Wildlife of Cameroon hawks and eagles. Elephants are also reported in small numbers. The grassy woodlands have baboons and many species of antelope. Prominent reptiles reported include the African rock python ("Python sebae"), the green bush viper ("Atheris squamigera") and the African slender-snouted crocodile ("Mecistops cataphractus"). Marine turtles reported near the coasts of Cameroon in the Atlantic Ocean are the loggerhead ("Caretta caretta"), Atlantic green ("Chelonias mydas"), leatherback ("Dermochelys coriacea"), hawksbill ("Eretmochelys imbricata"), and the olive ridley ("Lepidochelys olivacea"). Cameroon has enacted legislation to protect all these species of turtles. Olive ridley, leatherback, and green turtles are reported to nest on the sandy
History of manifolds and varieties History of manifolds and varieties The study of manifolds combines many important areas of mathematics: it generalizes concepts such as curves and surfaces as well as ideas from linear algebra and topology. Certain special classes of manifolds also have additional algebraic structure; they may behave like groups, for instance. In that case, they are called Lie Groups. Alternatively, they may be described by polynomial equations, in which case they are called algebraic varieties, and if they additionally carry a group structure, they are called algebraic groups. The term "manifold" comes from German "Mannigfaltigkeit," by Riemann. In English, "manifold" refers to