I actually did a report about this my freshman year of college.
Answer: the egg came first.
Why: Evolution. Animals that lay eggs have existed long before chickens. Chickens existing is the result of a mutation from one species of animal (I believe some kind of jungle fowl from over 10,000 years ago) and the domestication from humans.
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I wanna say chicken cause how will an egg exist if there is no parent to produce it but the question didn't specify if the egg is a chicken egg or a different egg. Chicken didn't exist million years ago but eggs from different animals that do so the answer is the egg ig 1 reply
