Polar seas Polar seas Polar seas is a collective term for the Arctic Ocean (about 4-5 percent of Earth's oceans) and the southern part of the Southern Ocean (south of Antarctic Convergence, about 10 percent of Earth's oceans). In the coldest years, sea ice can cover around 13 percent of the Earth's total surface at its maximum, but out of phase in the two hemispheres. The polar seas contain a huge biome with many organisms. Among the species that inhabit various polar seas and surrounding land areas are polar bear, reindeer (caribou), muskox, wolverine, ermine, lemming, Arctic hare, Arctic ground squirrel, whale,
Beaufort, Luxembourg castle and the chateau are owned by the Luxembourg state. Beaufort, Luxembourg Beaufort (, ) is a commune and town in eastern Luxembourg. It is part of the canton of Echternach, which is part of the district of Grevenmacher. In 2005, the town of Beaufort, which lies in the centre of the commune, had a population of 1,366. Other towns within the commune include Dillingen. The old castle, protected by a moat, was built in four periods. Based on a document of 1192, it is assumed that Walter of Wiltz and Beaufort was the first Lord of Beaufort. The oldest