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Liu Wei: "Not all whales will sink to the bottom of the sea and form whale falls after death. Some will be pushed to the coast by the sea water and stranded to death, and some whales will take the initiative to commit suicide on the shore!"

"suicide?"

"Did I hear that right? Whales kill themselves!"

"First time I heard of it!"

"Whales sometimes get stuck!"

"why?"

The audience in the live broadcast room was collectively confused.

I am very curious about the statement that whales "suicide".

Liu Wei originally thought that many viewers would be aware of this situation. After all, there have been many reports of whale suicide in the world, and it can even be said that it is about to become a commonplace phenomenon.

The suicidal behavior of whales is not only seen in individuals, but often occurs in groups.

Liu Wei recounted: “Regarding the phenomenon of whale suicide, marine biologists have put forward many hypotheses, such as topography theory, abnormality theory, guide theory, atavism theory, etiology theory, feeding theory, etc.

The basis for these conclusions comes from research on the body structure and living habits of whales.

And one objective reason I want to mention that causes whales to commit suicide is ocean pollution.

From the beginning of the 20th century to the present, whale suicides have been found in the low coastal areas of many coastal countries, including our country.

Scientists discovered the same phenomenon when they dissected whale carcasses, which were filled with indigestible plastic waste.

Once on the southwest coast of Norway, someone witnessed a suicide case of a whale, a 20-ton sperm whale.

It repeatedly slapped on the shallows, looking very uncomfortable, and it seemed that only stranding and death could end its pain.

Later, scientists dissected the sperm whale and found that its stomach was filled with more than 30 plastic bags. These plastic bags could not be digested. The penetration of chemical components caused the sperm whale's stomach to be severely infected.

I can't vomit or eat. It's very uncomfortable. You can imagine this feeling! "

"It's so uncomfortable! Life is worse than death!"

"I want to cry!"

"Hey! I don't know what to say!"

"Can I say sorry on behalf of the humans?"

"to be honest,

In fact, there is no existential conflict between marine life and us at all! "

All kinds of barrages filled with indignation and guilt began to appear in the live broadcast room.

Liu Wei's feelings are consistent with those of the audience, "I hope there will be less and less news like this!"

After adjusting my mood, I swam to the belly of the whale. There were still a few fish and crabs eating away at the remaining soft tissue, but the internal organs had already been hollowed out.

Liu Wei filmed: "I just mentioned the Japanese scientists' artificial whale crash. This is a huge and systematic scientific experiment.

Generally speaking, the carcasses of whales that die after stranding are used for scientific research or specimen preparation.

Whale carcasses need to be handled with extreme caution as they may cause whale explosions! "

Another word that the audience has never heard of.

Question mark barrages immediately covered the live broadcast screen.

Liu Wei explained: “As the name suggests, whale explosion means that the carcass of a whale may explode.

After a whale dies, its internal organs and tissues will decay, and bacteria will spread. After the proteins in the body are decomposed, gases such as methane, ammonia, and hydrogen will be produced.

These gases cause the whale's carcass to expand rapidly and may explode at any time.

If the operator handles it improperly and directly uses a knife to dissect the whale carcass, when the knife cuts an opening on the whale carcass, the gas in the body will be discharged at once, and the organs that have not yet decayed will explode. "

"Hey~, there's a picture!"

"Damn it, this is a movie scene!"

"How disgusting!"

"Guts flying everywhere!"

"Stop talking, I'm eating!"

"Hahaha!"

Liu Wei: “The gas emitted from the corpse is very toxic and will harm the human body and many living things, and may even poison people to death.

Of course, people with respiratory sensitivities may be killed by the smell of the explosion.

Therefore, if you want to make the entire whale carcass into a complete specimen, you will usually bury it underground for a few years, wait until the gas in the body dissipates, and then proceed to the next process.

In 2004, a whale explosion occurred in Wanwan. It was a sperm whale weighing 50 tons. Experts in Wanwan wanted to directly make it into a whale specimen, so they called a tow truck to drag the carcass back, which happened to be towed to the city. At the center, the whale carcass suddenly exploded, and the entire city center was shrouded in blood mist. Many people were admitted to the hospital. The stench after the explosion lasted for several months before it dissipated! "

"Pfft~ Smiling!"

“The experts at Wanwan are so cute!”

"Hahaha, I hate it! Do you know that people are most afraid of smells! Huh~"

"Laughing and crying, the talents upstairs are exactly the same!"

Liu Wei couldn't help but laugh when he looked at these actors in the live broadcast room.

He turned on the system's ventilator and took a breath.

Where he is now, there is almost no sunlight, and the water flow around him is very stable. Although he is in the wide sea, it feels like he is in a claustrophobic space.

Without sunlight, no plants can carry out photosynthesis, there is no intersection of hot and cold water currents, and there is no geothermal heat generated by submarine volcanoes, making the submarine environment very barren.

In this case, the nutrients and energy brought by the more than ten-meter-long sperm whale carcass in front of us are particularly important to the biological community that is "living" on the barren seabed.

It can be said that the effect of a sunken whale carcass on the seabed biota is equivalent to the effect of a fully loaded oil depot on the "Dream" icebreaker!

After Liu Wei took a breath, he continued, "At the beginning we mentioned the first process in the evolution of whale fall, the moving scavenger stage.

Let’s move on to the second stage, the opportunist stage.

At this time, the whale carcass only has a small amount of soft tissue and a giant skeleton, and some invertebrates and crustaceans will move in to live there for a long time.

For example: Bone-eating worms are an ancient group of marine organisms that live by eating bones. They drill holes in whale bones and rely on symbiotic bacteria to decompose and absorb bone oil and nutrients! "

"Bone-eating worm, this name sounds like something from a tomb!"

"Feel the same!"

"I already think of those bugs in Ghost Blowing Lantern and Tomb Raider Notes!"

"too horrible!"

"Drilling holes in bones? Trypophobia meltdown!"

The audience reacted strongly.

Liu Weidao: "These creatures eat the residue while reproducing offspring. They will not leave until the last trace of flesh and blood is eaten away. This process usually lasts about two years!"

After the end of this stage, Whale Luo enters the third stage of evolution, the chemical energy autotrophic stage, which is also the most important stage of Whale Luo's evolution.

When only the skeleton remains of the whale's carcass, the unique survival system of the whale fall in the deep sea is truly revealed.

A large number of anaerobic bacteria will swarm into the whale bones and other remaining tissues, decompose the lipids in them, and use the sulfate dissolved in the sea as an oxidant to produce hydrogen sulfide. Hydrogen sulfide is a toxic gas, but it is harmful to whale bones. For many deep-sea biota, it is the sunshine under the sea! "

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