Fig. 7. Histogram of the percentage of orientations at electric-field intensities of <1 µV cm^-1. Scalloped hammerhead sharks Sphyrna lewini (A) and sandbar sharks Carcharhinus plumbeus (B) demonstrate similar distributions across the entire range of field intensities. Approximately 70% of orientations were initiated to stimuli of <0.1 µV cm^-1 for both species, with few orientations requiring a higher field intensity to initiate a response.

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