A Nautilus shell on the beach. The nautilus shell presents one of the finest natural examples of a logarithmic spiral. Bellybutton Nautilus (Nautilus macromphalus) is a species of nautilus native to the waters off New Caledonia, the Loyalty Islands, and northeastern Australia. Mollusk Beach Cypraea Nautilus (Nautilus macromphalus)
A macro shot of the inside of a nautilus shell isolated on a white background. The spirals inside are one of the known shapes that represent the golden number or phi. Animal Shell Nautilus Phi Nautilus
Ancient cephalopods - the Nautilus, being a relative of the octopus, squid and cuttlefish. Very interesting and unique marine animal. Crawling Swimming Animal Underwater Nautilus
Nautilus shell,the perfect example of sacret geometry and fibonacci mathmatics. Nautilus Fibonacci Pattern Geometry Nautilus
The Golden Ratio and Fibonacci Sequence are present in this marvellous natural structure. See also Nautilus lightbox: Fibonacci Pattern Nautilus Animal Shell Nautilus