Why do fish swim in groups? See moreš
1. To protect themselves. Swimming in groups of identical fish can confuse predators and make them harder to catch.
2. To increase the chances of finding food: more fish = more eyes to scan for food.
3. To improve swimming efficiency. Swimming in groups reduces friction between the fish, so they conserve more energy.
A group of fish from the same species is called a school of fish, while those with mixed species are called a āshoalā of fish.
In these groups, fish follow two rules: to stay close (but not too close) to the other fish, and just keep swimming. The school emerges when fish are following these rules, which may lead to circling patterns such as in this video.
Fish are carefully attuned to the movements of the other fish in the school, so if one fish changes direction, the rest of the school quickly follow suit š
#EarthCapture by @benjhicks
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#Fish #MarineAnimals #DronePhotography
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