Fauna of Nicaragua Many of Nicaragua's birds are brilliantly colored, including various species of parrots, toucans, trogons, and hummingbirds. guardabarranco is the national bird of Nicaragua. Natural range for the scarlet macaw has been vastly reduced by the pet trade. Most of the Pacific region of Nicaragua no longer is inhabited by the species. Nicaragua is home to many nesting populations of sea turtles, including the hawksbill sea turtle, leatherback sea turtle, loggerhead sea turtle, olive ridley sea turtle, and the Pacific green turtle ("Chelonia mydas agassisi"). All of these are endangered or critically endangered species, with declining global populations. Extensive efforts are
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