50.2 MB (554.1 KB compressed)
4835 x 3626 pixels
40.9 x 30.7 cm ⏐ 16.1 x 12.1 in (300dpi)
HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Chambered nautilus shell. Section through the shell of a chambered nautilus (Nautilus pompilius), showing the internal chambers. The nautilus is a marine cephalopod mollusc related to the octopus and squid. It has a spiral shell divided into many chambers, of which the animal inhabits only the outermost. The rest are filled with gas and fluid.
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