Kaichi got up from his bed on the boat, and the weather was just right.

The new ship they changed to was not much different from the old ship, it was slightly larger, and in addition to the original Jiayi and the crew on their ship, there were also new ships that sailed over. So there were two captains on board, one was the old Old Fording, and the other was the new Hewlett.

Kaichi has recently become obsessed with the study of spells, and the new crew knows only one captain.

He went to a cabin at the bottom of the ship, opened the door, it was pitch black, and there was not a single light in sight, and Kaichi walked in and closed the door, releasing a light spell that illuminated the room.

In one corner of the room was a large iron cage, or bird cage, cylindrical, about a meter high, covered with a thick cloth to cover the contents of the cage.

Kaichi took out the ropes, none of which were tied to a few small bells, and he pulled the ropes horizontally and vertically in the room, and when they were ready, Kaichi uncovered the huge birdcage, in which several bats were kept.

Today, Jia Yi is going to do a classic experiment on the hearing of bats. This may be the earliest popular science article that Jia Yi came into contact with, he learned it in elementary school, and today, he is going to reproduce a classic.

He took out a bat and blindfolded it, and he could be sure that the material that blindfolded the bat was completely opaque. In other words, what if the evolution direction of bats in the other world is different and ultrasound is not used?

Kaichi wiped the cold sweat that didn't exist on his forehead, released the bat in his hand, and then extinguished the light technique.

Fortunately, the bat still gives face, flying around the room, and there is no piaji to see where pia does not move. Kaichi can't see the bat's flying posture, but with the addition of the listening technique, it can hear the sound of the bat. The bat flew for about half an hour, and not a single bell rang, and not a single rope was touched.

Kaichi breathed a sigh of relief, fortunately, the bats here did not mutate, at least they flew at night without relying on their eyes.

Next, Kaichi did two more experiments: once he plugged the bat's ears, and once he sealed the bat's mouth and let it fly around the house. Bats scurried around like headless flies, and bells hung on ropes rang non-stop.

Kaichi can finally be sure that even in the other world, at least the bats he caught fly at night not by their eyes, but by their mouths and ears to find their way. In order to reflect his rigor, Jia Yi did not directly conclude that the bat relied on ultrasound, because these conditions do not confirm how the bat finds its way.

The rise of Jiayi's experiment, and then he tried to release more bats at the same time, blindfolded bats and covered ears, and so on, and came to various conclusions. By the time Kaichi finished the experiment, the bats had become weak. In other words, what happens if a bat covers its mouth and the other covers its ear, and flies together? What if it covers one ear? Does it make a difference?

After all these experiments were done, Kaichi became interested again, the bat's mouth and ears can replace the eyes, so are its eyes useful?

However, too much has been done in today's experiments, and the bats are not very energetic, so Jia Yi can only throw some moths into it to feed the bats and let them rest.

These bats were caught by him before he got on the boat, and if they died, it would be difficult to replenish them, and it was not yet the season for moth mosquitoes to breed in large numbers, and there were no bats near the water.

Kaichi came out of the dark room, it was already afternoon, and he had no interest in eating in the dark environment of bats flying, so he felt a little hungry now.

In his kitchen, there was nothing to eat, to be precise, there was no food to be cooked. Since Kissin became the ship's head chef, the food consumption on the ship has been much greater, and the leftovers are basically gone.

But fortunately, there was still Kissin, and when he saw Kaichi coming out of the cabin on the ground floor, he knew that Kaichi hadn't eaten yet, so he followed him to the kitchen and prepared to make him something to eat. When Kissin arrives in the kitchen, he sees Kaichi distracted in front of the clean kitchen.

Kissin said, "Jiayi, you haven't eaten yet, do you want to order some noodles for you to eat?"

"Do you still have noodles?"

"No, it can be made fresh, very quickly. ”

Jiayi thought about it for a while, and felt that making noodles was a little too troublesome: "Forget it, let's make some gnocchi soup, it's too troublesome to make noodles now, and you can have dinner when it's ready." ”

Hand-rolling dough is too complicated, kneading, rolling, time-consuming and laborious. If you think about it this way, all the noodles are quite troublesome, at least one kneading process is indispensable, not as convenient as rice, but the gnocchi soup is really fast. In the past, when Jia was an hour, of course, when he was a child in his previous life, when the family was too busy in the summer, the weather was hot, and he had no appetite, he would make some gnocchi soup.

To be honest, the taste is average, just a convenient and fast, the main gnocchi can not be too big, otherwise it will be hard, and it may be sandwiched inside, and the taste is not good, but with vegetables and lard cooked, the taste is not bad. Especially now, with the bonus of memories, it is enough for Kaichi to deal with it.

Kissin thought that Kaichi was going to do something delicious, and followed him and watched him do it.

While looking at it, he asked, "Jiayi, what are you doing at the bottom of the cabin?"

When Jia Yi heard this, he turned his head and looked at him suspiciously, not knowing why he was interested in this. However, Kissin thought that Kaichi was not satisfied with his inquiring, and hurriedly said: "I didn't want to hear anything, but a sailor felt a little uneasy when he saw the cage you moved to the bottom, and there were many bats in it." ”

"Uneasy?"

"Yes, people think that bats are not a good thing, and that you might be doing some evil experiment. Kissin said, carefully observing Kaichi's expression.

Kaichi laughed dumbly, thinking that these sailors were a little too ignorant, did the bat have any inevitable relationship with evil?

In fact, in ancient China, the bat was a kind of rui beast because of its homonym with Fu, similar to the swallow. However, there is a legend of vampires in the West, because the wings of vampires are similar to those of bats, resulting in bats becoming inseparable from evil. And the image of the bat is indeed a bit weird, not only with fangs, but also with a pair of fleshy wings, which is completely different from the rest of the animal images.

On Earth, bats are the only mammals that can fly, and it is not known if this is the case in the Atlas.

If you count the dragon, it should be an oviparous, and if you count it as a reptile, even if there is a demon or something, it doesn't seem to be a birth, and it is said that an angel is not, but is directly reincarnated from the reincarnation pool. Speaking of which, a mage who learns to fly should not be counted, after all, he is not born. Thinking about it carefully, Kaichi couldn't even think of a second mammal that could fly.

Probably because he has less knowledge, Jiayi doesn't dare to arbitrarily think that bats are the only mammals that can fly.

However, this did not affect Jiayi to Kissingop: "I'm doing an experiment, but it's not an evil experiment. Bats have nothing to do with evil, most bats only eat fruits, nectar, and insects, most small insects eat insects, and large ones feed on fruits or nectar. It's not much different from ordinary animals, and it has nothing to do with evil. ”

"Really, so bats don't suck blood anymore?"

Kaichi was a little speechless this time, because there are indeed bats that suck blood, and although they don't feed on people, they also attack humans. But what is the essential difference between this and being attacked by wolves? Unless it's a bat-like monster, it's not harmful to humans.

Jia Yi Yi changed the subject: "Don't you wonder why bats can see so clearly at night?"

Kissin glanced at Kaichi and seemed to wonder if Kaichi was stupid, and said, "Isn't it because the bat's eyes are good that they can see clearly at night?"

"No, oh, the water is boiling. "The bats can see at night has nothing to do with the eyes, I blindfold the bats, and the bats can see, but the ears are blocked..."

Kaichi said while getting a pimple on his face, completely unaware of the strange eyes of Ki Kimchi next to him.

The look seemed to say, "Are you stupid to me, you tell me that bats don't see things with their eyes, they use their ears?"