There is an island in the Pacific Ocean, there is a group of people living on it, they came to this island for only about 300 years, but because of the unique environment of the island began to have "evolution" performance, is this group of people a sample of human evolution? Will there be a whole new human being in the future?
The Bajau are an ethnic group that lives off the coast of Southeast Asia, mainly in the waters between the Philippines, Malaysia and Indonesia.
The Bajau have a very similar lifestyle to the Gypsies and are considered to be the last marine nomadic people in the world, so some people refer to them as "gypsies of the sea". In Indonesian, "Ba Yao" means "people of the sea", who regard the boat as their home, spending most of the day on the boat or living in a stilt house they have built.
The Bajau people usually fish and dive to catch the rest of the aquatic products for a living, for them, the sea is like their own vegetable field, catching fish is a very common thing.
The Bajau people hardly need any nets or hooks, but use a special spear to fish, and they do not need any wetsuits, just wear a goggle made of glass lenses to go directly into the sea to fish.
Everyone in the Bajau tribe has been fishing in the water since childhood, and diving is their unique skill, and they walk in the water as freely as they are on the flat ground.
Friends who know a little about diving should know that the official limit of free diving depth is about 40 meters, the average freediver will only dive in the waters above 40 meters, only some senior diving instructors will try to dive to 40 meters, which actually shows that ordinary people want to dive to this depth need a long time.
However, for the Bajau people, this is not a problem at all, the average diving depth of their people can reach 30 meters to 40 meters, and they do not need any diving equipment, and even a 75-year-old Ba yao elderly can easily dive into 15 meters to fish, which is unimaginable to many people.
Of course, they also have a lot of unknown pain, such as each of their clans will puncture their eardrums at an early age, so that they will not feel the pain of water pressure when diving, which also makes many Bajau people have very poor hearing in their later years.
The freedom to move underwater without the need for diving equipment has intrigued many scientists.
Researchers dissected their deceased tribesmen with the consent of the Bajau people. After dissection, scientists found that the spleen of the Ba Yao people is about 50% larger than that of ordinary humans, and the rest of the body structure and organs are no different from ordinary people.
This is very strange to scientists, because the Bajau people actually only have about 300 years of life at sea, but in just 300 years, they have begun to change so obviously. The enlarged spleen can store more blood, and the hemoglobin in the blood is the carrier of oxygen transported in the human body, which allows them to dive longer than the average person.
This change can also be called "evolution," similar to the change caused by "survival of the fittest," just as giraffes evolved to eat leaves from higher trees.
This "evolution" is not unique, in the early days, people living in alpine areas evolved higher and longer nose bridges in order to filter cold air.
However, although the body structure of the Bajau people is different from ours, they still belong to the human species.
As for whether a new human being will be formed, it depends on whether the Bajau people will have reproductive isolation from today's humans, and if they have reproductive isolation, they can be considered a completely new species.
Through the changes of the Bajau people, we will also find that evolution does not stop after the formation of species, and every living thing on the earth evolves all the time, which helps us to adapt to the environment and live better.
#Evolution, #新人类 #
Author: Deng Yuhao
Editor-in-charge: Cai Fang