Nautilus
Nautilus
Nautilus (/nɔːˈtɪləs/; from Ancient Greek ναυτίλος, 'sailor') is a genus of cephalopods in the family Nautilidae. They are marine creatures known for their biconvex shell that is divided into camerae (chambers).
Etymology
The word Nautilus is derived from the Ancient Greek ναυτίλος, which means 'sailor' or 'ship'. The name was given due to the creature's unique shell, which resembles a ship's sail.
Description
The Nautilus is a marine creature that is known for its biconvex shell. The shell is divided into camerae (chambers), which the animal can fill with gas or fluid to control its buoyancy and movement. The creature itself resides in the largest chamber at the end of the shell.
Related Terms
- Cephalopod: A member of the molluscan class Cephalopoda, which includes squids, octopuses, and nautiluses.
- Camerae: The chambers within the shell of a nautilus.
- Buoyancy: The ability of an object to float in a fluid by displacing a weight of fluid equal to its own weight.
See Also
External links
- Medical encyclopedia article on Nautilus
- Wikipedia's article - Nautilus
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