A stunning stinger! Maltese marine biologist sheds light on rare & dangerous sea slug
The Spanish coast is currently experiencing an invasion of these creatures.
Maltese marine biologist Alan Deidun has shed light on a striking yet dangerous creature making waves across Spanish coastlines: the blue sea dragon (Glaucus atlanticus), also known as the blue glaucus or blue swallow.
This rare sea slug, instantly recognisable for its brilliant electric-blue colouring, floats at the very surface of the sea. While it may look otherworldly, its beauty hides a dangerous secret! The creature feeds on the stinging cells of the Portuguese man o’ war, storing the venom for its own defence. This means that anyone who comes into contact with it can suffer from a painful sting, making the blue dragon one sea creature best admired from a distance.
The slug’s dazzling colour isn’t just for show – it acts as protection from harsh UV rays at the water’s surface. Right now, Spanish coasts are experiencing an invasion of these creatures, according to reports from National Geographic and other outlets.
Fortunately, Alan Deidun reassures that the species is very uncommon around Maltese shores, so local swimmers and divers are unlikely to encounter one. The alert was also supported by Dr Mark Zammit from the National Poisons Centre, who confirmed the risks posed by the species.
So while the blue sea dragon may be breathtaking, it’s one Maltese beachgoers can be thankful remains an extra-rare sight in our waters!
Have you ever seen one IRL?