Files in this Data Supplement:

• Video 1 -

  An example of the behaviour of a cuttlefish before and after a sudden visual stimulus.  Notice the four locomotory stages of the reaction (described in Table 3), the postural changes (widening of mantle and arms), and the chromatic and textural changes (components of the Deimatic Display).  This cuttlefish did not show pronounced Mantle paling.

• Video 2 -

  An example of a sonogram of the collar flaps before and after presentation of a sudden visual stimulus.  For identification of important postural parameters, see Fig. 2B.  Note that videos are rotated 180° from Fig. 2B.  Notice the decreased dorso-ventral height and the increase of area ‘d’ after the stimulus.  The white object moving in space ‘d’ is the collar flap.  The medial, circular pulsating structure is the anterior vena cava.  This trial is presented graphically in Fig. 4A.

• Video 3 -

  An example of a sonogram of the ventricle before and after presentation of a sudden visual stimulus.  For identification of important postural parameters, see Fig. 2C.  Note that videos are rotated 180° from Fig. 2C.  Notice the increased dorso-ventral height and the increase of area ‘f’ after the stimulus.  Notice how all contractions stop during hyperinflation (hyperinflation is the increase in area ‘f’), and then resume as hyperinflation subsides.