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Nautilus shell cut away, logarithmic spiral, a mouthful.

Cut Nautilus Shell.

Nautilus

Nautilus

nautilus

Art - Nautilus Shell, Cross Cut

Pearl Nautilus shell center cut

chambered nautilus

Nautilus shell

Nautilus Shell

Nautilus shell

Spirals

The shells of ammonites also grow as a logarithmic spiral, a pattern that appears often in nature.

nautilus shell

Nautilus Shell

shell spiral

nautilus

Spiral

shell

shell spiral...

shell