Figure 1 in Do chitons have a compass? Evidence for magnetic sensitivity in Polyplacophora

Figure 1. Schematic of test arena surrounded by magnetic coil; subjects were placed within a four-coil Merritt vertical coil in order to manipulate the magnetic field around them, and photographed using a time lapse camera mounted above the arena. ©[Yu-Hsuan Peng (University of Washington)]. Reproduced by permission of Yu-Hsuan Peng. Permission to reuse must be obtained from the rightsholder.