Biology Reference
In-Depth Information
Fig. 5.1 Shell shapes generated by the simple cellular automaton models (see the
top four rows
)
and found in nature (see
bottom four rows
). Two parameters are systematically changed: (a) the
overall factor by which the size increases in the course of each revolution and (b) the relative
amount by which the opening is displaced downward at each revolution (Reproduced from
Wolfram 2002, p. 416. With permission)
