I have a question who can? Is it the chicken that came first or the egg that came first

The chicken or the egg.

The chicken-and-egg question is a question that has been debated for a long time and there has been no clear answer. In fact, the appearance of eggs was much earlier than the appearance of chickens, because as early as 280 million years ago in the Permian, reptiles appeared, and reptiles (such as crocodiles, dinosaurs, etc.) would lay eggs, and birds appeared in the Jurassic period 180 million years ago, and chickens appeared even later, but the question about "chicken or egg" is actually asked who comes first and who comes first, chicken or egg.

Chickens lay eggs, eggs hatch chickens, if you say that chickens appear first, then "how can no laying hens hatch"? If you say that the eggs appear first, you will encounter the problem of "who lays the eggs without the chicken", which is really confusing.

According to evolutionary point of view, there is no question of who comes first and who comes after chickens and eggs. As a species in the class of birds, chickens are differentiated from primitive birds, and eggs are the fertilized eggs of chickens (referring to eggs that can breed chicks), and in the long process of the formation of chickens, they have always been a bridge connecting the generations in the evolution of "primitive birds-chickens". In the formation process of chickens, there are three factors:

i.e. variation, heredity, natural selection. "Chickens" lay eggs (they can't be called chickens when they were more primitive), and eggs give birth to "chickens", which are not exactly the same between the two generations, and there are always differences in the offspring born to the same parent. A "chicken" can lay many eggs, but not all of them end up as adult chickens.

In the struggle for survival, individuals with favorable mutations get the best chance to preserve themselves, and the advantages and disadvantages are determined by nature, and chickens are formed precisely because nature gradually retains their good running. Variation characteristics such as more ground activities and poor flight ability, and differentiated from primitive birds. Obviously, heredity plays a role in maintaining and consolidating variation, which accumulates through heredity.

After a long-term, generational process of "chicken" to egg and egg to "chicken", under the action of natural selection, the variation of species is accumulated in a directional manner, resulting in the differentiation of species and the formation of new species, and the "chicken" slowly evolves and the egg also evolves.

The first bird, the bird evolved into the chicken, the first chicken laid the first egg!

First there were chickens. Because eggs are definitely laid by chickens.

But chickens don't have to be egg-hatched.

It can also be evolutionary.

Beware of deleted questions.

It doesn't matter if he has chickens and eggs first, as long as he can eat them!

You add points to 100 and I can give you satisfaction, really.

Men or women?

The chicken or the egg. It is the ultimate philosophical and scientific mystery that lasts for hundreds of years. Now, with the help of advanced computing technology, British scientists have finally unraveled the mystery – and the answer is that there is a chicken before an egg.

Scientists at two universities in the UK have found that eggs can only be formed under the catalysis of a chemical that only exists in the ovaries of chickens, so chickens lay eggs first, and then eggs lay chickens. Scientists also claim that the solution to this problem could help in the development of new materials.

Scientists at the University of Sheffield and the University of Warwick used a supercomputer to "amplify" the egg-forming process. The supercomputer, called "Hector", was located in Edinburgh. Researchers have found that the structure of eggs depends on a protein found in the hen's ovaries, so eggs are only present when the hen is in the body.

This protein, called OC-17, is a catalyst that accelerates the development of eggshells, which are indispensable for protecting the yolk and egg whites and allowing the embryo to fully develop inside. This protein converts calcium carbonate into the calcite crystals that make up the eggshell.

The study found that without OC-17 protein, the outer part of the egg could not crystallize, forming an eggshell. Calcite crystals are found inside many bones and eggshells, but hens form calcite crystals faster than any species – producing 6 grams of eggshells every 24 hours. Therefore, the conclusion of this authoritative study so far is that there are chickens first, and then there are eggs.

The "hybrid theory" also proves that there were chickens first: this view is a variation from the "domestication theory", but they believe that the current chickens are the product of the crossbreeding of different species of chickens, that is, the chickens were crossed, and then there were the eggs that people eat today. Some evolutionary argues that there is no question of whether eggs lay chickens or chickens lay eggs, because the early members of a species, whether chickens or other organisms, are descendants of another similar species.

Therefore, the chicken or the egg is actually an evolutionary or mutated problem, and it is a problem of the emergence of a new species.

Landlord, you can do it yourself, I just want to give you this answer just to tell you that there is no unified answer until now. The results vary from place to place, and you may be able to participate in the research, but I believe that one day an authoritative answer will be revealed.

Chinese paleontologists from 100 million years ago"Caged spine"Fossilized embryos have been found to have regular cell migration and recombination during embryonic development, which means that at some point in history, a species that resembles a chicken, but is not a chicken, has produced its first "egg" because of a genetic mutation, and therefore for a single individual chicken, it is a chicken that has an egg and then a chicken.

If you are a wise person, you must know the answer "there was a chicken first". If it's more serious. Explain that you still need to learn.

Existing moms have children again, so.

First there are chickens, then there are eggs! If there were eggs first, then there would be no chickens in the world, because if there were eggs and no chickens, there would be no one to hatch eggs!

From a scientific point of view, we start with the first life on Earth, and the first life on Earth should be infinitely close to the way bacteria or viruses reproduce.

Did the chicken come first or the egg in the world? How can there be eggs without chickens? But how can there be chickens without eggs? This is a question that has been debated for a long time, and now scientists have finally found the answer.

If it is an egg, it must be a chicken first, if it is not an egg, it is an egg first, and the grandfather of the chicken has a genetic mutation after the egg, and then hatches into a chicken.

I guess there was a chicken-like bird first, and the eggs laid by this bird, one of which became the approximate appearance of the chicken's ancestors, and then slowly and slowly became the appearance of the chicken, so it's not easy to say whether there was a chicken or an egg first, just let me say, even if it was a chicken. Because only on the premise of having a chicken, the eggs it lays can be called eggs, otherwise they are called bird eggs. You say, don't you?

Chickens are transformed from mammals and evolved into oviparous species in their endemic environment.

Eggs, eggs, chickens first, eggs ...... laterOtherwise, why don't you call it a layer......

If there is no chicken, there will be eggs, and if there are no eggs, there will be chickens, so they all produce dripping at the same time.

To be reasonable, there should be chickens first, and chickens evolved from species to regenerate eggs.

Take off your pants and see the chicken or the egg first (funny).

It should have been chickens first, because animals evolved from single organisms.

It must be the chickens that came first, and if the eggs came first, who would hatch the eggs?

Do you think it came first, the chicken or the egg?

It's right to say that there are chickens first, and it's not bad to say that there are eggs...

Men or women?