After discovering that the exploration vessel could no longer provide food, the giant fish quickly lost their curiosity.

As time went by, the giant fish around the exploration vessel gradually dispersed.

In the end, only one giant fish remained in this sea area, which was the giant fish leader that appeared at the beginning.

Compared to other giant fish, it is exceptionally large.

Under the camera's view, the cracked skin on its body surface also appeared unusually thick.

Compared to other giant fish, it has one more crucial difference—its curiosity is exceptionally strong.

Or perhaps, it's more about playfulness.

Although the exploration vessel did not feed it cesium chloride and rubidium chloride, it remained by the vessel's side for the past three days.

Then it used its body and tail to keep ramming the abandoned exploration vessel.

One, two...

Perseverance, rain or shine.

This spirit makes them a model worker representative of the giant fish.

Lü Yongchang was naturally delighted with this.

He would even occasionally turn on the active sonar device to add a bit of fun to this stubborn giant fish.

Then, the pitch-black liquid ammonia seawater was filled with wave after wave of ultrasonic waves, which probably didn't mean anything good.

However, it provides a wealth of audio data for human research processes.

Although at present, these data are no different from noise.

But this spirit still deeply moved Lü Yongchang.

Therefore, Lü Yongchang shortened the activation interval of the active sonar device again.

He really made me cry my eyes out.

After setting up the program, Lü Yongchang stopped paying attention to the giant fish's peculiar "habits" and focused all their attention on the sound wave spectrum in front of them.

Looking at the densely packed spectrum in front of him, Lü Yongchang shook his head helplessly.

They still haven't found any pattern, and so far, they haven't found any repeating segments.

Of course, there are many similar scenes.

However, while the frequencies and durations of ultrasound waves are similar, upon closer examination, the differences between these segments are actually quite significant.

At least in the view of Lü Yongchang and Mao Zhengzhi, the two statements are not the same at all.

After going through the initial "find similarities" stage, a flash of inspiration struck Lü Yongchang.

"Do you think these audio recordings might be encrypted?"

Lü Yongchang seized upon a fleeting inspiration and excitedly proposed a possibility to Mao Zhengzhi:

"The brains of these giant fish can automatically encrypt and decrypt this audio information, so to us, this audio data appears extremely chaotic."

The two hit it off immediately.

then……

In the following period, they tried various methods.

This includes, but is not limited to, converting this audio information into data in various number systems, and using massive computing power to perform unified summarization and find patterns.

But what you end up with is just random gibberish.

"I really don't know what these giant fish are shouting..."

After yet another failure, Mao Zhengzhi's somewhat frustrated voice came from the side: "Speaking of which, has there been any news from Meng Lu?"

"Not yet." Lü Yongchang shook his head again, his eyes filled with helplessness. "I guess it's the same as ours."

"The language system of these giant fish is quite different from that of Earth creatures, so it is normal to encounter difficulties in the process of deciphering it."

Lu Yongchang patted Mao Zhengzhi on the shoulder, comforting Mao Zhengzhi while also taking the opportunity to comfort himself.

"Professor, [Taotie] has successfully entered its designated orbit," Zero's voice rang out from the side. "[Poseidon] cockpit has been successfully received."

"Wake-up procedure is in progress."

Upon hearing this, Lü Yongchang's eyes lit up slightly.

"Old Mao, we've got work to do!"

As he spoke, Lü Yongchang rubbed his face vigorously to dispel the lingering weariness: "Let's put the language deciphering aside for now and go take a look at that skin sample!"

A hint of anticipation flickered in Mao Zhengzhi's eyes.

Compared to analyzing languages, as a biologist, he naturally preferred to focus his energy on analyzing organisms, especially these special life forms that he had never heard of before!

...

On the other side.

Like Lü Yongchang and the others, Meng Lu also frowned as she looked at the holographic image in front of her.

However, unlike Lü Yongchang and his team, Meng Lu gave up analyzing individual sound segments after going through the same "find similarities" process.

Under normal circumstances, finding identical or highly similar segments is extremely helpful for the study of the entire language system.

The reason is quite simple.

The three basic elements of a language are: phonetics, grammar, and vocabulary.

No matter how complex a language system is, the foundation upon which it is built is fixed.

That is, phonemes and syllables.

Basic phonemes and syllables build up words, and words are then used to construct sentences using grammar.

Thus, language came into being.

Therefore, finding highly similar sound clips has become everyone's primary goal.

but……

We just couldn't find it, right?

So, while Lü Yongchang and his companion were exploring alternative paths, Meng Lu also chose another route.

Having immersed herself in the field of language for hundreds of years, she had a vague guess in her mind after observing more than 100,000 samples.

Perhaps, from the very beginning, their research direction was flawed.

The study of individual sound fragments may be meaningless to these alien life forms.

This is quite normal, after all, these giant fish don't even belong to carbon-based life forms.

Fundamentally, they are vastly different from humans or other life forms on Earth.

After realizing this, Meng Lu began to change her approach.

She stopped focusing on the differences between each sound fragment and instead grouped similar sound fragments into the same area.

As for similar evaluation criteria, they are quite simple and crude.

The duration can be similar.

All the other tiny details are unimportant.

With zero help, data processing is not difficult.

In just a few seconds, countless complex data points were arranged and combined according to Meng Lu's thoughts.

She took a few steps back, then looked up to take in the entire holographic image.

Although the data was still somewhat disorganized, she still discovered some basic patterns.

"Zero, mark the frequency changes of these sound segments."

Meng Lu quickly stepped forward, raised her hand excitedly, gestured on the holographic projection, and said in a somewhat hoarse voice.

The images in the holographic projection changed rapidly.

"I see...I see!"

"We went in the wrong direction from the very beginning!"

“They don’t communicate using ultrasound at all!” Meng Lu’s lips trembled slightly, and an unusual blush rose on her face from her excitement. “No, that’s not entirely accurate…”

"Where's the professor?" she suddenly snapped back to reality and shouted, "Zero, tell Professor Lü that I understand! I've cracked the giant fish's language system!!"