In a remarkable and unexpected encounter that has marine biologists buzzing, a volunteer diver has shared unprecedented footage of an endangered great white shark spotted in the Mediterranean Sea, between the coastlines of Tunisia and Sicily. The diver, who asked not to be named, recalled experiencing intense shaking as he came face-to-face with the massive predator, an encounter that most divers only ever dream of. Great white sharks are rarely documented in this part of the Mediterranean, making the new footage a significant contribution to marine ecological research. Sightings of the species have dropped sharply across the globe in recent decades due to overfishing, habitat degradation, and accidental bycatch, leading to their classification as an endangered species by major conservation organizations. Marine researchers say this rare documentation offers a critical new clue about the species’ range and potential habitats in the Mediterranean, a body of water that has long been understudied when it comes to large predatory sharks. Conservation teams are now hopeful that this sighting will highlight the need for stronger protections for marine biodiversity in the region, and help scientists better understand how endangered shark populations are adapting to changing ocean conditions.