Files in this Data Supplement:
Fig. S1. Forward speeds during escape behaviors (responses to an abdominal tap). Each black trace represents a different animal, and the traces are aligned to the time of stimulation (pink bars). Five animals were stimulated a second time, indicated by a second bar. The horizontal dashed lines represent the average speeds for each gait (compare with Fig. 2): 10 cm s−1 for ambling (red), 30 cm s−1 for trotting (blue) and 43 cm s−1 for the fastest escapes (green). The dashed black line indicates 0 cm s−1.