Foreword: The mysteries of the natural world are endless, and the road of survival and evolution of human beings is full of infinite possibilities. Recently, a group of Bajau people living on tropical islands in the South China Sea have aroused great interest among scientists. Their isolation from the rest of the world and their skills in diving and fishing, as well as a series of changes in their body structure that are closely related to the marine environment, have become the focus of scientific research.
1. The Bajau people in marine life
The Bajau people are a special ethnic minority in mainland China, living on tropical islands in the South China Sea for a long time, and they live a primitive life in isolation. Here, they live mainly by fishing and diving, living a simple and self-sufficient life.
Especially in the activity of diving and fishing, the Bajau people have shown extraordinary diving skills, they can move freely underwater for several minutes, and they can also dive to a depth of more than 10 meters, which is difficult for even modern people to do.
The main reason why the Bajau people can have such excellent diving performance is because they have been trained in various marine activities since they were young and have mastered scientific diving skills, which have been passed down in their genes and become their survival weapons.
2. Physical changes closely related to the marine environment
In addition to their excellent diving skills, the body structure of the Bajau people has undergone a series of changes that are closely related to the marine environment.
The most obvious of these changes is their spleen, which scientists have found is significantly larger than the average person, and it is also very developed to store more blood.
This change in the spleen is not a lesion, but a kind of self-regulation of the body, because the spleen is rich in blood and can store more oxygen and nutrients, so that when the Bajau people dive underwater, the spleen will quickly release blood, delivering more oxygen to the body, thereby extending the dive time and increasing the diving depth.
In addition to the spleen, the lungs and heart and other organs of the Bajau people have also undergone certain changes, which can better adapt to the underwater environment, and these physical changes provide a strong guarantee for the diving activities of the Bajau people in their marine life.
3. Diving skills may become extreme sports
The Bajau people's excellent diving skills and physical changes closely related to marine life have brought a lot of inspiration to scientists and triggered them to think deeply about the evolution of human existence.
Judging from the current research, the main reason why the Bajau people can have such excellent diving performance is because they have lived in the marine environment for a long time and are accompanied by water, which has gradually formed a natural advantage in diving.
Based on this natural advantage, scientists speculate that the Bajau people's diving skills may become a new extreme sport, attracting more people to learn and challenge.
Of course, in order to achieve excellent results in extreme diving, it is not only necessary to have excellent diving skills, but also to have physical changes closely related to marine life, which also puts forward higher requirements for the physical fitness of participants, but I believe that with the continuous development of science and technology, extreme diving will be more exciting in the future.
Fourth, possible problems in marine life
Although the Bajau people are physically adapted to the marine environment and also have excellent diving skills, this does not mean that they can live in the ocean without worry.
In fact, due to the lack of decompression procedures, long-term diving activities can pose a certain threat to the health of the Bajau people, and diving sickness is a good example.
Generally speaking, when the human body is subjected to a certain amount of pressure underwater, the dissolved oxygen in the blood will foam with the change of pressure, and if the human body returns to the surface from underwater too quickly, these oxygen bubbles will block the blood vessels and cause irreversible damage to the body, resulting in the occurrence of diving sickness.
It is precisely because of the existence of diving sickness that the Bajau people must be very cautious when carrying out diving activities, and they also need to scientifically arrange the diving process according to the diving depth and time to avoid the risk of illness.
In addition, the Bajau people have lived in the marine environment for a long time, and are exposed to ultraviolet rays, and are also prone to skin cancer and other diseases, which may restrict their lifespan to a certain extent and become a problem that needs to be solved in their marine life.
5. The revelation of the physical changes of the Bajau people
The physical changes of the Bajau people are not only a manifestation of survival and evolution, but also bring some enlightenment to the future path of human existence.
First of all, it can be seen from the physical changes of the Bajau people that the evolution of human beings is not static, but has been constantly pushing for changes in adaptation to the environment.