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The underwater world is also the law of the jungle, and fish will swim in groups, such as red-nosed scissorfish, triangular lantern fish, tiger skin fish, traffic light fish, Baolian lantern fish and other types.
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Know. These fish in my house like to swim in groups, and they swim very beautifully, very beautifully.
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I don't know, but their habits, they do it for their own safety and for their reproduction.
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This is the same reason as geese lining up to fly. When the fish in the front row swim forward, it will drive the water between the fish, causing it to form a forward current, and the fish in the back row are in this forward current. In this way, the fish in the back row can move forward at the same speed as the fish in the front row with less energy.
Therefore, fish always like to swim in groups.
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In fact, this is inseparable from the natural gregariousness of some small fish in schools because they are newborn and feel more secure together, and some are instinctive.
There are a lot of very small fish in the water, they have nothing to resist the enemy's attack, and they can only run away as soon as possible when they encounter the enemy. If they move sporadically and can be eaten at any time, they swim together in groups, even if they are attacked by enemies, some of the small fish can still escape. So, small fish always swim together in groups.
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Because each animal has some ways to protect itself and survive, there are many particularly small fish in the sea, they have nothing to resist the enemy's attack, if sporadic activities, they will be eaten at any time, if they swim together in groups, it is an enemy attack, and some of the small fish can still escape, so such small fish always swim together in groups.
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They are supposed to be social animals.
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Because each animal has some ways to protect itself and survive, there are many particularly small fish in the sea, they have nothing to resist the enemy's attack, if sporadic activities, they will be eaten at any time, if they swim together in groups, it is an enemy attack, and some of the small fish can still escape, so such small fish always swim together in groups.
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Rivers, lakes and the sea provide a vast place for fish to live. However, about half of the world's fish prefer to move in groups. Why is that?
Ichthyologists have observed that most of the fish that like to flock in small groups are small. In the world of the strong and the weak, in order to resist the attack of the big fish, the small fish have to unite and form a group. Because when the big fish rushes at us, the small fish scatter and flee, and the big fish will be distracted so that they will not know which small fish to pursue.
In this way, it increases the chances of escape for the weak. The target of a school of fish is obviously much larger than a lone fish. This is undoubtedly disadvantageous for small fish.
However, in dimly lit turquoise waters, where the target is large enough to "cover the sky," the carnivorous fish will be dazzled by a few hundred meters away, and it will be impossible to distinguish between the small fish. As a result, the members of the fish feel safer. Of course, some carnivorous fish also take collective action.
However, they do not move in groups to escape more ferocious fish, but to lay a "net of heaven and earth" to surround the small fish and better prey on them.
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According to incomplete statistics, 25% of the more than 20,000 species of fish recorded in the world will gather in schools throughout their lives, and 50% will gather in schools in the juvenile stage, indicating that fish clusters are quite common. For example, the Japanese Sea mackerel school is made up of 50,000 100,000 individual fish, and the average thickness of the Pacific herring in the bait is nearly 3 meters, and the maximum diameter of the fish is more than 50 meters, while the largest Pacific herring school is 1 million 3 million.
Biologists generally believe that the swarming behavior of fish not only reduces the probability of being spotted by fish, but also reduces the probability of being killed by predator fish. Because in the vast ocean, the more individuals that make up a school of fish, the less likely it is that individual fish will be found.
Interestingly, not only do small fish congregate in groups, but also some large predator fish such as tuna and bonito. Obviously, large predator fish are able to find food more and faster in groups than when they act alone. Scientists have shown that in addition to defense and predation, swarm behavior plays other roles in the lives of fish.
Schools of fish are more resistant to adverse environments than individual fish alone. From a hydrodynamic point of view, swimming in clusters in the water saves the energy expenditure of individual fish. Clumps of fish also find their migration routes more quickly during migration.
Most fish gather together for mating and spawning, which is decisive for fish reproduction and the continuation of the race. For a large number of small fish, swarming can increase the safety factor, which is conducive to their survival and development in an environment where large fish eat small fish.
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The movement of small fish in schools is an instinct formed as a result of the long-term evolution of their ancestors.
1) Small fish are very easy to be preyed on by predators if they act alone. The group of trapped tombs swims to find natural enemies and escape in time. Even if it is attacked, it will not be wiped out, and children and grandchildren will be cut off!
Spring type 2) They move in groups to help find food in time and then share it! so that they do not starve.
3) Wang Senqi is conducive to his rapid learning and growth.
4) Small fish that move in groups have the same bloodline, that is, they are all brothers and sisters, which is conducive to maintaining the purity and singleness of the bloodline of their species!
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Answer: Because every animal has some measures to protect itself and seek a way to survive, there are many unusually small fish in the sea, and they are judged to have no weapons to resist the enemy's attack, and if they are scattered, the city is eaten at any time, and if they swim in groups of three or five along the way, it is to catch up with the enemy's attack, and one of the small fish in this department can still escape, so the small fish such as Xu are always selling and swimming in groups.
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