Sea Slugs Found

Local authorities closed 11 kilometers of beaches to prevent stings from venomous Blue Dragons, which store toxins from Portuguese man o' war, posing serious health risks to swimmers.

  • Rare poisonous sea creatures called 'blue dragons' were spotted on beaches near Torrevieja, Spain, prompting swimming bans along a 7-mile stretch of coastline.
  • The 'blue dragons', known scientifically as Glaucus atlanticus, absorb stinging cells from their prey and can cause nausea, pain, vomiting, and skin rashes if stung.
  • Despite the ban, beaches remained crowded with holidaymakers, although fewer people were swimming, and authorities warned against touching the venomous sea slugs.
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The so-called blue dragons are mollusks of just centimetres in length, soft textured and endowed with six appendages, extensions of his body.

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Closed beaches along the coast of Alicante, Spain, after these molluscs have made their appearance: what is happening

·Italy
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merkur.demerkur.de
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Center

Because of "blue dragons, the beaches in a Spanish holiday region are blocked for miles. People should not touch the animals.

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Lean Right

The blue dragon (Glaucus atlanticus) is a species of marine slug with a surreal look that is very striking, but that you will prefer to see in the distance or in videos of the internet. Its small bluish tentacles are provided with a toxin that can cause effects on some people or pets.

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Center

The City of Guardamar del Segura, in Alicante, has been locating on its beaches for several days new specimens of blue dragons, a poisonous marine mollusk whose bite is very painful.After the findings of this week that caused the closure of the beaches during Wednesday and Thursday, five other specimens have been detected again, so this Saturday they have had to raise the red flag again and prohibit the bath in these places.The mayor of the town…

·Madrid, Spain
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Adevarul broke the news in Romania on Thursday, August 21, 2025.
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