Chapter 305

"It seems like such a reason..." Hao Zhi nodded suddenly. "But our archaeologists have found so much evidence to prove that human beings evolved from ancient apes step by step?"

"If you don't think about it, is it because underwater archaeology is more difficult than land archaeology? In addition, in the marine environment, the possibility of preserving the corpses of ancient organisms as fossils is too small and difficult to find. Let me give you another example. Humans are fat. Have you ever seen monkeys?"

"Ah? That counts?"

"Of course, subcutaneous fat has a large volume and light proportion, which is conducive to the preservation of energy and temperature. This is obviously the characteristics of underwater organisms. However, sea lions, seals and walruses will fill themselves as fat as long as they have sufficient nutrition. This is very similar to humans, not to mention monkeys, jackals, tigers and leopards. How many fat people have they seen?"

"Pig!" Song Xiaojia saw the light.

"Captive animals cannot be included. Their natural characteristics have long disappeared in the long process of domestication, just like goldfish. There is no such species in nature." Professor Naduo laughed.

"Is there anything else?"

"Yes, for example, human beings have the physiological function of lacrimal gland to secrete tears and excrete salt. This function has nothing in common with other terrestrial primates, but is unique to aquatic mammals; human beings have physiological phenomena such as face-to-face sexual behavior, supine sleep and sweating, which are not found in other terrestrial primates, but similar to aquatic animals... The most important thing is , the fetus will have parotid fissure in the early stage of pregnancy. This typical fish feature is considered to be strong evidence of human atavism; finally, the human body contains about 70% water, which greatly exceeds the water content of all terrestrial primates... "

"Wo ri..." Hao Zhi opened his mouth and stayed for a long time.

"You mean, we are different from all terrestrial animals?"

"Yes, haven't you considered these problems carefully before?" Professor Naduo smiled proudly. "Do people have noses and monkeys?"

"Nose?" Hao Zhi unconsciously touched his nose and looked at the professor curiously.

"Yes, when you are half submerged, your nose is like a front water separator, like the front end of a ship, reducing the resistance on the water surface. Even from the simplest point of view, the human nose is a failed work. With its big head down and facing the ground, it is easier for animals running close to the ground to absorb dust. Therefore, how many noses of other primates Almost all face the sky. Only the human nose structure is anti choking structure. It also has nose hair as hard as grass. It seems far fetched to prevent mosquitoes from flying in. However, in the ocean with poor water quality, it is a good thing to avoid microbial invasion... "

"Oh... It turns out that humans don't grow like this casually!"

"Of course not. Almost every organ in our human body is tailor-made for living in water!" Professor Naduo turned back and pointed to Jiajia's long curly hair, "hair, is this unique to human beings?"

"Yes, if it wasn't for artificial pruning, men and women should have long hair. This is in line with human natural characteristics..." Hao Zhi thought and said.

"Yes, tough hair can also disperse the impact of water flow. It is a perfect guide body to avoid the direct impact of water flow on * * * * head. Don't underestimate the impact of waves. It will cause slight concussion to the brain. Without the protection of hair, people will become idiots over time!

There is also hair swirl, also known as "head swirl", which is located in the middle of the head. Because the hair does not grow perpendicular to the epidermis, it has an inclination angle of 40 or 50 degrees, and the inclination direction of hair in different parts also follows the geometric formula, so as to form the "head swirl" at the top of the head. According to the above point of view, "head swirl" It is a biological design based on fluid dynamics, which makes people in the ocean more calm against wave impact. "

"Then you'll become a mermaid?" Hao Zhixi answered out of the field. "It seems that some legends are not groundless!"

"If you believe that people are marine creatures, it's not just hearsay. When it comes to hearing, people's ears can also prove that people are marine creatures!" Professor Naduo continued, "Inside the human ear, there are three semicircular canals that are perpendicular to each other. When the human body is unbalanced, the semicircular canals generate a balance pulse and stimulate corresponding reflex actions through the balance center to restore the balance of the human body. As for why there are not two or four semicircular canals, but happen to be three? The general inference is that because people live in three-dimensional space, they can have front and back, left and right, and up and down There are three mutually perpendicular semicircular canals to fully monitor, just like the three sides of any corner of a cube, determine each other's position to maintain relative stability. "

"There's nothing wrong with that?"

"However, according to the theory of species evolution, everything in any creature is used in advance and discarded. What is used more is bound to develop, and what is used less is bound to degenerate. For human beings who have lived on land for a long time, front, back, left and right are important concepts. Up and down, it seems to be of little use. The semicircular canal in human ears, which deals with the balance between up and down, does not show much regression We assume that human beings live in the ocean. In addition to the front, back, left and right, we need to accurately judge our relative position and distance from the seabed and the sea at any time, don't we? "

"Then why should we come to land? How broad the underwater world is... And how romantic it is!" Song Xiaojia is a little dissatisfied with his ancestors. If not, he may also be a standard mermaid!

"This is the answer we work hard to find. If human beings once lived in the sea, the ocean, which accounts for 70.8% of the earth's surface area, has the largest living space, warm environment and inexhaustible food resources. Why did human beings suddenly abandon such abundant conditions, land from the ocean and enter the next round of evolution?"

"Yes, it doesn't make sense!"

"Therefore, we believe that human landing may not be the result of natural selection!"

"You mean that human beings chose it?"

"Yes," Professor Naduo leaned over, took the crystal skull from Hao Zhi's bedside table and held it in his hand to show him. The skull is very similar to the human skull in Hao Zhi's impression, but it has a narrower back brain and a longer one, which is more like a different shape in the film!

"I mean, this is not only the result of human self-choice, but also the result of some human subjective choice! Our ancestors, for some unknown reason, chose to land on the earth and become the present human..."

"In the sea, there may be another human being!" Hao Zhi stared at the crystal skull as if he saw another strange world. "This is what they left behind?"

The professor smiled and guessed right