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Fig. 5. (A) Average grade of cuttlefish disruptive body patterning shown on
substrates S1–S6. Cuttlefish were highly disruptive on S1 and their
disruptive scores diminished as more sand was added to the substrate. Grading
scores were low for S5 and S6. Images are representative body pattern shown on
each substrate. Error bars are s.e.m.; N=9. (B) Number of dark and
light rocks in animals' vicinity as a function of body patterning (disruptive
and non-disruptive; see text for details). In the presence of dark rocks,
animals showed disruptive or non-disruptive coloration, depending on whether
or not light rocks were present. Light rocks consistently evoked disruptive
coloration. Images are examples of body patterns shown. Data obtained from
trial on S4 (total of 90 images). Error bars are s.e.m. (C) Average grade of
disruptive body patterning shown on four substrates (SA–SD). Disruptive
coloration was shown on sand with white rocks and sand with white and black
rocks (SC and SD). Animals were non-disruptive on sand and sand with black
rocks (SA and SB). Error bars are s.e.m.; N=12.
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