Topsail Island beaches up into the sand dunes. There are four main species that can be found on and around the island which are loggerhead, green, leatherback, and Ridley sea turtles. One species specifically that has been the main theme of protection is the Loggerhead Sea Turtle. This turtle has been the basis for the stationing of the Sea Turtle Rescue and Rehabilitation Center in Topsail Island, North Carolina. Their mission is the protection and watching over of the 26 mile stretch of beach that is Topsail Island. They are committed to the overseeing of hatching of the eggs, caring for sick
History of manifolds and varieties spaces with a differentiable or topological structure, while "variety" refers to spaces with an algebraic structure, as in algebraic varieties. In Romance languages, manifold is translated as "variety" – such spaces with a differentiable structure are literally translated as "analytic varieties", while spaces with an algebraic structure are called "algebraic varieties". Thus for example, the french word "" means topological manifold. In the same vein, the Japanese word "" (tayōtai) also encompasses both manifold and variety. ("" (tayō) means various.) Ancestral to the modern concept of a manifold were several important results of 18th and 19th century mathematics. The oldest