The Mediterranean monk seal (Monachus monachus) is a monk seal belonging to the family Phocidae. As of 2015, it is estimated that fewer than 700 individuals survive in three or four isolated subpopulations in the Mediterranean, (especially) in the Aegean Sea, the archipelago of Madeira and the Cabo Blanco area in the northeastern Atlantic Ocean. It is believed to be the world's rarest pinniped species. In Thassos the Mediterranean monk seal has disappeared about 40 years ago. The last 15 years have happily made their reappearance on our island. You can see them more in the winter when the sea is without many boats and people but if you are lucky maybe also in the summer.
Photos are from Aliki