The wet mud was slowly pushed away by the advancing raft, and an eye-catching trace appeared on the river beach.

The dark blue river water turned slightly yellow due to the mixture of a lot of sediment. The water waves on both sides continued to spread farther away, seeming to be sending signals to the overlord in the river.

Harley sat on the shore, opened her mouth slightly to breathe, and looked around vigilantly, but her appearance made Harley look dull.

From the corner of his eye, Bi Fang noticed something moving in the grass nearby.

Several two-meter-high grasses swayed slightly. Those who didn't pay attention might have thought it was a small breeze that had just blown. But looking at the frequency of the swaying of the grasses in other places, we knew that it was very unnatural to see a large amount of swaying in just one place.

of.

He guessed that there was a high probability of a crocodile hiding there.

As a cold-blooded animal, crocodiles can keep their body temperature basically consistent with the environment, and their metabolic levels will continue to change.

The advantage of this is that there is no need to consume energy substances in the body to maintain body temperature. Maintaining a body temperature of more than 30 degrees for normal animals requires a lot of energy expenditure. The energy provided by the same piece of meat can support the activities of ectothermic animals for a longer period of time, so ectothermic animals

Animals consume energy much slower than warm-blooded animals, which means they eat less.

Eating less is a huge advantage in the cruel nature. Eating less means that you need less prey and you are less likely to starve to death. Less prey means that you need fewer hunts and you are less likely to be killed.

Look at the animals that Nile crocodiles eat twice a year. They are either wildebeests or zebras. None of them are easy to get along with, and the crocodiles will not feel comfortable even if they are kicked by their hooves.

I often walk by the river without getting my claws wet.

The less you walk, the longer you live.

However, there are also disadvantages to ectothermy, otherwise most of the organisms at the top of the food chain would not be endotherms.

If the environment is too cold and the metabolic level of the cold-blooded animals is too low, their movements will become quite slow and clumsy, and the possibility of catching prey will drop rapidly.

The most well-known creatures that can be called the top among cold-blooded animals are probably crocodiles and pythons. They are both opportunists. They nest in a small place and cannot catch their prey unless it runs right in front of them.

kind.

For this reason, in the face of the upcoming semi-annual buffet conference, as long as there is still sun in the sky, crocodiles will climb ashore to be exposed to the sun, storing energy like a solar cell to recharge for the next action.

Bi Fang looked around and found that except for the raft, there was no splash of water anywhere else, indicating that the crocodile had not entered the water.

The audience was quite nervous when they saw this. Perhaps Bi Fang's words and actions had left a deep impression on everyone. Such a wide river was labeled as extremely dangerous in the eyes of the audience.

【Already starting to panic】

[I don’t feel safe at all]

[Won’t the crocodile attack people on the raft? There isn’t even a baffle. Will the raft fall apart if it directly presses on it?]

[I, an old man, cannot watch this]

"We still need to cross the river as soon as possible."

Bi Fang pushed the raft into the water and walked up to test the buoyancy and structure.

The river is more than fifty meters wide and is full of crocodiles. If the raft is not strong, it is just a joke with your own life.

After ensuring that everything was safe, Bi Fang picked up the skewers, called to Harley who was sitting on the ground, and prepared to cross the river.

Looking at the several exposed river islands in the river, you can tell that the depth of the river here is not too deep and the flow speed is not fast. Compared with paddles, paddles are actually a better choice.

"Although the skewer can only be used in shallow water, it is the most adaptable method of maneuvering a boat under special conditions. It can easily overcome narrow water surfaces and aquatic plants."

"Therefore, domestic wooden ships usually use poles in combination with other propulsion methods. Generally, oars are rarely used in busy shipping areas in the south of the Yangtze River. Because oars are too restricted, they must be used in open water. Narrow water is not easy to use. In open water such as near lakes,

Fishermen use a lot of paddles, and at the same time there shouldn’t be too many aquatic plants. Once they get entangled, it won’t be easy to use.”

Of course, Bifang also prepared the paddle.

There was no bamboo nearby, let alone long, straight and slender plant poles. For this reason, Bifang could only make a temporary support by connecting the branches and binding it with special knots for reinforcement.

Compared with bamboo skewers, the ones made this way are heavy, the structure is not strong, the quality is absolutely substandard, and they are basically disposable.

You have to be careful for this, otherwise it will be very troublesome if it breaks, so Bi Fang prepared an extra rowing oar in advance.

After receiving the call, Harley lowered his head and carefully looked at the slightly turbid lake surface. He stretched out his claws to try, and then quickly retracted them, looking hesitant.

Bi Fang always paid attention to the underwater environment to ensure that there would be no surprise attacks at this time. He did not rush Harley, but just let it judge the environment on its own.

It is normal to be afraid and hesitant when facing unfamiliar environments, and it is a very good habit in nature. Bi Fang will not stop Harley from such behavior, so as not to affect his future natural life.

If you are urging because you are anxious, once or twice may not matter, but once, it is actually very easy for Harley to lose such good habits.

[A bit like raising a child (dog head)]

[I feel like Harley is really smart]

[When will everyone get one of these things?]

[It’s still too dangerous]

After pacing back and forth on the shore several times for about three minutes, Harley made up his mind and carefully jumped onto the raft.

Under the influence of some gravity and inertia, the raft undulated slightly. Harley was so frightened that he immediately lay down and lowered his center of gravity. His limbs and claws were firmly embedded in the wood. He stood up cautiously until the raft was stable again.

Get up and start moving carefully.

Seeing this, Bifang continued to wait for a while. Every time he saw Harley approaching the edge of the raft, he gently patted it back. When Harley would not approach the edge easily, he inserted the prop into the river and used his strength to push it back when it hit the bottom.

The entire raft was launched.

"In shallow water, we can use two long skewers to control the raft. If you are inexperienced, it is best to work with two people, one person is in the front corner, and the other person is diagonally in the back. This way

Even if you don’t have any experience in propping, you can make the whole ship move quickly and ensure a certain degree of stability.”

"If you are alone, it is quite difficult to use a skewer. This is also a technical job that requires mobilizing all the sensitivity of the whole body. If you don't have enough skills, you will easily feel tired and not pay attention.

It could keep the boat spinning in circles."

As Bi Fang spoke, he kept moving his hands, holding on to the long pole, and gradually pushed it towards the other side of the river.
Chapter completed!