"When did you get this attack ability?" asked Su Jing.

"I stumbled upon it yesterday while looking for fish. The bat squeaked, and through the Ten Thousand Beasts, its voice sounded like that of a little boy, but it was a little hoarse, and it was necessary to listen carefully to hear it clearly.

"When looking for fish?" Su Jing was stunned, and then his eyes suddenly lit up, "Didn't the bat use ultrasound to find its prey? Could it be that the attack just now was an evolved ultrasonic attack?"

As we all know, the vast majority of bats have ultrasonic echolocation capabilities. They have a structure called a nasal lobe on the nose and mouth of their head, and there are complex special skin folds around it, which is a peculiar ultrasound device that emits ultrasound waves and emits ultrasound waves continuously. When the ultrasonic waves hit an object, they bounce back, and after receiving them with their ears, they will know the specific location of the object, so that they can avoid obstacles and catch prey, which is simply their own radar.

Of course, ultrasonic attacks are not possessed by ordinary bats, because humans cannot hear the ultrasound of bats at all. Even if a swarm of bats emit ultrasound waves together, humans will not have any reaction, and there will be no discomfort.

Therefore, Su Jing was still not sure whether the attack used by this bat was an ultrasonic attack. He checked the ultrasonic function on the Internet, but he didn't know if he didn't check it, and he was shocked when he checked it. It turns out that ultrasound can achieve many functions according to the change of frequency, and has many applications in medicine, military, industry, and agriculture, and can be used for distance measurement, speed measurement, cleaning, welding, stone crushing, sterilization and disinfection, etc. Su Jing focused on military uses, that is, ultrasonic attacks, which are mainly divided into two types.

One is to emit sound waves with the same natural frequency as an object. Using the principle of resonance, glass, tanks, submarines, fighter jets, and other objects can be shattered into pieces. However, this function is still developing even militarily, and it is difficult to achieve.

The second is the use of high-energy high-frequency ultrasound. It causes strong air pressure, causing people to have physiological reactions such as blurred vision and nausea, so that the combat effectiveness of personnel is weakened or completely incapacitated, and more serious deaths are caused. This attack is so powerful that it can shatter glass. Even if you hide in tanks and bomb shelters, it can even pass through 15 meters of concrete walls and tank steel plates.

"This bat king probably uses high-frequency ultrasound, which causes air pressure. ”

Su Jing took the bat king and rode away on the golden eagle, ignoring the other bats. Without the leader of the Bat King, the dragons are leaderless, and the other bats can't cause chaos, and the five warship birds fly back to rule this place again.

After Su Jing went home, he couldn't wait to drive to a nearby store and bought an ultrasonic frequency tester to come back, wanting to confirm whether the attack of the Bat King was an ultrasonic attack, and said to the Bat King: "For this." Use the kind of attack you just had. ”

"Hum" The Bat King didn't say a word, and sent out an attack, and the air seemed to be distorted, only to see the ultrasonic frequency detector. The data suddenly soared from zero, and Su Jing saw that the data jumped to 20,000Hz in the blink of an eye, and then soared to 35,000Hz. The frequency range of sound that our human ears can hear is 20Hz-20000Hz. Therefore, the sound wave beyond 20,000Hz is named ultrasound. This bat king attack produces sound waves above 20,000Hz. There is no doubt about an ultrasonic attack.

What shocked Su Jing even more was that the data did not stop rising. And it soared rapidly in half a second, and the moment I felt the pressure of the air, the data soared to 200,000Hz, and then dropped sharply, and the data fell to a few hertz, obviously the ultrasonic attack was over.

"Oh my God, the moment the ultrasonic attack was generated, the frequency actually reached 200,000Hz, which is ten times the lower limit of ultrasound, which is undoubtedly high-frequency ultrasound. Su Jing was shocked. Of course, he knew that the reason for the ultrasonic attack was probably not only because of this high frequency, but also because the ultrasonic power was not trivial. It's just that the power of bat ultrasound can't be detected by this ultrasonic frequency tester, and I don't know what the specific value is.

Su Jing continued to test and found that this bat king not only had the upper limit of ultrasonic frequency power to the point of exaggeration, but also made a qualitative leap in the ultrasonic range and fine control. The ultrasonic echolocation ability of big-footed mouse-eared bats is not strong among bats, because their prey is fish, the water surface is flat, and it is not as complex as catching mosquitoes in the woods, so the echolocation ability is degraded, and the detection of prey is not accurate enough. However, this big-footed rat-eared bat, let alone degenerate, has simply evolved to another level.

Su Jing made a lot of dense threads in a box, and the gap could almost only pass through the body of the Bat King, tied a bell to it, and got ten mosquitoes in, and waited for the mosquitoes to disperse, before he said to the Bat King: "Bat King, on the premise of not touching the bell, catch ten mosquitoes as quickly as possible." ”

The Bat King squeaked and flew into the box, such a small box, so many dense lines, it flew extremely fast, shuttling between countless chaotic lines, one mosquito after another fell into its mouth, it only took more than twenty seconds, the Bat King caught all ten mosquitoes, not a single bell was touched, how strong the ultrasonic echolocation ability is, you can imagine.

"This bat is so powerful, if you continue to cultivate it, you will definitely be able to become a capable fighter in the future. Su Jing was overjoyed, this bat that he got by chance was simply more powerful than most of the pets he had bred.

However, Su Jing estimates that there is an element of luck in this, which can be met but not sought. Many pets ate more jade toothfish, and there is no such obvious evolution, so large groups of bats, but only one has evolved like this. It shows that it is not enough to keep feeding the jade toothfish and cultivating it, it depends on genes and talent, this bat is estimated to be one in a million geniuses. Perhaps even if there is no jade toothfish, as long as the living environment changes, it will become the first individual to evolve.

This also made Su Jing have a new idea for cultivating pets, if there are enough jade toothfish in the future, a large number of feeding programs can be adopted, so that some individuals whose genes themselves are extremely strong can be extracted to the greatest extent. Otherwise, if the individual you pick at the beginning looks strong on the surface, but in fact the underlying genes are not very good, it will be difficult to achieve a breakthrough in cultivation.

At this moment, the alarm suddenly sounded on the mobile phone, because he was too focused on testing bats, Su Jing didn't notice that it was three or four o'clock in the morning, his eyes lit up, and he ran to the first floor quickly with his pets. (To be continued.) )