The eggs and hatchlings of the chambered nautilus are the largest of all cephalopods.
The shape of the museum is like a giant, spiral seashell - a nautilus - made of concrete.
Some patterns in nature are formed by natural growth mechanisms, as with the spiral shape of the nautilus shell.
Most resorts in Manado can make special arrangements with local fishermen to show you the prehistoric nautilus .
The aborigines believe that the skeleton of each dead moon drops into the sea and becomes the shell of the chambered nautilus .
The shell contains a gas which makes it semi-buoyant, permitting the nautilus to change depth and to swim.
The pearly nautilus is an exception to most generalizations about cephalopods.
Unlike most other cephalopods that have a short life span, the chambered nautilus can live 16 or more years.
Geology students recommend you check out the nautilus shells in limestone mounted on the bar.
The beautiful nautilus shell is white to orange, with white stripes and a central, black whorl.