Nautilus shells, zebra stripes, river islands, and the cross-section of onion all contain soft cell shapes. To be characterized as a soft cell, all two-dimensional soft cells must have at least ...

The chambered, or pearly, nautilus (Nautilus pompilius) is a charismatic cephalopod species known for its exceptional spiraling, chambered shell. It belongs to a family that has barely changed since ...

X-ray of Nautilus Shell (Edward Charles Le Grice, c.1910) shows how progressive rhythym can be found in nature. The shell is made up of a series of identically-shaped sections that grow larger as ...