Just as some people are strong by nature and some are weak by nature, the same is true of elves, many of whom have honed their indomitable will through past experiences, while others do not possess such a character, and it is understandable. The world is so big that there should be an infinite number of personalities that are never the same.

That being said......

It was pouring spring rain outside, and there were teardrops in the house, Zhang Zi'an and they were very worried, for fear that Shihua would cry again if he didn't agree with him......

Why did the pet store manager die tragically on the street?

Why are dozens of pets running around during the day?

Why do the fish in the aquarium pop out so often?

Why do nocturnal bats prostitute during the day?

Is it a mad outburst or a hunger and thirst for helplessness?

Is it a distortion of human nature or a moral degradation?

Welcome to "The Strange Sounds of Entering Science's Pet Shop"!

It's very emotional to think about, but it's a no-go!

The best way to keep Shihua from crying is to turn grief and anger into strength, but this is not easy for her who is weak by nature.

Lao Cha and Fina sympathize with Shihua in their hearts, and they can understand her loneliness, because they are also lonely in a sense, the kind of loneliness that is unbearable in the heights.

Understanding is understanding, but they don't know how to comfort her, and although they are lonely, they are stronger and prouder.

Zhang Zi'an sighed lightly, reached out and rubbed her head, and said, "Don't cry, I'll tell you a story." ”

"Nasty! Don't mess with other people's hair!" Shihua shook his head embarrassedly, and the remaining tears in the corners of his eyes were thrown into the water with his movements.

In fact, her hair is already very messy, curled like dark green seaweed, never combed, and she starts playing with her mobile phone every day when she opens her eyes, but this is a world of face after all, because her face is unparalleled in the world, and even her unkempt hair exudes natural beauty.

However, she was very curious about the story Zhang Zi'an was going to tell, and even overshadowed the sadness in her heart, and asked expectantly, "What story?"

"It's the story of a whale, a lone whale. Zhang Zi'an briefly introduced, which couldn't help but be reminiscent of the lonely song that Shihua just mentioned.

Fina and Lao Cha are also quite curious, after all, cats are curious by nature.

"Squeak?"

At some point, π also appeared at the bathroom door, gesturing and meaninging: Can I listen too?

"Absolutely. Zhang Zi'an beckoned it in.

Watched by four pairs of expectant eyes, he recalled the stories he had read before, organized the language, and retold the story in his own words.

Old stories often begin with "a long, long time ago" as the opening line, so that the listener quickly disconnects from real life, just like the opening of the Internet is often through the other world, so that the reader knows that the story cannot be judged by the rules and regulations of reality.

But alas, this is not a story that happened a long time ago, and it is not who crossed into the other world, but a real story that once happened.

The story begins at the end of the Cold War, when the United States, in order to counter the imaginary enemy, established a hydroacoustic listening system called SOSUS.

Many things were created with the original intention of the military, but later they had an unexpected effect in other directions, and the same is true of SOSUS.

There are so many sounds at the bottom of the sea that the U.S. Navy, as a military man, can only distinguish a small part of them, and most of the rest even they don't know what exactly it is, but for defense reasons, they want to know.

So they wisely decided to work with scientists, sharing some of the military's recordings with scientists, who would analyze what the military wanted to hear, which could benefit both sides.

Dr. William Watkins, a researcher at the Woods Hole Oceanographic Institution, was the first to hear an unusual sound in an audio recording, which resembled the song of a whale, but was paradoxical to the closest blue whale, because the frequency band of the blue whale is basically between 15 and 20 Hz, and the frequency of this sound is as high as 52 Hz.

After the end of the Cold War, more audio recordings that were originally top secret were made public.

The dragon's headless whale was recorded more than once, and scientists did more research and even mapped out its swimming route based on the location of the recording, but the ocean was too big and too deep for anyone to see it with their own eyes.

In the 21st century, this unfinished study was published, which aroused the curiosity of the world, and people called this mysterious whale "52 hertz - the loneliest whale in the world".

More people have joined the study and tracking of this whale, and people have been able to record its voice almost every year, but they have always been on the same page.

It swims in the vast Pacific Ocean, mainly in the eastern Pacific Ocean and the west coast of the United States, but often farther away.

More than 20 years have passed, and the whale still sings alone in the ocean with a unique frequency.

Because its sound frequency is completely different from that of other whales, it is unable to communicate with its own kind, so it has been excluded from cetacean society and has been lonely for more than 20 years.

It has been hovering in the depths of the ocean, singing songs that have no response of its kind.

It has been roaming in solitude, searching for traces of its kind on a journey with no end in sight.

In recent years, its voice has become more muffled, from 52 hertz to between 45 and 50 hertz, and it is speculated that it may have matured, growing from an ignorant teenager to a young and vigorous youth, but this is only speculation, and no one knows what the truth is.

No one knows if it's male or female, no one knows if it's young or old, no one knows what kind of whale it is, or even if it's alive or dead...... Because it hasn't been recorded since 2004.

No one wants it to die, and if it dies alone like that, the story has a tragic ending.

Probably, it's just bad luck that I didn't record its voice.

Because the most dense place for hydrophones is in the eastern Pacific Ocean, the west coast of the United States, maybe it swam somewhere else, and there are not so many hydrophones there, and there are not so many scientists who are passionate about studying the oceans.

People believe so.

In order to find its traces, in order not to be forgotten, people who love and sympathize with it even raise funds to make documentaries and films, and compose songs for it.

Zhang Zi'an had read this story a long time ago, and he, like everyone else, didn't want it to die like this, but reason told him that it was probably dead.

Perhaps, he was wrong.