Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit.

2025/07/0401:07:37 news 1465

(Some pictures in the article may cause discomfort, please read carefully)

(Some pictures in the article may cause discomfort, please read carefully)

(Some pictures in the article may cause discomfort, please read carefully)

In Chicago, USA, there is an Field Museum of Natural History .

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Its appearance looks very atmospheric, and it displays more than 24 million items such as fossils, meteorites, , prehistoric civilization , and it is a very suitable place for children to visit.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

But underground in the museum, there is a mysterious area...
Only staff and scientific researchers are allowed to enter there. There are no exquisite booths, only rows of cold shelves.


11 million animal specimens were placed on the shelf where there was no end.

They open their unconscious eyes and soak in the yellow anticorrosion liquid.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

The basement of the Field Museum of Natural History is a bit scary, and the staff admit it, and they joked that they were working in the "animal morgue".

Here, you can see bat like pickled cucumber...

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

The clean bat skull is like being cleaned up by a picky vampire...

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

The still developing bear fetus is about the same size as a mouse...

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

From all over the world Hundreds of giant cockroaches...

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Nearly two meters long Komodo dragon ...

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Colouge 's brain, heart, eyes...

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Since its establishment in 1893, the Field Museum of Natural History has been continuously collecting anti-corruption specimens and will continue to be collected in the future.

looks quite interesting, but why collect such a huge amount of specimens? Why are all
placed in wet anticorrosion liquid?

"You treat this as a library." The museum staff told the media that
"Storage in this way, the wet specimens can maintain their original shape, and sometimes even save DNA. "

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

"Basically, this is the closest way for researchers to run a living zoo in the laboratory."

"Each can of specimens is a book, and researchers can open it, draw knowledge from it, and sometimes discover new species."

specimens in the museum are mainly obtained through two channels. The first type is donated by others, and the second type is that the staff will go to the wild to capture it themselves.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Sara Ruane is the assistant director of the Reptile Museum, responsible for the entry of each reptile specimen. The following water snake was caught by a colleague. The production process of

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

specimens is not complicated.

First, Sarah will disinfect the scissors, use it to cut open the snake's abdomen, and remove the snake's liver. She sealed the liver in a small tube, marked it and put it into the liquid nitrogen freezer in the museum.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

specially removes snake liver because this part dissolves very quickly and is the most convenient place to extract DNA. The freezer in the
museum contains thousands of animal samples, and future scientists want to know their information and can take it out at any time. The remaining snake body needs to be saved by the anticorrosion liquid.

Sara put formalin into the syringe, slowly fill the inside of the snake, and then turn its genitals out obviously. This will facilitate future people to know the gender of the snake without opening the can.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Finally, she plated the snake in circles and covered it with a tissue soaked in formalin.

After a period of time, the snake can completely absorb formalin and maintain its current shape. After the snake is fixed, it can be put into a jar filled with companions.

Some large animals need more formalin, such as catfish .

handles it with Caleb McMahan, the head of animal collection. He needs to calculate the size of the internal space of the catfish and then figure out how much formalin is injected.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

If there are fewer, the specimen will start to rot, and if there are too many, the specimen will deform and expand.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Caleb fills the catfish and puts it in a stainless steel cabinet where there are more formalin.

The treatment of large animals is better than that of small animals, and they usually have single rooms.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

After soaking in the cabinet for a week, the catfish will be taken out and washed with alcohol. Alcohol is less corrosive than formalin. If you want to save it for a longer time, you must use it.

In the museum, there is a Komodo dragon soaked in alcohol for decades. Its appearance is still lifelike, as if it is ready to surface and bite people at any time. Josh Mata, who is in charge of it, said that except for the darker the color of alcohol, everything else is the same as when it was saved back then.

"Large animal specimens will release a lot of residues and oils. These things were originally in their bodies, but they will slowly penetrate into the alcohol. This causes discoloration, but it doesn't matter, it can still preserve animals well."

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Field Museum of Natural History strives to make the specimens look alive, But for some small animals, their methods of handling are different.


"We want to observe the details of small animals under a microscope, and in order to do this we need to stain its bones and cartilage," Kaleb explained.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Caleb prepared two kinds of pigments, the red ones absorbed by calcium and the blue ones absorbed by cartilage. After soaking the fish in the pigment for a few days, he rinsed it and used trypsin to decompose protein . At the same time, the collagen on the fish was retained.
So the fish becomes transparent all over, and the flesh and cartilage inside are clearly visible.
looks weird and charming.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

By observing the fish bones close up, they found that the two fish that were originally considered the same were actually different because the head bones were very different.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Surprises of discovering new species are not uncommon in the museum.

60 years ago, someone found a spider-tailed horned viper . At that time, researchers thought it looked quite strange, different from the ordinary viper . But they thought it was a mutated viper, and they made it into a specimen and put it on.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Until 2000, a curious reptile scientist came to the museum and found that the snake was different.
Finally he said that he was sure that this was a new species.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

"Our library is equivalent to a library, but the shelf is not a book, but a can of animals." Caleb said, "These animals are divided into categories according to the category. When you want to check, you can open it to view it."

"We even have a database that records the time and place of each specimen found."

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

However, it is not easy to read these "wet books". Because over the past century, the number of specimens in the basement has been increasing, and the specimens originally stored alone have to squeeze with other specimens.

contains 883 frogs in a cabinet. Although each of them has a mark, it is quite laborious to find specimens for a specific year.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Chicago scientists are already very satisfied. If you want to study the shape and DNA of animals, come to this museum.

is just like the staff boasted, it is a zoo that can be studied at will, except that not many animals are dead.

Its appearance looks very atmospheric, with more than 24 million items including fossils, meteorites, prehistoric civilizations, etc. It is a very suitable place for children to visit. - DayDayNews

Although it looks a bit terrifying on the outside, from a scientific point of view, every anticorrosion specimen with a stare at death in
contains knowledge...

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