Which came first?

So, which came first, the chicken or the egg? The easy answer would be the egg, because of, you know, dinosaurs and stuff. But assuming we're talking about chicken eggs, the real answer depends on how one defines a chicken egg, either by A, an egg that came out of a chicken's vagina, or B, an egg that has the potential to hatch a baby chicken or rooster. If we consider the first creature to ever walk this planet that was evolved enough to be classified as a chicken - let's call her Dee - then according definition A the first real chicken egg would be the first egg to ever come out of Dee's vagina, and so the first egg came after Dee, while according to definition B the first real chicken egg was the one that Dee hatched out of, and so the first egg came before Dee, the first chicken. So, which came first, the chicken or the egg? The answer is a resounding YES. Now here is a silly animation, in which a humble egg turns into an even humbler Benny!