Movie S1.

Fast ear motions recorded in a greater Himalayan roundleaf bat (Hipposideros armiger). The video is based on a contiguous sequence of 57 frames recorded at a frame rate of 400Hz. In the video, these frames are played three times at different frame rates: slowed down four times (corresponding frame rate: 100Hz), original speed (corresponding frame rate: 400Hz), and slowed down 80 times (corresponding frame rate: 5 kHz). The actual frame rate will depend on the playback device used.