Shells W Widening 01 of 12
Chambered
nautilus
Nautilus pompilius
Each turn is a little over three times as wide as the one before, so the last turn wraps round all the others.
- W widening
- 3.15
- D distance
- 0
- T travel
- 0
- S shape
- flattened
- turns
- 3.1
The settings our model uses to draw it, tuned by eye against photographs.
The real shell · 10–25 cm across
Its name means sailor.
Nautiluses have changed little for hundreds of millions of years and are often called living fossils.
- Lives
- Indo-Pacific; nine living species, all protected under CITES Appendix II
- In the exhibition
- Room 2, Four numbers: one of three shells for W, how fast it widens.