The chambered nautilus has existed virtually unchanged for 500 million years.
A chambered nautilus has predators such as the octopus, triggerfish, shark and sea turtle.
The chambered nautilus uses gas-filled chambers within its shell to control its buoyancy. By adjusting the amount of gas within these chambers, the nautilus can regulate its position in the water column.
it has chambers
The only extant cephalopod that produces an external shell is the chambered nautilus. The shells produced by squid and cuttlefish are internal.
yes
8 chambers!
A chambered shell
Some features of the chambered nautilus include a perfect equiangular spiral, countershading on the shell and around 90 tentacles. You can get more information about this at the Wikipedia. Once on the page, type "Chambered nautilus" into the search field at the top of the page and press enter to bring up the information.
No. It is a cephalopod that lives in a spirally chambered shell.
The chambered nautilus is a scavenger. It eats the molts of hermit crabs, lobsters, and any carrion it can get hold of. They inhabit the deepest parts of coral reefs, and generally feed at night.
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