Atlantic Ocean encircled by the Gulf Stream, North Atlantic Drift, and North Equatorial Current. This population of seaweed probably originated from Tertiary ancestors on the European shores of the former Tethys Ocean and has, if so, maintained itself by vegetative growth, floating in the ocean for millions of years. Other species endemic to the Sargasso Sea include the sargassum fish, a predator with algae-like appendages who hovers motionless among the "Sargassum". Fossils of similar fishes have been found in fossil bays of the former Tethys Ocean, in what is now the Carpathian region, that were similar to the Sargasso Sea. It is
Atlantic Europe Atlantic Europe Atlantic Europe is a geographical and anthropological term for the western portion of Europe which borders the Atlantic Ocean. The term may refer to the idea of Atlantic Europe as a cultural unit and/or as an biogeographical region. It comprises the Atlantic Isles (Great Britain and Ireland), Iceland, Belgium, the Netherlands, the central and northern regions of Portugal, northwestern and northern Spain (including Galicia, the Southern Basque Country), the southwestern and western portion of France (Northern Basque Country), western Scandinavia and northern Germany. Weather and overall physical conditions are relatively similar along this area (with the exception of