Chen Xu switched back to the night shooting mode and said: "I believe you have also seen these stars that I took with the lens just now, yes, because the precipitation in the Sahara is very scarce, and the amount of water vapor evaporation is also very small, so there are few clouds in the sky." ”

"Under such a clear night sky, I can easily use the positions of various stars to find a lot of orientation guidance, and I can continue to use it to compare with each other, and its accuracy is even more reliable than the sun following the wind slope during the day!"

"I don't know if you have paid attention to high school history, most of the developers of astronomical navigation in the world came from Arabs, this is not a coincidence, it can only show that North Africa is indeed one of the most suitable regions in the world for observing stars!"

As soon as the audience heard this, they immediately said that they had gained a lot of knowledge.

Then, Chen Xu began to continue to rush forward.

By this time, he had already put on a windbreaker from his backpack.

During the day, the temperature in the Sahara can easily reach a scorching high temperature of around Celsius, but at night, it can easily drop below a degree.

The low ambient temperature can block the pores of the human body, which is an instinctive physiological response of the body in order to keep the body temperature from being excessively lost.

In this way, it is difficult for sweat to flow out of the pores and evaporate, but it saves Chen Xu a lot of water expenses invisibly.

Four hours passed, and Chen Xu walked nearly 20 kilometers.

At this time, it was late at night in Libya, and his heart began to be a little excited.

Because the main quest requires a kilometer, he is about to complete it.

However, at this time:

Whew——!

Suddenly, a shouting chirp pierced the quiet night sky and came from a distance.

When Chen Xu heard this, his face immediately changed.

There are beasts nearby!

Many viewers stayed up late to watch Xu Ye's live broadcast, and after they heard this tweet, they instantly hit a thrill and became a lot more sober.

It's really because, in such a dark night, the roar of a beast is so terrifying!

"Oh my God, what's this howl, wolf howl?"

"I don't think so, isn't the wolf howling 'whoop'?"

"No matter what it is, Xu Ye is in danger now!"

"Master Xu, hurry up and find a place to hide!"

Chen Xu frowned tightly and whispered to the camera: "Judging from the sound, it shouldn't be a wolf howl, it may be the bark of a sand fox, or the bark of a spotted hyena, if it is the former, it is not a worry." ”

"Although the sand fox is a carnivorous beast, it only attacks small and medium-sized animals, such as Cape hares, gerbils, etc., and does not pose any threat to us, but if it is a spotted hyena, it is bad, as the second brother of Africa, they dare to provoke even lions, let alone a dromedary. ”

"We must get out of here as soon as possible now, then find a way to find their location and find a secret place to hide!"

The first two paragraphs are Chen Xu's correct analysis.

But the last sentence is not entirely true.

According to the law of survival in the wilderness, when encountering a beast roaring in the wild, the first time you should immediately find a nearby hiding point to conceal and determine the location of the beast, rather than leaving here first.

Because, if you haven't even been able to discern the direction of the beast, how can you leave?

If you happen to run into a herd of beasts in the process of fleeing in a panic, wouldn't you die faster?

So, don't run around until you determine the direction of the beast!

The reason why Chen Xu changed the last sentence was not to find a better hiding spot, but to hurry as soon as possible and complete task one.

If he did find a nearby camp to take refuge, it would be difficult for him to hurry again without knowing when the beast would leave.

In this way, the task cannot be completed!

Rather than the emergency remedial task triggered by not being able to complete the task, Chen Xu would rather face an unknown beast.

Because, he has not yet confirmed the specific information of the beast, and besides, the beast will not necessarily regard itself as a target, that is, there is a lot of uncertainty.

However, in the case of an emergency remediation task, this certainty is very great, as long as it is triggered, the task requirements must be extremely difficult!

So, it's a matter of risk selection.

Chen Xu did not hesitate, and definitely chose to "complete the task" with relatively little risk.

Lao Bei also became a little nervous after hearing this roar.

So, he immediately comforted it and tugged at the reins, and finally let it continue on its way.

The Sahara sky is clear, and the stars and the moon cover the whole land with a silvery glow.

Chen Xu had been on the night road for more than four hours in a row, so his pupils had already adapted to the night, and he could naturally see the surrounding landforms clearly.

As a wasteland close to the central plateau, there are many bushes and wild grasses here, and it is almost close to the arid African savannah.

So, it's not an accident that there are wild beasts.

At the same time, this landform will bring a benefit, but also a disadvantage.

The advantage is that the figures of Chen Xu and Lao Bei are difficult to be discovered by the beasts.

The downside is the opposite, they don't easily spot the beast's location!

At this time, walking in the desert, all of Chen Xu's nerves were adjusted to the highest tense state.

As he walked slowly, he carefully observed the movement around him from the corner of his eye.

He is like a sophisticated radar detector, as long as there is any wind and grass, he can always make the fastest response at the first time!

And Chen Xu's right hand had already been placed on the handle of the whaling fork on his waist, ready to deal with any dangerous situation that might occur!

It's been a long time, and no more beast roars have been heard.

The entire night sky seems to have returned to its original calm.

But Chen Xu knew that this was just the calm before the storm, although he couldn't pinpoint exactly what kind of animal that beast roar was, but as an experienced wilderness expert, he knew what that sound meant:

"In nature, generally speaking, chanting in the wild is used to transmit signals, such as carnivores when they find their prey, and they will start to gather their companions to surround the prey by shouting loudly. ”

"So, don't think that if the sound stops, it means that it is safe, it is very likely that they are gathering from all around, so at this time, you must be more cautious!"

Chen Xu lowered his voice and explained a few words to the audience softly.

In the live broadcast room, the audience has long been drowsy by the tense and exciting scene in front of them, and they don't even dare to breathe.

In the night shooting mode of the drone, the entire Sahara is dark blue, full of mystery, and terrifyingly quiet.

You simply don't know that the next moment, from the bushes, from behind the hills, something will suddenly emerge!

At this moment, another roar came!