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#chambered nautilus #golden ratio #fibonacci spiral #shell geometry #mathematical nature #perfect spiral #natural design

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#chambered nautilus #nautilus shell #spiral shell #mollusk

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#chambered nautilus #shell growth #logarithmic spiral #marine life phases #ocean dweller #successive chambers #growing shell

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#chambered nautilus #shell chambers #sequential growth #marine structure #buoyancy control #mollusk shell #stepped chambers

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#chambered nautilus #nautilus animal #shell chambers #mollusk growth #marine invertebrate #numbered chambers