I was a village chief in a primitive society

Chapter 393: The Law of Migration. (1 more please customize)

"pitter patter......"

The rain was still falling, and Da Gua, Frog Ming, Yan Hua and Sha Lan were left to look after the river.

Every once in a while, someone will come to exchange positions to make sure those river bears are still peaceful.

"Wow!......"

The water in the river was very fast, and with the rain getting heavier and heavier in the sky, the river that could not be seen to the edge became ferocious to the naked eye.

The reason why the tribe is not close to the river is because every time it rains, the river will rise higher.

The totem warriors who were fishing by the river have all evacuated. They will not go fishing near the river again before the end of the rainy season.

Yanhua thought that Wu might not know much about what would happen during the rainy season, so she specially told Wu about what happened in previous years.

Originally Yanjiao wanted Wu to go back directly, but Su Bai wanted to stay and have a look.

He also wanted to arrange some things, otherwise this river bear would really be in great trouble for the tribe.

When the rain outside subsided, Yanhua took Su Bai for a walk near the river.

Although it is not difficult to have totem warriors guarding this place, you still have to be careful.

"Does it cost a lot of soldiers to drive out these ferocious beasts every year?"Su Bai asked.

He just heard what Niujiao Niang said, that every year, many warriors die trying to drive away river bears.

And there are not just one or two, but tens of them are lost every rainy season. Come on, this number can be a huge number for the Yanlong Tribe.

"Yes, but depending on the situation this year, I probably won’t need it."Yanhua's sad mood improved slightly.

"Do these river bears appear in groups?"Su Bai asked curiously

, because he often saw river bears jumping up on the river and then throwing themselves into the bottom of the river. This book seems to be very ordinary, and there are a lot of them.

"Yes, many of them appear together, but each takes care of his or her own business."Yanhua said.

This is also a fortunate point for the Yanlong tribe. It would be too bad if the other party worked in groups. It is already difficult for a single river bear to fight against each other. If several river bears If they are together, they will not be able to resist at all.

If groups of river bears land together, Yanjiao will lead the tribe members to escape. Instead of stubbornly resisting, it is better to be smart and escape directly.

"......"Su Bai nodded thoughtfully and continued to look in the direction of the river.

He saw one thing that was different, that was, apart from wanting to go ashore, the rest of the river bears swam towards one place.

If a few river bears come ashore out of curiosity, or want to go ashore in search of food.

What about the rest? What are they going to do? They all swam in one direction.

Even if they jump up and then fall in the same direction, they are all facing the same direction. If there are only one or two, it can be said to be accidental.

But that's not the case. Almost all river bears are facing in the same direction, and only a few of them want to go ashore.

"Wu, what are you looking at? Yanhua asked curiously, seeing that Wu kept looking in the direction of the river with a very strange expression.

"Do you know where they are going?"Su Bai pointed in the direction of the river and asked. This question was really strange.

Yanhua looked in the direction pointed by his finger and asked,"Are those river bears that Wu is talking about? We don't know either."

The direction the river bears go every year is of no concern to the tribesmen. As long as they don't come ashore, it's better than anything else. If they don't come ashore, there's no need to deal with them. Since they don't come ashore, who wants to care about where they go?" where to go

"It happens only once a year, and most of them are moving in the same direction......."Su Bai fell into thinking

"Wu, what's wrong? Did you think of something? Sha Lan asked curiously.

Su Bai frowned for a while and asked,"Are they going upstream or downstream of the river?""

If it can be determined that the direction they go to is the upstream and downstream sides, it can be explained very well.

"Upstream or downstream? Sha Lan was stunned, shook his head and said:"I don't know about this, we have never been there.""

The river is really too long. No one in the tribe has ever been to such a far place, so they don't know where the upstream and downstream are.

Su Bai nodded thoughtfully, thought for a moment and said,"This river is already very long. It's big, and it's still fresh water. If they all move in the same direction, does that mean......"

"What does it represent?"Sha Lan looked curious.

"Although this big river is very wide, the water in the river is fresh water. They will move in the same direction, which means they are moving towards the sea." Su Bai guessed.

This big river is obviously the river that enters the sea, and the direction of the river bears' progress is generally downstream.

When the rainy season comes, many fish and beasts want to go to the sea to breed, find food or spend the winter, because The heavy ice and snow will come not long after the rainy season.

The periodic directional back-and-forth swimming caused by these factors is also called migration, which is the law of nature.

So most of these river bears are moving in one direction, right? Does it mean they have this law?

But Su Bai is not sure. This is just his guess. No one knows whether the direction those river bears are heading towards is the sea.

"Wu, what is the sea?"Yanhua looked confused.

She didn't know how to look at the upstream and downstream, because the upstream and downstream are not determined by the direction of the river flow.

If it is close to the origin, it is upstream. If it is far away from the origin, it is downstream, and it is close. The sea.

It's impossible to tell the difference based on just such a section of the river. The only function of water flow is to find the source.

"It's a larger place with water, but the water there is salty."Su Bai explained.

However, the direction in which these river bears are heading is also of great help. If it is determined that the direction they are heading to is downstream.

And if they are heading to the sea, then everything will be easier to handle, although it is not necessary to drive the river bears away. It’s a bear’s method, but it can also help the tribe.

"Salty? Is that the same as salt?"Yanhua asked curiously

"Well, in the future we can produce salt ourselves, so we don’t have to rely on other tribes."Su Bai nodded.

If it is really the sea, then shipbuilding must be put on the agenda quickly, so that we can produce salt by ourselves.

"Wu, why do you suddenly ask about upstream and downstream? Yanhua asked curiously

"Because the tribe can have more food."Su Bai said with a slight smile.

Yanhua blinked her red eyes and asked doubtfully:"Is more food because of the sea?".........................................

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