The battle ended in defeat, after which both sides withdrew from the battlefield and returned to their lair. The giant rat-like beast immediately caused a wave of horror to its kind, but when the same kind found out that it was really their companion, they relented and accepted it, and then there was a huge rat-king beast in the rat-like beast.

The black bead that this rat king beast swallowed was actually a pill that floated to Europe with the dust when the space-time temple exploded, it is a kind of inducing large potion, which can increase the size of a small animal several times in a short period of time, which is why the rat king beast suddenly grew up in three days.

After this rat king beast devoured this kind of anti-growth elixir, it has left new genes in its body, it can pass this gene to some of its offspring, but only its offspring, the size of other rat-like beasts will not become larger because of this, from this kind of rat-like population, there is a special species called giant rat gene inheritance, their body size is much taller and stronger than other rat-like beasts, and they begin to reproduce slowly.

Similar to the situation of the rat king beast, in the long history of tens of millions of years of evolution, it has also happened to a few other animals, but not all animals can be lucky enough to swallow the pill of growth, some of which are buried deep in the ground and cannot be found by animals, and some of them are washed into rivers and other water sources, or in the soil near the ground, which is easy for animals to eat, and the number of such potions is not large.

Tens of millions of years later, in North America, another fluffy monster was digging the roots next to an ancient tree, because it loved the delicious taste of the roots.

This monster is a ground sloth with a head that looks a bit like a mouse, it resembles a twenty-first-century sloth, but it is many times larger, reaching six meters in length and weighing four tons, heavier than the large Allosaurus, with gray-black fur wrinkled and shining in the sun, and a whirring pant sound from its mouth.

This ground sloth has long claws and looks comparable to Allosaurus, it is not a carnivore, but a herbivore, so it does not seem to be agile and slow.

When the sloth dug a few feet deep into the ground, it saw a small red bead lying quietly in it, but it did not attract its attention, and then it swallowed the bead along with the roots.

Then the fate of the earth sloth began to change, as it swallowed a Skywalker potion, which was also one of the high-tech items left over from the explosion of the Temporal Temple.

The so-called Skywalker Elixir is just a title, and its function is to modify animal genes and write a warrior gene segment into the animal genes, so that this animal can evolve into a Skywalker with strong fighting ability, that is, a precursor who is much stronger than ordinary animals.

After the genes of this sloth were modified, they slowly began to pass on this precious gene, and within the sloth race, an excellent Skywalker gene was formed that only a few offspring have, and this Skywalker gene can make ordinary earth sloth have extraordinary strength, evolve in continuous exercise and practice, and become a more powerful Skywalker.

In Asia, the ancestor of a wild boar encountered another kind of pill, which is a medicine that can give birth to primary wisdom, and its function is to suddenly produce an effect at a certain historical time, so that a certain offspring of the animal that eats this pill suddenly produces wisdom, so that it can pass on wisdom to its offspring and pass it on from generation to generation, but whether this can make this population evolve a higher level of wisdom depends on the natural environment and the evolution of surrounding animals.

From the early Cenozoic Era, until the end of the glacial period, until about 10,000 years before history, the life on the earth ushered in a new great development, the animal species are more diverse, mammals and birds are numerous, you can see them everywhere, snakes have also become colorful, the terrible poisonous snakes have evolved, and insects have approached modern times.

In Africa, the situation is somewhat different from history, after tens of millions of years of baptism, the land of Africa has gone through several twists and turns, and the nearly extinct Allosaurus population has still derived several populations, of which the large Allosaurus under the leadership of Zhang Jun is only one of them, and their number is not the largest.

Other populations of Allosaurus have changed their physique completely, and they have coexisted with other animals, and are no longer the dominant population in numbers.

The red-eyed Allosaurus family that diverged from Allosaurus has now evolved into an agile horror killer, Red-eyed Tyrannosaurus, in the grasslands and jungles of southern Africa, Red-eyed Tyrannosaurus and lions share the sky, their size is comparable to that of lions, but the agile surname is stronger than lions, good at running and bouncing, with a sharp back on its back, full of fangs, and it is sharper than lions, and the two sides have been competing on the grassland for thousands of years, but they have not been able to distinguish the winner from the loser.

For tens of millions of years, he has also been paying attention to the situation of the red-eyed family, their size has been developing towards miniaturization, which is a necessary requirement to adapt to the environment, and their number has not been much, once several times endangered, and finally because the red-eyed population maintained a part of its wisdom, so it survived, and now they have begun to gradually oppress the powerful lions, and history seems to be slowly rewritten.

Zhang Jun knew very well about the success of the red-eyed population, so he had always wanted his population to continue to reduce the amount of food and then evolve towards miniaturization, but in order to preserve his absolute strength, he still kept his descendants of the dragon group tall and tall.

In the years that followed, Zhang Jun was ready to adopt another approach, that is, to maintain the existence of large Allosaurus populations, and slowly conquer small Allosaurus populations, especially those that have passed on part of the dragon language, will be the objects of Zhang Jun's conquest.

Around 10,000 years before history, Zhang Jun began to do this work, because he knew that this era should be the era of the development of intelligent creatures, and once there was a group of intelligent creatures, their number was large enough to a certain extent, and his dragon group could not continue to maintain the status of the most powerful population.

About 10,000 years before history, the earth is not much different from modern times, the climate and geographical environment are basically the same, and the animal species are more colorful, and most animals are not much different from modern times.

But because of the reproduction of dinosaurs in Africa, it led to the great migration of another kind of animal, that is, the ancestral primates of human beings, who went out of Africa earlier than in history and went to Eurasia with a more comfortable environment, so at this time, more primates have lived on the Eurasian continent.