People visit an exhibition of exotic species of fishes and vegetals which invade the mediterranean sea and the rivers of Italy, on April 17, 2014 at the Bioparc in Rome. AFP PHOTO / TIZIANA FABI
People visit an exhibition of exotic species of fishes and vegetals which invade the mediterranean sea and the rivers of Italy, on April 17, 2014 at the Bioparc in Rome. AFP PHOTO / TIZIANA FABI