Which Came First? The Chicken Or the Egg

[Doc Reeves 6434]

the chicken of course. Unless the egg was a dude. Amirite

 

https://www.newscientist.com/question/came-first-chicken-egg/

Quote

Eggs come from chickens and chickens come from eggs: that’s the basis of this ancient riddle. But eggs – which are just female sex cells – evolved more than a billion years ago, whereas chickens have been around for just 10,000 years. So the riddle is easily solved…or is it?

Taken at face value, there is no doubt that the egg came before the chicken. We tend to think of eggs as the shelled orbs laid by birds from which their chicks hatch – unless we eat them first. But all sexually reproducing species make eggs (the specialised female sex cells). That’s 99.99 per cent of all eukaryotic life – meaning organisms that have cells with a nucleus, so all animals and plants, and everything but the simplest life forms.

We don’t know for sure when sex evolved but it could have been as much as 2 billion years ago, and certainly more than 1 billion. Even the specialised sort of eggs laid by birds, with their tough outer membrane, evolved more than 300 million years ago.

As for chickens, they came into being much later. They are domesticated animals, so evolved as the result of humans purposefully selecting the least aggressive wild birds and letting them breed. This seems to have happened in several places independently, starting around 10,000 years ago.

The wild ancestor of chickens is generally agreed to be a tropical bird still living in the forests of Southeast Asia called the red junglefowl –  with other junglefowl species possibly adding to the genetic mix. From these origins, humans have carried chickens around the world over the past two millennia or more.

So, eggs dramatically predate chickens. But to be fair to the spirit of the riddle, we should also consider whether a chicken’s egg predates a chicken. As humans consistently chose the tamest red junglefowls and bred them together, the genetic makeup of the resulting birds will have shifted. At some stage during this domestication process the red junglefowl (Gallus gallus) evolved into a new subspecies, Gallus gallus domesticus, AKA the chicken.

In practice, it is impossible to pinpoint the moment when this happened. But in theory, at some point two junglefowl bred and their offspring was genetically different enough from the species of its parents to be classified as a chicken. This chicken would have developed within a junglefowl egg and only produced the very first chicken’s egg on reaching maturity. Looked at this way, the chicken came first.

 

 

 

[Neonmoon 38129]

So they kicked the can down the road to junglefowl and junglefowl egg?

[RamjetFDO 10575]

[ztejas 43411]

 

[WhatTheBuck 28771]

On 5/21/2021 at 4:35 PM, Doc Reeves said:

the chicken of course. Unless the egg was a dude. Amirite

https://www.newscientist.com/question/came-first-chicken-egg/

Declares it’s the chicken, posts an article that says it’s the egg.

The article is right according to evolutionary biology, although it’s not as easy as drawing a line between parent and offspring and saying the offspring is a chicken but the parent is not. It’s not that neat and tidy. But in theory the first chicken came from an egg laid by a non-chicken parent. In practice the two generations still could’ve bred to produce viable offspring. 

[Doc Reeves 6434]

6 hours ago, WhatTheBuck said:

Declares it’s the chicken, posts an article that says it’s the egg.

The article is right according to evolutionary biology, although it’s not as easy as drawing a line between parent and offspring and saying the offspring is a chicken but the parent is not. It’s not that neat and tidy. But in theory the first chicken came from an egg laid by a non-chicken parent. In practice the two generations still could’ve bred to produce viable offspring. 

You serious, Clark?

it’s an old joke and if you don’t think it’s funny, that’s cool. If you don’t recognize it as a joke, that’s on you.

Edited June 2, 2021 by Doc Reeves

[WhatTheBuck 28771]

52 minutes ago, Doc Reeves said:

You serious, Clark?

it’s an old joke and if you don’t think it’s funny, that’s cool. If you don’t recognize it as a joke, that’s on you.

I’m familiar with the joke. I’ve been to junior high school too. It’s been made more than once in this thread. Seems like it’s better suited for a “Meathead” forum than a “Nerdz” forum. It’s the contradiction in the OP that I find stupid. 

[Doc Reeves 6434]

3 hours ago, WhatTheBuck said:

I’m familiar with the joke. I’ve been to junior high school too. It’s been made more than once in this thread. Seems like it’s better suited for a “Meathead” forum than a “Nerdz” forum. It’s the contradiction in the OP that I find stupid. 

Lol. 

glad you got that out

 

*you definitely seem like someone who would be an expert on “meathead” threads

Edited June 2, 2021 by Doc Reeves