What's the use of a skull without front of the skull, only the side of the skull and the top of the skull?

Of course it is extremely useful. For example, if the side of the skull and the top of the skull are restored and the head is found to be a flat head, wouldn’t it reduce the birthplace and hometown of the deceased?

Similarly, if a skull is analyzed in Malaysia, even if the front of the skull is seriously damaged, the bones on the other three sides and the remaining bones on the front of the skull can be used to distinguish races first.

The main ethnic groups in Malaysia are Malays, Chinese and Indians, as well as a small number of Aboriginal people.

In terms of skull morphology alone, the Malays have the lowest skull top, followed by Chinese, the Indians are the highest, while the Aboriginals are low and flat. The eye sockets are also different. The Malays have a round eye socket and a blunt edge of the orbit; the Chinese have a round eye socket and a sharp edge of the orbit, and the Indians have a round eye socket and a sharp edge of the orbit edge...

All these, including cheekbones, eyebrow arches, teeth, etc., have statistical differences in different races. These are difficult to destroy when the murderer hits, but some are easy to use.

For example, in terms of teeth, Chinese people have higher dental caries, and Malays have greater cheek loss because they eat betel nut...

In short, for a forensic anthropologist, a person's life will eventually be concentrated in his bones.

Not everyone can write a diary, but everyone's bones are his diary.

Jiang Yuan watched one bone after another, and made some records from time to time, and was not in a hurry to give a conclusion.

If there is only one piece and a small amount of bones, then the conclusions will be given more prefixes such as "or", "maybe", and "maybe".

Of course, there may be a complete set of bones. To obtain an accurate conclusion, the owner of the bone often needs to cooperate in front of him, do things that a few people do, get sick from a few people, and get hurt from a few people... It takes great effort to speak after death, and use forensic anthropologists to tell stories that only a few people can tell.

Otherwise, even if you leave a complete set of bones, you will be just a mediocre bone.

Jacob and others quickly took out all the bones in the pot, cleaned them up, placed them on the anatomical bed, and thoughtfully arranged them according to the anatomical standards to facilitate Jiang Yuan's viewing.

Then, Jacob looked at Jiang Yuan with a gaze, waiting for something to use him.

Speaking of which, Jacob is also a forensic doctor with a high level of technical skills. The main technical levels such as forensic pathology are at least at the level above the middle stage of LV3.

But when he was young, he didn't have the chance to learn the golden-level technology of forensic anthropology, and he had fewer opportunities when he was middle-aged. At least, other domestic forensics would not teach him, and he was embarrassed to learn it.

Jiang Yuan's forensic anthropology, which is obviously beyond the level of ordinary experts, is almost the top star that Jacob can come into contact with.

Jacob hoped to follow Jiang Yuan and study his work well, so that he could achieve something.

At this time, Jiang Yuan put down the bones in his hand and turned around and asked, "What does the DNA report say? Is there a mixed race between Chinese and Malays?"

"Yes, huh, can you tell this?" Jacob was still wondering whether Jiang Yuan would take out a bone to describe the deceased's occupational strain or metabolic disease during his lifetime. As a result, he heard a mixed-race judgment at the beginning.

This is much more difficult than judging a single race. Because single race judgment is supported by basic research, and mixed races such as Chinese and Malays are likely to exist only in Malaysian ethnic groups, so it should not be seen by a Chinese forensic doctor. It is almost the same to say it by local forensic experts in Malaysia.

Jiang Yuan said "Hmm" and said, "The deceased's nose is medium low, and the width of the piriform hole is between Chinese women and Malays. In addition, the lower corner of the pelvis is 95 degrees, and the sacral morphology is biased towards the short and wide shape of Malays, but the ischial notches are close to that of Chinese... In preliminary judgment, the genes of the Han people in East Asia account for about 60%, and the genes of Malays account for about 40%, so they should be natives of Malaysia and are no longer a generation of mixed races."

Jacob turned around and silently took out the DNA identification report. He quickly turned to the racial identification column. He looked up at Jiang Yuan and suddenly felt a little sorry for him.

If it were 20 years ago, when DNA technology was still immature, Jiang Yuan alone had to make a big spy in various races like the United States, so why was he only called "Jiang God".

"In terms of biology. Female, 35 years old, 162 cm tall, has no pelvic deformation, no reproductive history. Old fracture of the right clavicle, healed about 6 years ago."

Jiang Yuan did not look through the other bones and started outputting directly.

Jacob and the forensic doctor next to him quickly turned on the recorder and started recording at the same time.

Jiang Yuan waited for them and said: "The bones of the lower limbs of the deceased had stress changes, thick lines on the posterior femur hyperplasia, and the roughness of the bone surface increased. The joint surface of the talus was asymmetrical wear. In addition, the knee joint damage was relatively serious, and the meniscus was worn very severely, indicating long-term meniscus damage and secondary osteoarthritis. There was also L4 transverse process of the lumbar spine bone hyperplasia..."

Jiang Yuan said a lot of proper nouns in one breath, making Jacob and other forensic doctors remember that his wrists were hard.

"What conclusion can we draw above?" Jiang Yuan finished speaking, and asked subconsciously as if he was in China.

Jacob didn't think there was anything wrong with it, and said with a little intention: "The large amount of sports injuries means that the victim likes exercise?"

The forensic doctor next to him added: "And it is not an ordinary sports preference. It should be long-term training, at least at the level of senior enthusiasts."

"What kind of exercise?" Jiang Yuan continued to ask.

Jacob hesitated and said, "The thick bone hyperplasia on the posterior side of the femur, as well as knee and lumbar spondylosis... bicycles? cycling?"

"If you want to bike, you will usually experience periostitis when you reach this level." Jiang Yuan didn't think about it and denied it in one sentence.

Jacob was stunned and quickly made a record.

At this time, it was a bit like an internal medicine diagnosis.

You know the symptoms and infer the cause, there are some matching terms, but in fact, the current case is not the question on the test paper. A real bone has many appearances, and taking these appearances into consideration is often not a simple combination question.

Some appearances are even just distracting items.

For Jacob and others, they have been working for many years. For forensic anthropology, their daily use is mainly to judge gender, height, and then to find obvious medical traces.

Judging career or hobbies based on the stress changes of bones is equivalent to a test of forensic anthropology LV2. The question alone is already stumped by them.

Just like Jiang Yuan said, "The thick line on the posterior side of the femur has hyperplasia, and the roughness on the surface of the bone increases", this sentence itself is not simple.

There are many reasons for the increase in the roughness of the bone surface. After anyone is boiled and removed from the bone, he can always find some rough bone surfaces on his body. The problem is that it is rough, and the roughness of bones in different locations, and even people of different races, is different. Some internal diseases must also be ruled out.

On the other hand, most of the rough surfaces of the bones are meaningless, and Jiang Yuan specifically proposed that it was considered in conjunction with the "thick bone hyperplasia on the posterior side of the femur". This alone shows that Jiang Yuan already pointed out - Jacob had no idea in this regard at all.

Jiang Yuan did not really want Jacob to answer. He just guided his thinking path by looking at how many people were interested. If they were interested, followed Jiang Yuan's ideas, went back to think and make up for the lessons, they would gain something. If they were not interested, it would be just a process of asking and answering questions.

At this time, Jiang Yuan lifted out the bones he had just proposed and placed them separately, and said: "I think the deceased should have skied for a long time before his death, and the training intensity was too high for a period of time. Of course, it is normal for you to be unfamiliar with skiing in Malaysia."

Jacob's confused expression flashed and he quickly continued: "If it is for long-term training and veteran enthusiasts, the local ski resorts in Malaysia should not be able to meet this needs, which means that the deceased grew up abroad or often traveled to and from Malaysia and some ski areas?"

Jiang Yuan said: "From the bones, she should have skied for a long time after she became an adult, and at least a few years before her death, she still skied. By the way, the old fracture of the clavicle is probably caused by skiing."
Chapter completed!