The creatures that can dominate the dangerous world of the Great Wilderness are usually not small, otherwise they would have been eaten as prey by other creatures and extinct.

As an aquatic beast, the black salamander is almost in a hegemonic position in Yushui.

The reason why it is said "almost" is mainly because there are more ethnic groups than it, and there are not as many people as it is.

It is difficult to have a standard size for the salamander.

Because they are ovoviviparous, they can give birth to billions of larvae in a single reproduction.

During the breeding season, the larvae can even dye the entire surface of the river black!

Fortunately, although the reproductive ability of the black salamander is super strong, the survival rate of the larvae is not high.

Because the hatchlings of the salamander that have just escaped from their mothers are only the size of tadpoles, they are dangerous creatures, and even ordinary fish can feed on them.

The black salamander is not a species that is good at parenting, and whether the offspring can grow up after breeding depends purely on luck, and the adult black salamander does not care.

Not only does it not matter, but the salamander is also a cannibalistic creature, which makes people suspect that they give birth to so many larvae every time, mainly because they are worried that they will not have food to eat in the future.

Although the growth process is rugged, once the larvae grow to a size that cannot be threatened by natural predators, there are almost no growth restrictions.

The only food they can find is the only food that can control their swelling, and the only thing that can control the number of adult black salamanders is the larger ones.

This is also the reason why this aquatic amphibian beast with super fecundity has not flooded in the Great Wilderness.

Therefore, in Yushui, there is no need to be surprised to see the ten-meter-long black salamanders in groups.

Those are just little people who are not very old and have not yet left the group life.

There is such a fierce beast living in the Yushui, and it is estimated that it is impossible to cross the river by swimming, because even a water bird does not dare to fall on the 800-wide river.

If you rely on ships to cross the river, the target is too big, and unless thousands of large ships are gathered to force the river, it will be difficult to cross the river to invade without people's eyes.

Bai Yuqi and they naturally don't have to worry about crossing the river, not to mention the floating fleet of the Xiyun Empire, they who have the Bloody Tai Sui of the Brain Beast's legal division can be directly teleported to their destination.

Yu China is mountainous, or to be precise, Yu China is actually built on Yu Mountain, so it will be called "the country in the Yu Mountain", and the endless "hills" constitute this huge country, so that it is also called "the country of 100,000 mountains".

The mountains of Yu China are not precipitous, looking down from the air like a huge wave that stretches endlessly, a few higher mountains form the crest of the wave, and the lowest thousands of years of towering ancient trees cover the whole land and mountains, so that it looks like a green sea.

In the wilderness where the natural environment is absolutely untouched, such scenery is not uncommon at all, and there are many primeval forests that no one has stepped on for hundreds of millions of years.

Even in a large country with a large population like Yu China, the mountains and forests within its territory are rarely touched by humans, and most of them are entrenched by various animal groups.

Most of China's population is concentrated in the gentle slopes and plains between mountain ranges, and the vast land, abundant water sources, and primitive and undeveloped mountain forest animal and plant resources are enough to feed an incomparably large population.

The land area of the country is not large, only about 3 billion square kilometers, which is only six of the total land area of the earth.

The Chaoyun Corner and Chaoyun Mountains in Chaoyun Country together are only more than one billion square kilometers, which is only a quarter of the size of the Yuxi Prairie where Si Yu Country is located.

However, the land of the three kingdoms of Biye, Chaoyun and Siyi, plus the area of the two uninhabited areas of Heishui Bay and Liudesert, is only the same as that of Yu China.

Therefore, although it has not been accurately measured, the territory of Yu China is conservatively estimated to be more than 15 billion square kilometers, which is only 30 times the total land area of the earth.

To tell a joke: the total land area of the earth is actually a unit of area.

In this way, the number of billions of people in the Great Wilderness is indeed "vast and sparsely populated" in such a vast space.

According to the rough statistics of the Tianyan system, the population size of Yu China is more than 12 billion, but the territorial development area is less than 15%, so it stands to reason that there is no reason to invade neighboring countries.

However, they showed a strong aggression and eagerly tried to cross the Yushui and step into the western Yuxi prairie, which was inevitably a little puzzling.

After Bai Yuqi led the dragon descendant disciples to take a transport ship and entered the territory of Yu China, he did not rush to the "Crisp Stone Mountain" where the Meteorite Sect was located.

Instead, the spore detectors of the Tianyan system were mobilized along the way, and the entire territory was carefully scanned to establish a real-life map, so as to prepare for the subsequent war after crossing Yushui.

At the same time, he also tried to find the reason why Yu China left its vast territory and did not develop it, so it had to run to grab the land of neighboring countries.

At first, Bai Yuqi suspected that Yu China was oppressed by the inland powers of Nanwan, and had to move west to avoid trouble.

Otherwise, it is not a simple matter to migrate all the 12 billion people scattered in an area of 15 billion square kilometers to the western grassland west of Yushui...... To be precise, with the traffic environment of the Great Wilderness, this is almost an impossible thing to accomplish.

But through the feedback of the Tianyan network, there is no so-called inland power in the east of Yu China attacking them.

On the contrary, the major powers on the entire Nanwan Raft have fallen into a strange and chaotic situation, and they have no time to take care of themselves, how can they still have the strength to invade other countries?

The same is true of Yu China, which may seem as if civil strife has caused their domestic disintegration, but strangely there is no large-scale internal war within their borders.

Although it can be clearly seen that Yu China has split into dozens of large forces, the contradictions between these forces are not fierce, mainly for some friction over resources, but in general they always uphold the same purpose, that is, to move westward.

In order to achieve this goal, the various forces can even put aside their contradictions and cooperate together, such as gathering combat forces to invade the Yuxi grassland.

In this strange situation, Bai Yuqi was very dumbfounded, is she sick?

In the absence of a large-scale natural disaster cleanup, Mao has to pay such a huge price to move west?

Just because you are tired of living in the mountains, so you want to move to the prairie to live?

The main reason why Yu China has not freed up all their forces to attack the three northwestern countries is that their main forces have remained in the east, as if there is something terrible there to resist.