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Fig. 4. Representative examples of the ventilatory (A) and cardiac (B) reactions to
startling stimuli. The stimulus was presented at time 0. Vertical lines
delineate resting behaviours and reaction stages 13. Broken lines
delimit the maximum and minimum rates before the stimulus. Circles emphasize
maximum and minimum rates after the stimulus. (A) Cuttlefish #12: decrease in
ventilation rate: 78.9% (Video 2 in supplementary material). (B) Cuttlefish
#22: decrease in heart rate: 28.3%.