St Kilda archipelago is a 55 millions years volcano which collapsed and whose remaining parts of the crater became the islands and stacs. It is a Scottish National Nature Reserve and a Unesco World Heritage site. It is also a Marine Protected Area and a Site of Special Scientific Interest. The scenario of life in St Kilda archipelago appears like absolutely incredible. These steep and arid rocky islands in the North Atlantic 40 miles offshore North Uist an outer Hebridean Island have certainly been inhabited since 4000 years. How men have been able to survive in this hostile environment where the wind can reach 300 km/h on winter time? Further Sheeps have been parked on the island of Soay close to the island of Hirta by people living there on Iron age, around 3000 years ago. This is today the oldest domestic race studied today by a multitude of worldwide scientists.