The theory of evolution is one of mankind’s great discoveries, but it has imperfections. Let’s take a look at the timetable of human origins based on the theory of evolution: Australopithecus: lived 8 million to 14 million years ago; Australopithecus : lived between 900,000 and 4 million years ago; ape man: lived between 200,000 and 1.2 million years ago.

There are two blank periods here: a gap of 4 million years between Australopithecus and Australopithecus, and a gap of 200,000 years between Australopithecus and ape man. The so-called "blank period" means that no fossils from this period have been found.

Some scholars have proposed a new theory to explain the fossil blanks during this period. This theory is the "sea ape" theory.

In 1960, the British anthropologist Alister Hardy proposed that during the fossil blank period, human ancestors did not live on land, but in the ocean. In the history of human evolution, there are hundreds of Thousands of years of aquatic sea ape stage. Hardy proposed: Geological history shows that 4 to 8 million years ago, large areas in eastern and northern Africa were submerged by sea water, forcing some ancient apes to live in the sea and evolve into sea apes. Millions of years later, the seawater receded, and the sea apes that had adapted to life in the water returned to land. The theory of sea ape is proposed based on many physiological characteristics of humans. These characteristics are not found in other terrestrial primates, but they are also present in water mammals such as seals and dolphins.

Hardy listed many differences between humans and apes, most of which were related to water. For example, apes hate water, but human babies can adapt to water almost as soon as they are born, and swimming is the only safe sport that pregnant women can do during pregnancy. Apes do not shed tears, but dolphins and other marine mammals (such as dugongs, or "mermaids") do. Humans are the only primates that can express certain emotions through salty tears, which may be related to humans' early experiences in the ocean. From the perspective of body structure, most of the human body is smooth, just like marine mammals. Only the head has hair. This may be related to the fact that the head is above the water when swimming, just like a "mermaid"; humans and dolphins There is subcutaneous fat, but apes do not; the human spine can bend and is suitable for water sports, but the spine of apes cannot bend backward. Humans like to eat fish, shells, seaweed and other aquatic creatures, but apes do not. The most striking thing is that mating between male apes and female apes occurs on their backs, while in most marine mammals, mating occurs face to face. What's interesting is that when dolphins give birth, just like humans, the dolphins who act as "midwives" greet the newborns with their "hands", which is different from apes. Based on this characteristic, Hardy concluded that humans evolved from marine mammals. Those who came ashore became "human beings", while those who did not come ashore were called "sea monsters".

Human beings also have no sense of salt intake. For example, some Indian tribes living in America are born with an aversion to salt. In Japan and some Western countries, people consume 15 to 20 times more salt than is healthy, reaching the point of harming the cardiovascular system. Humans do not have the ability to finely regulate salt intake like other terrestrial mammals. Lack of salt in the body will not cause cravings, and excessive salt intake cannot be controlled by oneself. This is different from living in salt-rich water in the ocean. Similar to beasts.

Human physiological responses to diving are also very convincing. When a person dives, a phenomenon called "diving response" occurs in the body. When a person dives into the water, his muscles contract, blood flow in the arteries and blood vessels throughout his body decreases, his breathing stops, and his heartbeat slows down. At this time, the blood that is still full of oxygen is no longer input to the skin tissue, bones, muscles and other organs, but is all concentrated on the brain and heart, the most important body centers for maintaining life. This phenomenon is very similar to the diving response of aquatic animals such as seals.

In fact, this also provides new evidence for the argument that "human beings evolved from the ocean".

Can this fill the "gap period"?

Humans do have many traits that are inconsistent with other terrestrial primates, and these traits are only found in aquatic organisms. Isn't it possible to obtain these characteristics through other means besides going to the sea? Therefore, some scientists believe that these characteristics are passed on to humans by other aquatic organisms. Organisms are formed by the combination of two or more species. Species It is the product of "hybridization".

Perhaps human ancestors did not experience the stage of going to the sea. A more reasonable explanation for this 4 million-year fossil gap is that genetic recombination occurred between ancient apes and marine organisms, resulting in the creation of Australopithecus 4 million years ago. The time required for the combination to produce new species is very short, so short that it can be ignored compared to geological time. New species can be formed in a dozen or even several generations, so it can be said that there are no fossils in the transitional stage. This can not only explain the blank fossils, but also explain why humans have some events. That is to say, humans are the inevitable result of the combination, just like the biological landing event. Before landing, the lungs have been produced to prepare for the landing.

A human-faced carp was discovered in Japan. Its head looks like a human face, with eyes, a nose, and a mouth. This kind of human-faced carp is a type of koi, there are about 10 of them, and it has been listed as a protected animal. This example may not explain anything, and no definite conclusion can be made yet, but it is very likely that it is caused by the acceptance of certain human genes.

Humans have two ancestors: one is an ancient ape, and the other is a marine creature. Of course, the statement about the composite origin of human beings' dual ancestors is only a hypothesis, and there is no absolute evidence yet.