📸: Jacinta Shackleton • Glaucus atlanticus sea slug, or blue dragon, is a pelagic nudibranch that sails on the surface of the ocean. They are typically just an inch long, and feed on the toxins of much larger species such as Portuguese man o’ wars, which have tentacles around 30 feet. The blue dragon is immune to the toxins, and collects them in special sacs within the finger-like branches at the end of its appendages. When threatened or touched, it can release stinging cells with more powerful

670K views · 10K reactions | Remarkable-looking creatures called blue dragons are washing up by the thousands on Gulf of Mexico beaches this week. Wildlife officials are warning beachgoers to “look but don’t touch.” That’s because the sting of these rare molluscs is excruciatingly painful. | Inside Edition | Facebook