Still alive 200 million years ago

There were too many Skerero dragons coming this time, hundreds of them, while there were only fifteen little red dragons. The gap was too huge.

Xu Dong howled, and the little red dragons got back into the cave one after another, waiting for Xu Dong's next order.

Screro dragons are very vengeful animals, and they like to stick together. The previous small group of screro dragons was bullied, and a large army immediately came to find trouble.

The one at the forefront of the Skerosaurus is a 23-centimeter super large Skerosaurus. He is the leader of a large group of people deep in the forest. After knowing that his brothers at the seaside were being bullied, he left some members of the tribe to protect their offspring. They all called over to take revenge.

When they arrived, all the little red dragons had already gone into the hole in the ground. Naturally, Skererosaurus would not give up. It was about the same size as the little red dragon, and they could also get into the cave dug by the little red dragon.

However, the cave is a narrow terrain that only allows one dragon to pass through. Basically, one will be killed by the little red dragon in the cave.

The final result was that the Skerosaurus kept killing people, and other than blocking the cave, it achieved no results at all.

Leader Skerero was not a fool. He knew that this was completely ineffective, so he changed his tactics and adopted a squatting method, guarding the entrance of the cave and not leaving.

This method is really good. When dealing with the little red dragon, a villain who robs the ecological niche, the Screro dragons will naturally not be merciful.

Take advantage of the fact that the number of little red dragons is now small, and quickly eliminate them. If you save, they will be killed by the little red dragons in turn.

The competition for ecological niches in the same plot of land has always been endless, exclusive and diffuse.

Exclusivity means that living things will not play with you about peaceful coexistence and non-aggression. That is something that humans only do on the surface.

The seemingly peaceful nature and various creatures living in harmony are because they each occupy different ecological niches and the ecological niches do not overlap with each other. This is the basic condition for harmonious coexistence.

For example, both herbivores, Kenshin and Therizinosaurus, can coexist peacefully, because one eats plants on the ground and the other eats plants on trees, and they are also in different ecological niches.

However, Ken's beasts and lizards cannot coexist in the same area. Ken's beasts cannot compete with the lizards, so they either have to evolve long necks to eat the leaves that the upper-level lizards cannot eat, or they can only continue to grow like in history. It expanded its body size, expanded its stomach to accommodate more food, and eventually went extinct.

The two major killer weapons in nature are natural disasters and ecosystems. Natural disasters are violent means, basically harvesting one wave at a time. Ecosystems are even more terrifying. They are like boiling frogs in warm water. Either they don't harvest, or if they do, the entire race will be harvested together.

Creatures in nature may not understand what an ecological niche is or what an ecosystem is, but everything they do is practicing the rules of the ecosystem.

Screrosaurus settled down in this cedar forest, leaving a dozen of them every day to guard the caves of the little red dragons, while the others went up the trees to hunt for insects.

Days passed by. At the beginning, there were many corpses of Skererosaurus, so there was no need to worry about starvation. However, one day the corpses would eventually be eaten, and then all the little red dragons nesting in the cave would starve to death.

It's not that Xu Dong never thought of digging a hole to leave, but this area is close to the ocean, and the soil is mixed with stones, which is very difficult to dig. Moreover, it can't order the little red dragons in other caves to dig at the same time and in the same direction.

After being trapped in the cave for five days, Xu Dong couldn't help it anymore. Being trapped here would lead to death sooner or later. He could no longer sit still and wait for death. He had to fight back.

According to Xu Dong's observation, whenever Skelerosaurus goes out to hunt, only a dozen or so are left to guard the cave. Although the large army is not far away, it is still an opportunity to counterattack.

When the Screros went out to hunt again that day, there were sixteen Screros left to guard, ten on the ground and six in the trees.

Only three of the ten on the ground were walking around the cave, and the remaining seven were resting on piles of dead leaves. Of the six on the tree, only one was staring at the Little Red Dragon Cave.

At this moment, Xu Dong gave an order, and all fifteen little red dragons were dispatched, catching the Screro dragon by surprise.

The three closest Skerero dragons were directly chopped to death by random claws. The Skerero dragon on the tree shouted loudly to the tribesmen in the distance.

The seven Skerosaurus lying on the ground quickly tried to get up and fight, but were knocked down by the little red dragons and stabbed to death in a pile of dead leaves.

Six of them jumped down from the branches. Filtered by the sharp claws of Xu Dong and Long Jiu, only three landed safely, while the other three were turned into corpses.

At this time, the battle on the ground has been resolved. Fifteen little red dragons surrounded three Skerosaurus in the center, and they died after a violent beating.

While the large army of Skerosaurus was hunting, the little red dragons successfully hunted sixteen Skerosaurus and dragged them back to the cave to store food.

When the leader of the Skerero dragon hurried back with the remaining tribesmen, there were only some pieces of meat and a blood stain left on the ground. The blood stain extended to the entrance of the cave of the little red dragons, who had obviously been dragged down.

The Screro dragons raised their heads and howled angrily, and each of them burrowed into the hole with red eyes.

The result is obvious, it is just increasing food reserves for the little red dragons.

This wave of delivery was more than the first delivery, and it stopped after blocking the caves of the little red dragons.

When the violence and anger passed and the Skerero dragon regained its senses, it discovered that it had received nothing but a dozen more of its kind, and not even a single scale of the little red dragon had been harmed.

After two attacks and three defeats, if you could see the favorability bar at this time, the hatred of the Skerosaurus towards the little red dragon would already be blood red.

Although prehistoric creatures assessed the situation, it was under pressure to survive.

Today's arboreal creatures theoretically do not have predators. Whether it is Therizinosaurus or Cone's lizard, everyone eats leaves or bugs, and they will not provoke Skererosaurus at all.

As for the dinosaur ancestors and pseudocrocodiles on the ground, they can't even climb trees. How to catch them?

Therefore, Screrosaurus has the capital and strength to stay here.

Their vengeful character prevents them from giving up their attack on the little red dragons easily, and the ecosystem in the dark will add fuel to the flames, promoting a war between the old and the new until one side is completely defeated.

But now, Sklerosaurus is still hiding in the tree. The smell of blood has successfully attracted some medium-sized predators, such as the 70-centimeter bird-necked archosaur Garneres, which are in the form of pterosaurs. The early branches are simply the seven aunts and eight aunts of pterosaurs.

Also difficult to define are jumping dragons. They are like hyenas on the grassland. They specialize in eating the remains of large creatures and small animals. Their classification is still unclear. In short, they also belong to the archosaurs.

The rabbit lizard is a type of small reptile that lived during the Carnian period of the Triassic. Their feet have unique soles and the fourth toe is particularly long. Their length is estimated to be about 0.7 meters. They are close relatives of the rabbit lizard.

Sauriformes - Archosaurs - Ornithopods - Pterosaur morphotypes - Legosauridae - Lesaurus genus