Movie S1

Videos of trials for the examples shown in Fig. 2, panels A and C. For higher resolution and additional videos, including an extended version of this video and videos of sharp turns and escape points, go to https://youtu.be/vN4P8tq5DVw, https://youtu.be/-gz3tUbTpdU, or https://youtu.be/LcYkzdDh10Q, respectively.