
By DAILY MAIL REPORTER Nothing to trifle with: Swarms of jellyfish like these pelagias are taking over the Mediterranean and could be a danger to tourists, warn experts Enormous swarms of jellyfish - some of them deadly - are taking over the Mediterranean, a top scientist has warned.The holiday hotspot, a favourite with Brits, has seen a sharp increase in numbers and could turn into an 'ocean of jellyfish'. Now researchers have set up a 'Jellywatch' so the public can report sightings via a website or by using a phone app. Invasion: Blooms of Aurelia jellyfish like this one await sun-seekers heading for a winter break in the Mediterranean.. and...