Independent: For the eighth successive year, the resorts of the north Mediterranean coast are threatened by a monstrous-looking primeval creature from the depths, the jellyfish. Although injuries to bathers have been rare, marine biologists have spotted vast shoals of "mauve stingers" or Pelagia noctiluca in the waters between Corsica and the French mainland. From next week, the town of Cannes will erect booms and nets around its most popular beaches to try to protect bathers from the …