Fig. 1. Silhouettes of dogfish fast-starts. The first 280 ms of a fast response (left panels) and a slow response (right panels) are shown. Numbers indicate time in ms after the onset of the response. Note the faster rate of bending in the fish on the left panels when compared with the right panels, i.e. the fish's shape in the fast response after 120 ms is similar to the fish's shape after 200 ms in the slow response.