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Smaller Fish Rely On Safety In Numbers

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When fish swarm in a tightly formed spherical formation, it is called a ‘bait-ball’. It is often used as a last resort strategy when they feel threatened.

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Small fish swim in large groups searching for foods and being able to cross long distances at once.

Swarming like this reduces the probability of being eaten and each individual is using the strength of the group to increase their chance of survival. Although, gathering like this for too long may draw the attention of other predators nearby so it usually lasts no longer than ten minutes.

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