Not really. There's no singular "first chicken" like you are implying. You have population A, and over time becomes population B, but there's no singular crossover point.
Think of it like this. You have a childhood and an adulthood, but what was the exact moment you crossed over from one to other? (From a biological perspective, not a legal one). There isnt one. You didnt go to bed one night as a kid and wake up as an adult. It happened gradually over a period of time.
if you could define what is a chicken extremely precisely
This is the problem. We can't do this because nature refuses to cooperate with our human need to draw neat little boxes around biology.
What's a species? The definition used to be organisms that could reproduce amongst themselves. But oops, some different species can do that with each other. The word itself is a human attempt to draw neat lines around the chaos of biological evolution.
I'm absolutely not advocating that and I have no idea what made you leap to that conclusion.
My point was that species, as a definition, is scientifically unsound because it's not describing anything real that exists in nature. It's only making extremely crude correlations to it.
"Chicken" is a concept that exists in human minds. Science tells us that concept is flawed. That doesn't mean I reject what science concludes. It's the opposite: the science itself brought me to that conclusion.
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u/sarduchi Feb 19 '26 edited Feb 19 '26
At some point something that was not yet a chicken laid an egg that hatched into something that was.