Spectacular Video Shows Schools of Fish Forming a Bait Ball

StoryfulPublished: May 27, 20172 views
Published: May 27, 2017

Prue Wheeler was out for a morning snorkel along Western Australia’s Ningaloo Reef on May 5 when she saw an extraordinary sight: schools of fish forming a <a href="http://ocean.si.edu/ocean-photos/bait-ball" target="_blank">bait ball</a> that then slowly diminished in size.

A bait ball is created when small fish move tightly packed in a spherical formation around a common center. It is a defensive measure adopted by small schooling fish when they are threatened by predators.

Wheeler told Storyful that “these defense maneuvers almost [appeared] choreographed as their silver bodies dazzle in the most incredible formations.”

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