Fig. 9. Orientation pathways demonstrated by scalloped hammerhead sharks Sphyrna lewini and sandbar sharks Carcharhinus plumbeus with frequency of occurrence of each type. Solid red lines indicate voltage equipotentials around the dipole, and black arrows indicate the path taken by the sharks. Current flow is indicated by the colored lines, with highest intensity (red) nearest the center of the dipole and lowest intensity (blue) furthest away. Whereas the scalloped hammerhead sharks demonstrated a greater variety of orientation pathways, the sandbar sharks were unable to exhibit the same repertoire of behaviors owing to their stiffer bodies.