Reborn as a tiger cub, I'm too weak, so I can only rely on self-discipline.

Chapter 542 The Strange Gravity

200 days after birth.

It's been a week since I returned to China.

During this time, Cangnian had Noah control the ark, sailing upstream along the Yellow River towards the interior of the Dragon Kingdom.

Logically speaking, marine organisms should have a higher average evolutionary level.

Moreover, marine organisms are much larger than those on land.

However, Ao Han originally lived in the Yellow River estuary area. Like Ao Tian, ​​he completed the accumulation of the fourth-order to fifth-order evolution during the second spiritual energy revival tide, fell into slumber, and evolved into the fifth order.

It wasn't until more than ten days after the second spiritual energy revival tide that Cangnian, at Aotian's invitation, agreed to explore the Dragon Palace, causing the Dragon Gate to appear, which led to the later leap over the Dragon Gate.

Therefore, after Ao Han became a fifth-order evolved creature, it occupied the mouth of the Yellow River for half a month, and all the relatively powerful fourth-order evolved creatures in the vicinity had already entered its belly.

As for the fifth tier, Ao Han only knew about the giant crocodile.

At that time, it had not yet transformed into a dragon, but its evolution speed far exceeded that of other evolved creatures in its activity range, and it was the first to evolve to the fifth rank.

So, although it was powerful at that time, it lacked the confidence of a dragon to hunt that giant crocodile.

It even worried that the giant crocodile might swim downstream from upstream into its territory and hunt it.

Of course, at that time it had no idea that the creature upstream was a giant crocodile. It only made a guess because the seawater flowing downstream often carried the bloody smell of a fourth-order evolved creature.

However, it is precisely because of the unknown that it dares not take risks.

The fifth-tier giant crocodile upstream was unaware of Ao Han's existence; otherwise, given its audacity, it would have surely invaded Ao Han's territory and killed him.

Given the abilities of a fifth-tier giant crocodile, Ao Han's strength before transforming into a dragon might not have been enough to survive.

What puzzled Cang Nian was that crocodiles are amphibians and reptiles, and from a biological point of view, they are not very closely related to dinosaurs.

So, logically speaking, this thing should also be considered to have dragon blood, right?

Who says dinosaurs weren't dragons?

In Western mythology, winged lizards can even transform into dragons!

However, Ao Han's territory is only a little over a hundred kilometers away from the other party's territory, and the other party was not attracted by the Dragon Gate, so it is probably true that they do not have the bloodline of the dragon race.

Therefore, not everyone who appears to have dragon-like features is a descendant of the dragon race after its branches have spread.

However, it's also possible that the fifth-tier giant crocodile's territory was very vast, so when it was killed by Cangnian, it just happened to be at the edge of its territory closest to the mouth of the Yellow River.

After all, Nile crocodiles have long lived in freshwater and dominated long stretches of rivers, leaving only a small section at the mouth of the Yellow River, which is in line with their own species' preferences.

Given the appetite of a fifth-tier giant crocodile, and considering that it seems to completely disregard its fifth-tier inherent ability of concealing its sharpness to conserve energy, it is estimated that a large portion of the evolved creatures in the region have been decimated.

Similarly, Ao Han is the same; he's too lazy to use his hidden sharpness.

According to its simple idea, evolving to the fifth level is to climb to the top of the food chain, so that it can not be eaten by other creatures at will, but instead eat other evolved creatures.

Having evolved to the fifth tier, why bother with concealing one's brilliance and reducing energy consumption...?

Then it evolved to the fifth tier for nothing.

Therefore, before meeting Cang Nian, Ao Han had never concealed his sharpness.

It's estimated that the fifth-tier giant crocodile had the same idea as Ao Han.

Two fifth-tier evolved creatures were entrenched, too lazy to use their concealed power to reduce energy consumption.

This places a very heavy burden on the food resources of a region.

Therefore, Cangnian decided to let Noah pilot the ark upstream along the Yellow River to the depths of the Dragon Kingdom's interior.

On the one hand, after the second spiritual energy revival tide, the Earth's surface area increased significantly.

Based on the sea area where the Northeast Allied Army of the Dragon Kingdom was forced to stop, and the distance between it and the Dragon Kingdom before and after, the distance between any two points on Earth is roughly thirty times greater.

Of course, this is just a rough calculation.

After all, no one knows whether these newly added areas are evenly interspersed on the original Earth's surface.

Therefore, this 30-fold figure is only a temporary estimate. A definitive conclusion can only be drawn after we have a comprehensive understanding of the Earth as it is now.

However, there was one thing that puzzled both Cangnian and Yichen.

That's a matter of gravity.

Anyone who has received nine years of compulsory education knows a simple physical law: the greater the mass, the greater the gravitational force.

The Earth has grown from its original size to its current volume, so its mass must have changed accordingly.

But in theory, such a dramatic change should have prevented any life from surviving on the entire Earth's surface.

Furthermore, after the dramatic changes, Earth's gravity should increase accordingly.

But none of these things happened.

A planet the size of a ping-pong ball expanded to the size of a coconut. Instead of being crushed and causing the extinction of all species, it gained even more surface area, filling the gaps in its surface.

At the same time, it has not yet exerted the terrifying gravity that its mass should provide on the objects on its surface.

This almost overturns the physical laws that existed before the spiritual revival.

However, just when Cangnian had no ideas, Noah made a bold guess.

The physical law that the greater the mass, the greater the gravitational force has not been broken.

However, it is human intervention that has kept Earth's gravity at the level it was before it expanded.

The human intervention here is not human beings in the narrow sense, but ancient and powerful intelligent life.

For example, the Azure Dragon of the Dragon Clan.

Noah speculated that this force of intervention was quite likely an array!

Even with a formation covering the entire Earth causing its spiritual energy to revitalize and its volume to expand rapidly, the Earth's gravity will not return to its proper level.

This guess is bold, but after careful consideration, Cang Nian realized that it really seems to be the only explanation.

And following this possibility, several things are naturally explained.

First, those ancient powerful beings foresaw the end of the Dharma era on Earth and the current spiritual energy revival, and made preparations in advance.

Secondly, the ancient powerful beings who built this great array that covers the Earth should have had a friendly attitude towards their descendants on Earth; otherwise, there would have been no need for them to do such a thing.

Third, those powerful beings who granted protection to their descendants on Earth must have hoped that Earth would produce a group of strong individuals to resist external enemies during this spiritual revival.

As for who the external enemy is, Cang Nian has no idea, but without a doubt, it should be beings from outside Earth.