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Picture | |
from | Encarta |  |
Chambered Nautilus |
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| A cutaway view of the shell of the chambered nautilus reveals the compartments that housed the nautilus when it was smaller. These smaller chambers, now connected together by a small calcified tube, regulate the buoyancy of the nautilus as it swims along. The compartments are filled with nitrogen gas, which is produced by the nautilus. | ||||||
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| Dorling Kindersley | ||||||
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| Appears in these articles: | ||||||
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| Nautilus (mollusk) | ||||||
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