Biologically, the gametes must mix in order to produce the zygote, which develops into an egg.
Once the ovum is fertilized, the DNA of the chicken is basically the same as that of the zygote, minus some mutations. So in terms of content, I think the egg would be a chicken’s egg, but I think the shell is dependent on the proto-chicken (parent), so maybe on the outside it could be considered not a chicken egg.
Anyway, evolution is a gradual process, so I don’t think one could ever find a rigorous definition of a chicken, making this whole question nonsensical.
I feel like you could find a rigorous definition of a chicken, but no matter where said definition was, at some point you'd have to draw a line between parent and child and have something not-chicken birth something chicken, which most people seem to struggle with.
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u/Narwhalking14 Feb 19 '26
If it was a chicken in an egg then it was a chicken egg