4800 x 3600 px | 40,6 x 30,5 cm | 16 x 12 inches | 300dpi
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Nautilus is called a living fossil. Relatives of this animal existed in the distant past, probably since the Cretaceous. Nautiluses are cephalopods. They are related to squid and octopuses. The shell is highly symmetrical and is often used as an example of mathematics in nature. Some scientific or mathematical concepts embodied are: Bernoulli spiral, constant angle, equiangular spiral, geometric progression, gnomonic growth, golden section spiral, logarithmic spiral, polar equations, radial vectors or radius vector, successive increments, tangent angle, volute, and symmetry.
