The old man smiled lightly, took out a dry green plant, then gently crushed it in his hand, raised his hand, and placed it in front of the eyes of the three of them.

This thing is very broken, like powder.

"Mud??"

"sand?"

Pangolin and Xia Wei guessed.

"It's fish eggs, right?" Han Sanqian asked.

"Fish eggs?"

Upon hearing this, Xia Wei and the pangolin were surprised almost at the same time, and opened their eyes wide to see the powder in the old man's hand.

It is as fine as sand, and the particles are extremely small. It is extremely reluctant to say sand, let alone associate it with fish eggs.

The moonlight ghost fish is so big, how can the eggs be so small? And even if it is a very small fish species, the eggs laid are by no means so ridiculous.

"you are right."

But at this moment, the old man looked at Han Sanqian and nodded with a smile, which seemed to agree with Han Sanqian's statement.

The two were shocked and exclaimed, "Is this really a fish egg?"

The old man nodded, and Xia Wei and the pangolin suddenly looked at Han Sanqian strangely. They really didn't understand how Han Sanqian connected these things to Yudan.

Han Sanqian smiled. Obviously, this is indeed a guess, but it is also a well-founded guess.

The old man said that there are only two kinds of creatures in this extremely snowy land, one is the blood worm, and the other is the moonlight ghost fish. The extra plants are very suspicious.

Secondly, if a place is closed, like this land of extreme snow, if it lasts for a long time, then it must have its corresponding ecosystem.

This is the key to the formation of a region.

"If my guess is correct, these fish eggs are also food for those bloodworms, right?" Han Sanqian said.

The old man smiled and nodded again: "Mr. Han is smart in front, indeed."

Han Sanqian smiled: "That's right."

Moonlight ghostfish feed mainly on bloodworms, so the old man can use bloodworms to catch moonlight ghostfish.

But what do bloodworms survive on? In this extremely snowy land, only the moonlight ghost fish is the only creature left.

This reminded Han Sanqian of the former Snake Island above the earth.

Almost every inch of Snake Island is full of snakes, except for snakes, almost nothing can grow. There are only simple seabirds that occasionally skip the island and stop temporarily, but this does not provide enough food for the gradually expanding snake group.

However, the snake can still survive and expand, the reason is because there is another creature on the island, that is the mouse.

The natural enemy of rats is snakes, which are also the food of snakes, which provides the necessary energy for the growth of snakes.

However, even so, the rats on the island have not been extinct because of this, and even the number has continued to gradually expand.

The reason is that although snakes feed on rats, rats will also use snakes as food while snakes are hibernating. The two rely on this to form an ecological chain to keep the island prosperous.

Isn't this land of extreme snow just like the Snake Island? JrNovels.com