Which came first — The chicken or the egg ?

It's a question that perplexed humanity from the early Greeks to the 21st century

And we're still craving to know which comes first, chicken or egg. The question is simple if we take it literally

Animals that lay eggs existed before the appearance of the chicken, so technically the egg came before the chicken

But the question, then, is best formulated

So if you give birth to a chicken from an egg, where does the egg come from?

Another chicken that's supposed to be also came from an egg

So which came first?

On the other hand, the Chicken Research Group has discovered that the primary protein for the formation of chicken eggs called OV7 is found only in chicken ovaries, without which the crust of chicken eggs cannot be formed

So technically without a chicken, you can't have a chicken egg

But it all depends on the nature and definition of a chicken egg in the first place After all is an egg chicken egg laid by a chicken or an egg that simply contains chicken It's obvious that OV7 carrying chicken has to come from somewhere

But for example, if an elephant lays an egg, an elephant hatches another egg, the egg from which the elephant hatches, is it an elephant egg or a lion egg

That leads to the other side of the story

The team that studies the egg during reproduction transmits two organisms, their genetic information in the form of DNA, but the replication of this DNA is not 100% accurate, and often results in slight changes of the new organism: these small mutations in DNA over thousands of generations create new species, but these genetic mutations must occur in the protocell, so a creature that looks a lot like a chicken

We could call it primitive chicken

And because a small genetic mutation created the first chicken that grew in an egg, so the egg came first, well then the team that studies the chicken might argue

That this was simply a chicken growing inside a primitive hen's egg, and yet no single mutation can really form a new species, even though we humans like to classify all creatures into different groups and names, and that depends on how things are happening right now and not how they were millions of years ago. The evolutionary process is so gradual that the birth of a primitive chicken to a chicken can't be considered as a new species right now

Like the interaction between dogs and wolves and domestication

It was not the beginning that a lupus had a dog, but instead certain features of selective pressures emerged, such as selecting wolves that were not afraid of humans or those that were less aggressive over several generations

We can see huge differences in genetics and behavioral traits, so where does this leave us?

We were left with two scenarios

The first one is that the eggs gradually led to the creation of chickens and the chickens produced the eggs

And in one egg, there was a mutation that caused a slight change in the selective advantage, and this was ultimately the first chicken, and then I went on to put the chicken eggs, in this case, the eggs came technically first

Or we have chickens that produce chicken eggs, and that's how the chicken came first