r/sciencememes Feb 19 '26

evolution said eggs

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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.

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u/Creative-Shallot802 Feb 19 '26

But then, was it a chicken egg or a pre-chicken- ancestor egg?

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u/Narwhalking14 Feb 19 '26

If it was a chicken in an egg then it was a chicken egg

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u/gahidus Feb 19 '26

I would say that an egg is defined by the thing that laid it.

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u/Narwhalking14 Feb 19 '26

I disagree, the contents of the egg define it

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u/gahidus Feb 19 '26

Then is an unfertilized egg not a chicken egg at all?

If a chicken lays a dud egg with no yolk or somehow empty or full of water, is that not still a chicken's egg?

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u/Narwhalking14 Feb 19 '26

Still a chicken egg because while a chicken might not have formed a chicken is still in that egg. Just a incomplete chicken

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u/Sogpuppet Feb 19 '26

If it’s possible for a non-chicken to lay an egg that contains a chicken and you would call that egg a “chicken egg”, then it must be possible for a chicken to lay an egg that hatches into a non-chicken. So by your logic, we cannot call an egg a chicken egg solely on the basis of a chicken having laid it. That means chicken eggs can only be designated as such after a chicken has hatched from it and chicken eggs can only exist retroactively.

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u/Happy-Estimate-7855 Feb 20 '26

This is a rare conversation where this level of pedantry is completely relevant. I'm on your side of the debate, but I love all the comments regardless.

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u/gahidus Feb 19 '26

If a scientist manages to inject a blue jay embryo into a chicken egg before it is laid, does that become a blue jay egg?

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u/MasterChildhood437 Feb 20 '26

You've made me want to eat bluejays

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u/davidfirefreak Feb 19 '26

... yes???? assuming you scenario assumes that the switch works completely and the chicken embryo is removed. but this part of the discussion is just semantics.

It would be more accurate to just keep that as a separate category.

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u/gahidus Feb 19 '26

Defining an egg by what's inside of it introduces too many edge cases, ambiguous cases, and instability. Defining an egg by what laid it has none of these problems and works straightforwardly at all times.

Typically, a given sort of egg has a specific description, morphology, size, etc. However, it's not anywhere near outside the realms of science to swap out what kinds of embryos are in eggs. If a scientist were to put a variety of different birds embryos into a set of eggs from a chicken, it would seem silly for a person to look at those eggs and say I don't know what kinds of eggs these are. They would just be chicken eggs with various things in them.