Fig. 5. A model elasmobranch with three approach strategies to a prey dipole
parallel to north. Initially, at
point A (40 cm east and 40 cm south of
) the model reacts to the dipole field.
Point B (40 cm east and 10 cm south of
) is on the path of the elasmobranch if
it were to maintain its original course; point C (30 cm east and 10
cm south of ) is on a path maintaining
orientation towards the dipole field; point D (20 cm east and 20 cm
south of ) is on the path after an
abrupt turn to approach the prey directly.
