The act of moving through water with the intent to frighten individuals present in or near that water involves a combination of physical locomotion and behavioral tactics. For example, a marine animal might rapidly approach swimmers to startle them, or create unexpected disturbances on the water’s surface.
Such behavior can influence human activity in aquatic environments, affecting recreational usage of beaches and waterways. Historically, perceived threats from aquatic creatures have shaped cultural narratives and led to the implementation of safety measures, including designated swimming areas and lifeguard patrols.