Shark swimming sounds are commonly catalogued online as animal sound effects, where they are used to suggest movement beneath the surface rather than a shark call or roar. Because sharks are widely associated with speed, power and suspense in films and documentaries, a short rushing-water clip can instantly signal danger or excitement without showing the animal for long. Editors, streamers and students therefore keep using it for ocean-themed videos, nature projects and reaction clips, where a brief burst of water noise does more work than a longer explanation.