Overview

• Marine biologist Gádor Muntaner documented a Glaucus atlanticus near the Serra de Tramuntana, marking the first Mallorca sighting since 1705.
• This pelagic nudibranch feeds on venomous jellyfish like the Portuguese Man o' War and sequesters their nematocyst toxins, causing painful stings.
• Measuring only three to five centimeters, the vibrant blue slug was likely driven ashore by recent westerly winds.
• Local lifeguards and authorities have been notified, and beachgoers are urged to keep their distance to avoid contact.
• No serious envenomations have been reported, though officials emphasize reporting any encounters immediately.