Zhang Jun found a higher place, it was a soil slope about ten meters high, there were several iron trees growing on the soil slope, and there were some other weeds and big trees around.

When Zhang Jun looked into the distance, he was immediately stunned by the scene in front of him, about five hundred meters away, there was a wide river, both sides of the river were covered by vegetation, and there were several wide sandy beaches, where several groups of large dinosaurs were gathered, they were drinking collectively on the shore, and most of them were very large.

Zhang Jun is on the south bank of the river, he has been thirsty for a while, he has not drunk water, he wants to get close to the past and drink a happy meal, but to squeeze together with those big guys to drink, it will inevitably cause them to scratch, maybe there will be a conflict with the big dinosaurs that protect the cubs, among which there are several giants with a length of nearly 30 meters, and a light blow can kill themselves.

Zhang Jun decided not to go for the time being, he found a place with the most open line of sight, lying on the ground and waiting for the opportunity, he wanted to wait for one of the big guys closest to him to leave a river beach, and then get close to the past to drink.

This group of dinosaurs is a group of huge diplodocs, it seems that Zhang Jun met a year ago, two or three of them have grown to about 30 meters, most of the other dinosaurs are about 20 meters, and there are two or three cubs that are only five or six meters long, but they are also several laps larger than Zhang Jun.

The most striking feature of the Diplodocus is that its neck and tail were elongated, and its body was short, and its body was only shorter than that of the giant dinosaurs of the same period, which could grow more than 40 meters, and longer than that of the melosaurus and the bewildering dragon (also known as the brontosaurus).

However, the weight of Diplodocus was the lightest of these dinosaurs, which is also due to the fact that they had a short middle part, so they weighed less. Generally, large adult Diplodocus weighed only a dozen tons, while the other three dinosaurs could exceed 20 tons or even reach more than 40 or 50 tons.

Diplodocus had a nose above its head and no ears, which allowed them to take refuge in the water when they were being hunted, and they could rely on the stomasites on the top of their heads to breathe.

Zhang Jun didn't think he could hunt a huge diplodocus yet, he didn't have the urge to hunt at all, his eyes were wandering around to see if he could find a target that was smaller and bring back a prey by the way.

Soon, after keen observation, Zhang Jun found the shadows of some small ancient beasts in the jungle on both sides of the river, many of which he had never seen before, nor did he know their names, and later generations may not have found their fossils at all. In terms of physical appearance, they are mainly carnivorous animals, but they seem to want to go to the river bank to drink water, just like Zhang Jun.

In this era, herbivorous dinosaurs had to grow tall or heavily armed to defeat the ferocious carnivorous dinosaurs, and those smaller herbivorous dinosaurs could only survive in areas with better concealed surnames, or perhaps in places with fewer natural predators, such as isolated islands.

In addition, Zhang Jun also found that in the jungle on the other side of the river, there are many ancient beasts moving on the trees, among which there is an animal that looks like a lizard and is good at climbing trees, and they can be seen everywhere, which may be tree lizards.

This kind of tree lizard, in the jungle where Zhang Jun has lived for a year, has not been found, they are not only the natural enemies of other small animals, but also the prey of carnivorous dinosaurs, but their good climbing ability makes them easy to get rid of the pursuit of large carnivorous dinosaurs.

However, all ancient beasts have a fatal weakness, that is, they must drink water, and when they drink water, they must run to the distant water source, if in the rainy season, there are many puddles in the forest, they will meet their needs nearby, but in the dry season, they must venture to the distant rivers or ponds, lakes to drink, then it is full of dangers.

Now in the alternating season of the rainy season and the dry season, even a master like Zhang Jun, who can make stone tools, can't get enough water nearby, let alone these low-IQ savage ancient beasts.

Zhang Jun saw the tree lizards active in the treetops, all of them hooked their necks and looked in the direction of the river beach, they were all looking forward to the opportunity to rush into the river to drink a hearty meal, just waiting for those trolls to drink and leave.

"The food in the forest across the river seems to be more abundant!" Zhang Jun estimated that he could see the figures of animals flashing on the other side of the river, several times more than the jungle he lived in, and it seemed that the jungle area was wider and denser.

Zhang Jun's size is getting bigger and bigger, and as his cultivation deepens, his food consumption is also increasing invisibly, larger than his similar kind of the same size, and he will eat more frantically in the future, the previous jungle will obviously gradually be unable to meet his needs, if possible, he wants to cross the river to settle a new nest.

The dozen or so diplodocus had a great appetite, they kept lying on the bank of the river, stretching out their necks several meters long, and gurgling and drinking water, this behemoth weighed dozens of tons, and they needed ten percent of their body weight to eat on average every day, because they were large and needed a lot of energy to sustain their life.

Many of the mammals in later generations eat 10% of their body weight every day, and people are slightly less, but fortunately, Zhang Jun does not need to eat three meals a day like people at this time, and one meal can be kept for a long time, which is a talent that must be possessed in order to adapt to the dangerous environment.

Zhang Jun hid in a cycad tree, waited patiently for about twenty minutes, and finally saw that the dozen or so diplodocs gradually began to raise their heads, and all the diplodocs seemed to have drunk enough, and gradually began to form a team, ready to retreat into the jungle.

"It's finally my turn!" Zhang Jun's throat was a little dry, and he swallowed a mouthful of saliva.

Then Zhang Jun carefully looked around again, and found that there were no other predators nearby, so he immediately got up and walked slowly forward.

But within a few steps of walking, Zhang Jun felt a sudden abnormal tremor on the surface, after he cultivated the Yi Jin Sutra, his body was very sensitive, and he could sense the small sounds around him.

"Roar!" A huge dragon roar suddenly rang out behind him.

"Nima, this dinosaur is so well hidden!" Zhang Jun was immediately a little frightened, he just looked carefully at the rear, and did not find that there were dinosaurs at all, but at this time, there was a sudden dragon roar, there was only one possible surname, that is, this dragon was the same as him, good at concealment, and was a smart guy.

Zhang Jun immediately lowered his head and lay on the ground, with the help of the iron tree block, hidden, turned his body to the rear, hooked his neck and stared at the side of the dirt slope.

What Zhang Jun saw was not a dinosaur, but a group, about seven or eight dinosaurs roaring, rushing towards the river bank, and they were scattering in all directions, probably to block the retreat of other dinosaurs.

Zhang Jun understood that he had encountered a group of smart and cunning guys, and he didn't move, because there were dinosaurs running from all directions, and they were only less than a hundred meters away from his location, and there was basically no way to escape.

Soon, Zhang Jun found that those dinosaurs were of different sizes, the big ones were more than ten meters, the small ones were seven or eight meters, and there were one or two as big as himself, and these guys looked exactly like himself, with blue-gray fur on their bodies, thick as toads, and their mouths were full of fangs.

They weren't very fast, slower than later felines, but they were clearly a few points better than the bulky Diplodocus.