It is not easy for ants to learn to move and live on a walnut ship, and to control the navigation of the ship, which goes against the ants' natural fear of water.

But higher beings, especially intelligent beings, have the ability to go against their nature for the sake of profit.

For example, after hundreds of millions of years of evolution of terrestrial animals leaving the sea and landing on land, many species have lost the ability to move freely in the water, but in some special cases, they will still go into the water.

Japanese macaques like to soak in hot springs in winter, staying in it for a long time to keep warm is a necessary skill for them to escape the harsh winter, if it is not for hot springs, it is estimated that the Japanese macaque population will not be so large, and many individuals will die in winter.

Animals such as pigs and dogs can swim when needed, such as foraging for food or escaping danger, and their swimming skills are innate.

The most typical is the domestic cat, the domestic cat hates water, after all, its ancestors are desert cats, and the fear of water is always in its genes. Many excrement shovelers have the painful experience of bathing cats.

However, domestic cats are also born to swim, and they can adapt to water against their nature when needed, subverting the impression that many people "cats can't swim".

Relatives of domestic cats, such as the fishing cat and the Turkish Van Lake cat, are also good swimmers, proving that cats are not insulated from water.

Species such as fishing cats have even produced specific evolutions, they live in rivers, streams, wetlands and other areas with abundant freshwater resources below 1,500 meters above sea level, and their main food is fish, which can be as many as 10 species, and they also prey on other aquatic creatures such as crabs and frogs. Fishing cats have semi-webbed toes that create more friction in the current, helping them to move freely in the water.

However, many mammals are naturally afraid of water but are able to learn to swim without a teacher when they have to, because of their body structure. With the exception of a few species such as apes, most mammals have limbs under their torsos, their nostrils can be raised above the water, and they have a certain percentage of body fat, so they can float on the surface of the water and breathe freely as long as they exercise in a suitable position.

Insects such as ants, on the other hand, have a much worse body structure when it comes to adapting to water. The body density of ants is large, and if it is not for a layer of oil on the body surface that can use the surface tension of the water film, then the ants are easy to sink as soon as they enter the water.

In addition, ants' breathing habits are stomata that are located on the side of the body and are prone to soaking in water once they enter the water. Although the stomata cannot breathe on their own and will not directly inhale water into the body to cause suffocation, after a long time, they cannot exchange air inside and outside the body, and this chronic suffocation is still the culprit that causes the death of ants falling into the water.

Insects that are able to live in water are either able to breathe underwater like dragon lice or float on the surface like water spiders.

Therefore, the protagonist does not expect the ants to be able to swim in the water, he hopes that the troops can skillfully move on the walnut ship fleet, and then enter the ground battle after arriving at the destination.

The 4th Regiment of the Lamberto was trained according to this principle.

A walnut boat with a high sail was moored on the shore of a calm inlet, which had been renovated and some small pebbles that ants could carry were built into a short pier, and a dry and straight branch was fixed to the shore pier at one end and into the water at the other.

The walnut boat rests on the branch, which is the boardwalk of the pier.

The walnut boat is firmly tied to the plank road with ropes, and the rope bridge, also made of ropes, is connected diagonally to the plank road from the entrance and exit under the canopy on the top of the walnut boat.

A group of ants formed a column, marched on the plank road, and then climbed onto the walnut boat through the rope bridge and entered the walnut boat.

Although the waves in this inlet are calm, the slight waves and the blowing of the wind still make the walnut boat sway up and down from side to side within the rope fixed range. The ants who climb the rope bridge must overcome this swing and get into the safety of the walnut boat as quickly as possible.

There are always a few unlucky ants who accidentally fall into the water, and at this time, a group of ants on the shore will work together to lift the long, dry and thin grass stalks, and under the guidance of the flying knight, the grass stalks will reach the position of the person who has fallen into the water, and assist the person who has fallen into the water to get ashore.

A walnut ship can only carry a small squad of warriors, and when all the warriors have boarded the ship, three bees, under the control of three flying knights, come to the walnut ship and land on its surface, and with the assistance of the ship's ants, attach the bees to the walnut ship with the reins.

Two Flying Knights will then climb into the safety of the Walnut Boat, leaving only one Flying Knight to control the bee in the middle.

At this time, the ants on the trestle will untie the rope and rope bridge that hold the boat in place, and the ants on the boat will take the rope rope bridge back into the boat and fix it on two short wooden sticks for the next use.

The Flying Knight led the three bees in one direction, pulling the boat off the boardwalk and slowly moving through the gentle harbor in the water.

Bees are limited in what they can do and can only power a boat in relatively calm waters or with little resistance. The size of the walnut boat is also limited, and it cannot be towed by more bees.

So, when the wind is upwind, the walnut boat can only anchor to the shore and not move forward, while when the wind is downwind, you can use the rope to pull the small sail above the walnut boat to provide some extra power.

This training walnut boat is constantly training one squad after another of fighters in the inlet, during which it is inevitable that there will be some casualties caused by drowning, but the overall control is controllable. The soldiers under the command of Rambo also gradually adapted to working and living on the undulating ships.

After all, the conditions for this walnut-searching boat are much better than when the parasitic ants were thrown into the lake in a ball.

When the walnut ship fleet is formed, a large number of walnut ships are connected together, and its safety and stability will be much stronger than that of a single walnut ship, and the ants can have a more comfortable environment.

After training in the calm inlet, each team took turns to operate the boat into the big lake for adaptive training, where the wind was stronger and the waves were stronger, and the waves that surged to the shore were as high as three or four walnuts on a quiet day.

This is equivalent to an ordinary human fishing boat facing a huge wave twenty or thirty meters high.

Such huge waves threw the walnut boat up and down from time to time, and the ants could only hide in the boat and not go out, but fortunately the ants did not have a natural reaction to vomit, otherwise the boat would definitely be a mess.

The most frustrating of all are the flying knights and bees, who must try to avoid the waves or risk being shot into the water and die if they are not careful, and they also have to try to tow the walnut boat to the depths of the lake.

As long as the walnut boat is a few meters away from the shore, the water will calm down in an instant, and this is the safe zone.