In addition, after arriving in the inland area, there is a wide river that extends to the west, and the river flows from west to east, both sides of the river are primeval forests, Zhang Jun found this river five hundred kilometers ago, and has been following the south bank of the river to the west, he does not know the origin of this river, only hopes that it can extend all the way to his destination.

In recent months, the water source problem has been completely solved, the dragon group does not need to look for water source everywhere and delay time, and the resistance encountered is getting smaller and smaller, along the way Zhang Jun encountered the provocation of more than a dozen kinds of carnivorous dinosaurs, as large as more than ten meters, as small as only two or three meters long, no dinosaur can really threaten the safety of the dragon group.

But although Zhang Jun was careful to avoid a death fight with carnivorous dinosaurs along the way, he was still unable to avoid some scrambles, which eventually led to the death of about forty or fifty dragons on the way, not including the Allosaurus that died of illness and accident along the way.

Due to the continuous birth of new dragons, the number of dragons has remained relatively stable, still around 100, and the group of dinosaurs with bald heads, big el, and little el, has grown to more than ten meters long, close to the maximum body length.

The number of dinosaurs above five meters also exceeded fifty or so, and the size of more than thirty dinosaurs had exceeded ten meters, reaching Zhang Jun's ideal number, and the strength of the dragon group further increased, and the later it was, the more difficult it was to meet the opponent, so before approaching the destination, the dragon group was almost invincible, killing gods when encountering gods, killing Buddhas when encountering Buddhas, unstoppable, and the march became much smoother.

At this time, the dragons were entrenched on a river beach, where there was a grayish-white primeval sand, with a number of rocks of various sizes, scattered in various places, and the beach had a certain slope, connected to the endless jungle. The dragons were sharing the meat of a few dinosaurs that they had just hunted, which were very ordinary ankylosaurs, and when they saw the mighty dragons coming, they barely made much resistance and became food for others.

Zhang Jun is enjoying a ton of small dragon meat alone, the long-term experience of wild survival, so that he no longer eats the delicious and delicious internal organs of these animals, every time he eats, he will carefully check these animals for signs of disease, mainly to see if there are parasites in their stomachs, or the internal organs have obvious color differences, once found that there is a problem, he will try to avoid these potentially disease-causing food.

Zhang Jun carefully cut open the stomach of the ankylosaurus, and then let its internal organs appear, sniffed it carefully with his nose for a while, and found that there was no special smell, and then found that its color was very fresh, there were no discolored internal organs, and there was no sign of parasite activity, so he ate boldly with confidence.

It's not that Zhang Jun has to be so careful, because disease is a terrible destructive factor, he is not afraid of heaven and earth, he is afraid of getting sick, in the barbaric era of lack of medical treatment, if he is infected with an incurable disease, it is tantamount to self-destruction, be careful to sail a boat for ten thousand years, so he would rather be hungry than touch the dragon meat that looks problematic, and when he has time, he will also prevent other dinosaurs from eating unhygienic food.

There were also several dinosaurs that died along the way, some of them were bitten by some insects with germs and contracted diseases, and some of them got sick from eating unclean meat, which made Zhang Jun have to consider another problem, that is, the hygiene of food.

For Zhang Jun, this problem is not complicated to solve, that is, to use fire to grill food, and then eat, so that the safety is much higher than eating raw meat, but drilling wood to make fire will take some time, and it will also cause panic among other dinosaurs, after all, almost all animals are afraid of fire, and they avoid this kind of thing that can burn their bodies.

Zhang Jun has already begun to try to use the method of drilling wood to make fire, this method he has seen in science and education films, that is, use a dry wooden board underneath, and then take a dry wooden stick with a round head, about 30 centimeters in length and 2 centimeters in width, aim the wooden stick at a small hole in the wooden board, and rub it back and forth.

This action should be very delicate, for the thick palm of Allosaurus, it is indeed a little difficult, other dinosaurs are almost impossible to complete this task, only Zhang Jun can do this, but the effect is still slightly inferior to the dexterous palm of humans.

When making a fire, Zhang Jun will find some dead branches and flammable plants, slowly put them near the fire point, and then blow with his mouth from time to time to replenish enough oxygen, so that it is easy to catch fire.

Under normal circumstances, Zhang Jun will bury a dead wood in the soil, and then use a wooden stick to start drilling wood for fire, at first, a few hours without effect, after several years of practice, only to be able to within ten minutes, sometimes only a few minutes, can be distributed on the dead leaves on the wood on the fire.

But Zhang Jun has to eat 500 kilograms to more than a ton of meat at a time, so it takes a lot of time and wood to cook so much meat, and when it rains, he takes out some of the wood stored in the cloth bag and ignites it and uses it as fuel, if it rains for a long time, the fuel will be a problem.

Of course, every time the food is cooked on the fire, Zhang Jun can only enjoy it alone, he does not have the ability to let all the Allosaurus eat safe and hygienic meat, they have to learn to drill wood to make fire, it is too difficult, this kind of technical work, requires a high degree of thinking ability to cooperate.

This time, when all the Allosaurus were full of food and drink, after resting, there was a burst of meat aroma from Zhang Jun's location, which stimulated the taste buds of many Allosaurus, and they couldn't help but raise their heads and look not far away, only to see that the leader was tearing off the roasted Ankylosaurus meat from a thick wooden shelf, putting it in his mouth, and eating it with relish.

At first, when Zhang Jun used the fire to barbecue food, the other Allosaurus hid far away, and after getting used to it, they began to observe the way the leader ate, although they did not understand why Zhang Jun did the extra thing, but they also became a little interested in cooked meat.

A few times when Zhang Jun was unprepared, a few ignorant little dragons came over to steal cooked meat, Zhang Jun sometimes drove them away, and sometimes let them eat their own leftover meat, he thought to himself that let these little dragons get used to the deliciousness of cooked meat, maybe it was a good thing, at least they did not reject cooked meat, which was beneficial to the future evolution of the dragon group.

Zhang Jun's saliva flowed down his neck, and he chewed the ribs of the ankylosaurus with a big gulp, and then he saw a familiar figure walking towards him, it was the black skin, at this time it had grown to the size of Zhang Jun, and the body was still the strongest one among the dragons of the same age, and a pair of thick forelimbs with sharp claws swayed along.