The Cambrian biological explosion has always belonged to the biological world? Unsolved mystery? First, before the Cambrian, there was almost no life on the earth, but after the Cambrian, there was a big explosion of biological species on the earth, and various new species appeared on the earth one after another.
According to Darwin's view, it takes a long time for organisms to evolve into new species, but Cambrian can evolve so many new species in just 20 million to 25 million years, so Darwin wrote gloomily in the Origin of Species: This matter has not been explained clearly so far. So, maybe some people can use this case to refute my evolutionary view? .
Even in today's more advanced science, the Cambrian explosion is still a big problem that puzzles the scientific community.
A new explanation of the CAMBRIAN explosion of life
There are many explanations about the CAMBRIAN life explosion. For example, in Cambrian, the climate is changeable, and organisms need to evolve constantly. Others think that there was a lot of life before, but the individual was too small to be discovered.
However, the above explanations have their own defects and have not been widely recognized at present.
In 20 18, a research team composed of 30 scientists pointed out that the Cambrian explosion of life may be due to the earth's capture of a comet carrying a large number of cellular organisms.
The birth of life is not complicated. As long as there are liquid water and hot springs on the seabed, there may be life. For example, scientists predict that Europa and Enceladus may have life.
So in the universe, even in the solar system, the earth is not the only place where life is born, and there are relatively few lives on other planets. Even if you arrive at that planet by spaceship, you won't see any of them.
Also, when primitive life was born, the structure of life was always incomplete, and even genes might run from one life to another, so early scientists also called the newly born life the ocean? Gene porridge? There are many wandering genes floating here. When it enters a living body, it will stay here to work, or for various reasons, it will leave this living body and continue to wander.
In CAMBRIAN, asteroids and comets crashed into the earth. Maybe these whispers carry some organic molecules and even genes from space.
These? Space genes? Wandering into life, they have formed various creatures, but they can all adapt to the environment of the earth, and the ancestors of octopus are one of them.
Is it an octopus whisper?
Scientists pointed out in the report that the genome of octopus is very complicated, with more than 33,000 protein coding genes than human beings.
Not only that, octopus's character expression is also different from that of human beings. They sacrificed the evolution of DNA and got a lot of RNA editing, so their genes can be changed, which have not been found in other close relatives of octopus.
The only explanation seems to be that the ancestors of octopus captured some wandering genes in whispers and took them for themselves, which gradually evolved into what they are today.
In fact, octopus is not the first time to come from space. In 20 15, an article published in Nature claimed that octopus is different from other animals on earth.
Scientist Smith said;
If we can communicate with octopus, it is not because we have the same history with them, nor because of blood relationship, but because nature has evolved two kinds of consciousness. Octopus is probably the smartest alien species we can get close to.
British biologist Martin Wells also suggested that octopus may be an alien creature.
All kinds of results show that some genes of octopus landed on the earth with meteorites, and the genetic material carried in meteorites was preserved for various reasons, some of which became the gene source of octopus ancestors.
However, before there is definite evidence, no scientist is sure: octopus comes from outer space.
abstract
People always think that the earth is special, and only the earth can breed life. In fact, this statement has long been abandoned by scientists, because the conditions for the birth of life are not complicated, and there may be other alien life in the solar system.
However, we still don't know whether these alien creatures have ever been to the earth and left their descendants on the earth. Maybe we can find a breakthrough from octopus. If it can be proved that some octopus genes belong to alien genes, then this may help us answer? Cambrian biological explosion? How it was formed.
That's what science is like, one link at a time. When you answer a specific question, you may have solved another puzzle by the way.