How does the nautilus swim underwater, even though it has no fins and lives in a shell? Stella y.c. tells this story using pen drawings and Flash animation. Music is by Hiiragi Fukuda - freemusicarchive.org/music/hiiragi_fukuda/
Nautilus pompilius L., in section, showing the Septa (s,s), the septal necks (s.n., s.n.), the siphuncle dotted in (si), and the large body chamber (ch).
