What specific movements rely on the Yellow Tang's pectoral fins?
Answer
Precise, delicate movements when hovering or maneuvering close to the substrate
While the tail fin (caudal fin) is responsible for powering the primary mode of locomotion through rapid undulation, the pectoral fins serve a specialized function crucial for feeding behavior. These fins are essential for enabling precise and delicate movements. This fine control allows the Yellow Tang to hover steadily in place or maneuver delicately in close proximity to the substrate, such as rocks or coral skeletons, enabling it to perform the meticulous grazing required to nip off minute portions of algae without disturbing the surrounding structure.
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