Judging from the response given by the system, this increasingly powerful population is not recorded in the history of Xuanhuang.

But their power is already the king of this region, and wherever they go, the other species have only two choices, one is to abandon their territory and wander, or the other is to hit the stone with an egg and bring about their own destruction.

The monoliths of this population are somewhat odd, they have lizard-like heads, but they have the body of a canine, with small, dense scales on the upper body, very small nose and ear cavities, and a hairy lower body with sharp claws.

Since the observation system given by Dao Ancestor did not indicate what the name of this species was, Lao Fang had to reluctantly call it "Lizard Dog" for the time being.

To the surprise of the old man, this lizard dog with a half-body structure like a mammal is actually an oviparous animal.

Adult female lizard dogs have a fertile period of seven or eight years, and can basically lay a litter of eggs every year.

After the egg falls off from the mother's body, it must be hatched for more than ten days before it has a 60% chance of breaking out of the shell and becoming a lizard dog puppy.

Lizard dogs are very fragile in the young animal stage, and when the population is not very strong, they often become food for birds and rodents.

After three to five years, the lizard dog cubs can grow to a length of one meter seven or eight, at this time, their physical strength is at its peak, and the short sprint can reach twenty meters per second, and the power of the burst is very amazing.

The lifespan of the lizard dog is between eighteen and twenty-five, and in the animal kingdom, it belongs to a relatively long-lived family, and the Xuanhuang people of this era can live to be fifty years old.

In the beginning, lizard dogs struggled to survive in a tributary of the Suyu River, their adult monomers were not prominent in nature, and there were many surrounding species (animals with a body length of no more than ten zhang) who were above them, and many times they were just prey.

Although the lizard dog is very capable of life, it can't stand the rampant rodents, and there is a kind of raccoon-like animal, which is more cunning than the foxes on the earth, they are all masters of stealing eggs, and for a long time, the lizard dog was suppressed alive in a certain number range.

Until a certain year, in the lower reaches of the Suyu River, a rodent-loving feline settled here.

This creates a good opportunity for the lizard dog to rise.

More than 60% of the eggs have successfully hatched lizard dog pups, and although the young animals have the nemesis of birds, more than 70% of the young animals can still survive to adulthood.

The number continued to grow, and in a few years it doubled, and later, even giant hunters with a length of seven or eight meters did not dare to provoke the hordes of lizard dogs.

Today's lizard dogs have surpassed the total number of several species around them that are strongly competing for the hegemony of the middle and lower reaches of the Suyu River, of course, including the Xuanhuang people and the ancient wolf clan.

After the lizard dog has a numerical advantage, it begins to expand around, this expansion seems to be an unjust behavior, but in fact it is also a behavior that has no way, the resources of each region are limited, when food, water, space and other things can not feed a large number of populations, they can only rely on expansion to achieve, as for whether it violates the interests of others, this is not something to consider at all.

In this era, there are only two words, and that is "survival".

I don't want to live well, but I want to live.

After a period of blind expansion, the lizard dog finally set its sights on its once strong neighbor, the monkey-faced leopard (another species without a name, and the old party took the name on its behalf).

This species is four meters long, with sharp claws and sharp teeth, given that their claws are like eagle claws, the old party once wanted to name it Eagle Claw Leopard, but in the end he still felt that the monkey face was more prominent, and he could think of their general appearance from the name, so he gave up the name "Eagle Claw Leopard", because it sounded like describing a certain leopard, practiced Eagle Claw Gong, and did not match the name of the population at all.

If it goes head-to-head, the Lizard Dog is no match for the monkey-faced leopard at all, and even if it is three against one, the lizard dog may still need to lose two lives to barely win the monkey-faced leopard.

But now the number of lizard dogs is more than ten times that of monkey-faced leopards, and quantitative changes affect qualitative changes, so when the lizard dog army overwhelmed the territory, the monkey-faced leopards did not hesitate to give up their territory, and after leaving a broken team, the entire group moved east to a certain mountain two hundred miles away.

In this day and age, running away is not a shameful thing, survival is the most important thing.

Besides, even if you do something shameless, you don't have to worry about it going down in history.

Everything that the old party saw was just that Dao Ancestor forcibly added a lot of elements according to some clues, and then according to the calculation formula, the system evolved the data and generated.

This is true for lizard dogs, and the same is true for monkey-faced leopards.

As for why the monkey-faced leopard chose to escape, it is very likely that the system came to the conclusion after analyzing some data of this population, after all, the monkey-faced leopard has been dealing with lizard dogs for a long time, and the number of lizard dogs is still in mind.

The lizard dogs that had acquired the monkey-faced leopard's territory were not satisfied, and they set their sights on the old rival of the Xuanhuang people, the ancient wolf.

Although the ancient wolves were once defeated by the Xuanhuang people, they were not eliminated by the natural world, they only moved a place to live slightly, and then survived again.

Over the course of 10,000 years, countless times of rise and fall, and eventually, the number of ancient wolves was balanced between 100,000 and 200,000 by several surrounding populations.

At present, their number is 150,000, which is still four times that of the Xuanhuang people, but compared to the number of lizard dogs that have already exceeded 800,000, this number is not enough.

Compared to 10,000 years ago, ancient wolves have also undergone a lot of changes in their survival, and their genes are constantly adjusting to make them more adaptable to this world.

Their body length has grown by more than 50 centimeters compared to 10,000 years ago, their limbs are thicker, and their recipes have added a lot of vegetarian food, such as bamboo shoots, the roots and fruits of certain plants......

The expansion of the recipe makes them more adaptable to the environment.

At the same time, their intelligence seems to have improved, after all, their old neighbors are Xuanhuang people, and they have to have a few more eyes to deal with them.

They can distinguish the traps made by the Xuanhuang people, many traps that are not made carefully, and they can see through them at a glance, those digging pits, and the vines may be able to fool other animals, but they can't escape their vicious eyes.

But they have learned the lessons of previous fiascos very well, and they never easily provoke the Xuanhuang people, unless they are in a hurry.

The invasion of the lizard dogs annoyed the ancient wolf clan, but they did not know that the number of lizard dogs had exceeded them several times, so they chose to resist blatantly.

The ancient wolf, the elite of the lizard dog met in a vast meadow, at this time it was the height of summer, the grass and trees were growing wildly, and the ancient wolf and the lizard dog were submerged in the grass of one meter six or seven.

A few high-pitched wolf howls, the ancient wolf decisively attacked.

The lizard dog also spits out its long, forked tongue, and stepped out of its four legs, silently heading towards the ancient wolf.

Just as the two armies were about to make contact, the ancient wolf turned in the direction and rushed towards the territory of the Xuanhuang people.

"Beautiful!" Lao Fang was very amazed by the trick of the ancient wolf, the acting skills of this group of guys exploded, they successfully deceived Lao Fang, and also deceived the lizard dogs and Xuanhuang people whose IQ was more than a dozen levels lower than that of Lao Fang.

The Xuanhuang people had already arranged spies in this area at this time, and when several Xuanhuang people were probing their brains on the mountain, they suddenly found that two armies were rushing towards their territory together.

"Fire!" A Xuanhuang man immediately took out the fire and wanted to set fire to the grass.

But now the grass in this season, the moisture contained in it is the most abundant time of the year, and it is not so easy to ignite.

After a hurried operation, he didn't light the grass in front of him, so he could only go back to report with regret.

Soon, the two armies entered the territory of the Xuanhuang people, one after the other.

The ancient wolves were very familiar with the terrain, and they also knew the layout of the Xuanhuang people, and they chose an extremely dangerous canyon, which was the throat to enter the territory of the Xuanhuang people.

The ancient wolves knew that this place must be heavily guarded by the Xuanhuang people, but they still rushed towards this canyon without hesitation.

The old man was a little confused, and he couldn't understand what the ancient wolf was thinking for a while.

As the ancient wolf expected, in this canyon that is about thirty miles long, there are indeed five thousand Xuanhuang people, and they are shouldering the heavy responsibility of guarding this important road.

They dug many burrows in the rock walls for dwelling, picked fruits, hunted rodents to fill their stomachs, and of course, their more food source was to "collect tolls" for each group of animals that would pass through the canyon.

When the spies brought back the news, the group of Xuanhuang people immediately mobilized, they took out the short spears they usually made, picked up the stone tools that they used their spare time to sharpen, and ambushed them in the narrowest part of the canyon.

A small group of Xuanhuang people with a special mission are carefully rolling the collected large stones to the edge of the cliff, and as soon as the war begins, they will roll the big stones into the canyon.

Others piled bundles of dried branches on both sides of the canyon.

The ancient wolves had rushed into the canyon, and their speed had not slowed down, but their position had changed.

The old man shook his head and smiled bitterly, it seems that these ancient wolves are very familiar with the traps in the canyon.

The ancient wolves were as fierce as tigers, playing snakeskin in the hundred-foot-wide canyon, and at the same time, they let out a strange long roar.

Lao Fang naturally didn't know the meaning of this long howl, but the Xuanhuang people seemed to understand.

The lizard dog clenched its opponent, and in order to make the lizard dog more active, the ancient wolf had sacrificed a lot of actors, forming an illusion that the opponent was fleeing in the lizard dog's consciousness.

They poured into the canyon like a tidal wave and continued to chase the ancient wolves.

The traps dug by the Xuanhuang people could not stop them at all, and they had no intention of draining any traps, and more than a dozen lizard dogs could fill a large pit, and the troops behind them stepped on their corpses as if they were on the ground.

The canyon is getting narrower and narrower, and when entering the canyon for six or seven miles, the canyon road surface of more than 100 zhang has shrunk to more than 20 zhang.

The trap is getting denser and denser, and many times, the ancient wolves have to use their lives to fill the pit in order to buy time.

These pits are not small, they are covered up with rattan, and they are also full of sharpened wooden stakes, and ordinary animals will become hedgehogs when they fall.

But in the face of this tidal wave of beasts, the role of the trap is only to consume some of the enemy's unlucky eggs.