Every month, museum visitors choose the exhibit they like best. What caught their attention in November was Morus bassanus, Europe's largest seabird. This is the largest species of its family (Soulidea). Adults of this species weigh from 3-3.4 kg. Morus bassanus is found mainly in the North Atlantic but is relatively rare in Greece. The colonies they create are characteristic, while they nest mainly on rocky and steep cliffs above the sea. The usual breeding months are March and April. Their only egg is blue, and they incubate it with the legs and not the abdomen! Their species does not show any racial dimorphism. The mating dance involves the intersection of the couple's beaks with a parallel raising of the head. Morus bassanus feeds mainly on fatty fish that form flocks, such as sardines, herring and / or cod, etc. In order to find food, they can dive up to 25m!