"If only there were scissors." Zhang Jun saw this bunch of nasty spikes, and suddenly remembered the scientific and technological civilization of later generations, if in that era, he could get them in minutes, and he could see them cut with scissors.

Zhang Jun stepped forward and tried to pluck the spikes with his claws, but found that these thorns were very hard, much harder than ordinary wood, and it took a lot of effort to break them.

Those rattans are also very hard, more difficult to break than spikes, Zhang Jun thought for a while, and felt that there was nothing good that could help, the only thing that could be used was his own teeth and claws of the same kind, but Zhang Jun didn't want to be injured by Allosaurus among the dragons.

Zhang Jun also thought about using a natural force to solve the problem, that is, to use fire to burn the plants here and open the passage, but he observed the direction of the wind, the wind was blowing from the direction of the island to the land, so if the fire was used to burn this kind of thorny vines that were circling around, it might not have a good effect.

Moreover, it is very difficult to make fire, he knows the truth of drilling wood to make fire, but it seems to be very laborious, his hands and claws are not as flexible as the ancient ape, and it is not easier for him to take a small stick and rub the drill wood back and forth to make fire.

In addition, this is the seaside, the climate is humid, and there are no dead branches or dead leaves on the ground, so it may be even more difficult to start a fire.

In order to produce an effect as soon as possible, Zhang Jun had to use another method, which was to smash the spikes with stones, which seemed to be the most reasonable. After deciding on this, he began to retreat and wander around the mountains on land, and finally found a few suitable stones.

Zhang Jun tried to use his claws to push the stones forward, these stones were of different sizes, the small ones were half a meter long and wide, and the large ones were more than a meter in diameter, and only their weight could break the spikes.

Zhang Jun began to teach the dragons to push stones, he usually did these strange movements, some of the more intelligent dragons in the dragons, and occasionally imitated the movements of the leader, but they were only interested, with their papaya heads, they would not think of using tools at all, that would only make them annoyed.

The bald head is smarter than other Allosaurus, it immediately began to follow Zhang Jun, with its claws to pluck a half-meter-long almost round stone, and began to push forward, it didn't know what the leader wanted the stone to do, but just wanted to imitate the leader's appearance to do things, its imitation of Zhang Jun's movements only came from a state of worship of the mood.

Big Al and Little Al soon came over to help, their exemplary ability is not as good as bald, and they are also fiddling around, and the rest of the dinosaurs began to imitate its movements under Zhang Jun's coercion, but few can only do it well, and some don't know how to start at all, only to hear Zhang Jun scolding them not far away for pig-headed pig brains, not using them, and standing still stupidly.

Zhang Jun found that there were only three Allosaurus that could really imitate its movements, that is, bald, and a young female dragon, and there was also a large male dragon who would also do this action, and the other Allosaurus were all stupidly watching them push the stone forward, completely unaware of what they were doing, and they were not too interested in imitating it.

Zhang Jun thought to himself, it was really very difficult to teach them to do this action now, and he didn't want to waste time, so he had to work with the three clever Allosaurus to push the four stones to the entrance of Changlong Mountain, and set up a formation, ready to use the stones to crush the thorn vines.

Zhang Jun knows how difficult it is for the dragon group to learn this action, this is because he has done a lot of similar actions before, so that some Allosaurus have imitated it, so that today's results will be achieved, but fortunately, the performance of several Allosaurus also made him quite pleased.

Looking at the bald head on the side imitating his movements decently, as if he was pushing the stone very seriously, Zhang Jun suddenly thought of a question, that is, whether he could slowly learn the way the dragons used hand tools, so as to promote their brains to produce higher intelligence, so that the dragons would become more and more intelligent.

But then he thought that his lifespan was only twenty or thirty years, and when he died, these Allosaurus would definitely forget the methods he taught them, and they would not teach them to their offspring at all, and there would be no way to talk about evolution.

Unless Zhang Jun can survive forever, then it is possible for him to slowly pass on the skills he has mastered to the descendants of Allosaurus, so that they will evolve from generation to generation, and finally achieve the effect of producing advanced wisdom.

"At that time, in the arena of the Olympic Games, there will be an Allosaurus wearing only shorts, what kind of scene should it be?" Zhang Jun began to think whimsically.

Zhang Jun really wants to see the scene of Allosaurus holding a table tennis racket and PK with opponents in the Olympic Games, surrounded by a group of Allosaurus shouting and cheering, that scene must be very spectacular.

Of course, once Allosaurus evolved a hand that could use tools, they would definitely use tools to kill prey and enemies, then the teeth and claws they used to attack would gradually degenerate, which was the inevitable result of evolutionary theory. Be a member of the mammals.

Thinking about it, doing it, many things are easy to think about, but difficult to do, Zhang Jun can't even grasp his own fate at this time, how to talk about promoting the evolution of the dragon group to higher creatures, or solve his current needs first.

"Bald, follow me forward and push the stone!" Zhang Jun let out another strange tune, ordering the bald man to follow behind him, pushing the stone to crush the spikes on the ground.

Zhang Jun walked in the front and pushed a stone with a diameter of about one meter forward, the stone flipped over, and then pressed onto the rattan thorns, and soon crushed several thorns, which seemed to work well.