It takes tens of millions of years for the birth of life. Why do fish appear this year in the pond dug last year?

In recent years , the agriculture, rural areas and agriculture industry can be said to be a hot spot in the market. Vegetable planting and animal husbandry are all farmers' keen livelihoods. If you want to say that the most popular thing at the moment is fishery. Fish breeding bases of various species sprung up like mushrooms after rain, and fish ponds were built on the desolate mountains .

When digging a fishpond on a mountain, the site is usually selected, and after that, it is poured into the river to form a water area. The last step is to select the fish to be farmed . Buy fish fry in batches from the market and start feeding them from a young age . Generally, after one or two years, the fish will be basically adults and can be sold. This business model can be said to be very mature.

Recently, a relative also had this idea, so he also chose a piece of land, dug a fish pond, and prepared to buy fry after filling the water. Since it is the rainy season in summer , it has been raining and the road on the mountain is slippery and inconvenient for travel and transportation , so he planned to wait for the weather to clear up in a few days before driving to the market to buy, and something unexpected happened to him.

One morning when he came to the edge of the fish pond, he found that there were many small fish fry out of thin air in the fish pond. He took a closer look and there were several loach and eels in the fish pond . This friend thought it was a small part brought in when the river was diverted, but he fished out all of them so that the species of new fish would be confused after putting in new fish .

But it doesn't matter if you catch a net, dozens of fish can be caught at once, and many of them will be distributed to relatives if he can't let them go . The harvest that comes out of nowhere makes him very happy . But when I think about it, I feel something is wrong. Why have so many fish appeared out of thin air before I released the fry? Is there any scientific reason for this ?

So he asked a local master who has experience in fish farming for advice. When he asked this question, the master laughed. This kind of thing seemed so normal to them. These fish are not favored by heaven , and their arrival also has a natural growth law . In summary, there are several possibilities for the emergence of fish .

1. The vitality of fish eggs is much more tenacious than you imagined

There is such a sentence in the poem, the wild fire is endless, and the spring breeze blows and regenerates. It means that the vitality of grass is very tenacious . In fact, the reason why grass has such a strong vitality is because of the tenacious survival of grass seeds. Grass seeds can survive for decades in nature.

If you want to say that in the animal world , what vitality is the most tenacious, then it is fish eggs . An adult fish can hatch hundreds of eggs at a time. Each of these fish eggs is an independent living body, and after a period of growth and development, it will become a fresh little fish, and the vitality of the fish eggs is extremely tenacious.

In the soil of many deep mountains , there are fish eggs washed by rivers before. These fish eggs have been in a dry environment for a long time, and they are in a dormant state. Once there is enough water to nourish them, they will further hatch, which is why there is a natural emergence of small fry in a pit opened on the mountain.

But this possibility is also very small, not completely absolute . Because fish itself must survive in a water environment . Unless the soil on the mountain is moist enough , it can give them enough dormancy environment. As the saying goes, there is no coincidence without a book, and this kind of accidental phenomenon rarely occurs in nature.

2. Migration and activities of water birds bring vitality

Everyone knows that where there is water, there will be water birds . These birds live around the lake and feed on the fish in the river . Some birds are used to swallowing fish whole, and some fish already have eggs in their stomachs. When the bird excretes , the fish eggs are naturally brought out.

If a group of waterfowls come to the edge of the newly opened fish pond, and these waterfowls happen to eat fish with fish eggs, there will be undigested fish eggs in the feces they excrete. Then these excrement falls into the waters and will be hatched into small fish. Life is born again .

3. The intricate underground waters are the transport channels for fish

Most of the water resources on earth are buried deep in the ground, which we call groundwater . The circulation channels of groundwater can be said to extend in all directions , as densely distributed as human blood vessels. When digging fish ponds, it is easy to dig through these underwater channels.

After the underground water channel is dug , the groundwater will naturally emerge . The small fish in the water were also washed out of the underground waters, and man-made construction made them see the light of day again . This is also one of the biggest reasons why fish appear out of thin air. We always think that the fish that appear is a gift from heaven, but in fact it happens for a reason.