How Do Fish Schools Move in Perfect Sync?

Fish schools move like a big, living dance. Each fish follows the one in front of it, kind of like how you follow your friend in line at the cafeteria. If one fish turns, the others quickly copy it, and soon everyone is moving together like they're all thinking as one.

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Examples

A school of fish turns suddenly because one fish near the front notices a predator and quickly swims away, setting off a chain reaction.
Like how waves ripple through a crowd when someone steps back in line at the movies.
A group of ants all moving together as they carry food back to their nest.

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Categories: Biology · fish,schooling behavior,communication