Movie 1.

Simultaneous views from the side and bottom cameras showing the sea star whose data is shown in Fig. 5C. This composite video was made from the original side and bottom videos. It was prepared by inserting the original videos into PowerPoint to get composite side and bottom videos, playing them simultaneously in PowerPoint, and taking a QuickTime movie of the composite videos. Frame rate and resolution are likely altered relative to the originals, so these supplemental videos should not be used by readers to obtain data.