What came first?

the egg :D bc there might have been an animal that is related to chickens and when that animal laid an egg, there may have been a mutation and boom, chicken. And ig chickens were able to survive better (due to artificial selection?) so they’re still around today :) (im not 100% sure tbh but its what I remember from bio)   reply

I think sea creatures came first, and then evolution came and became land creatures, then evolution and adaptation became dinosaurs. I think??   reply

egg. eggs existed before chickens. chickens were probably just some other animal that evolved into a chicken, or mutated into a chicken. in any case, egg.   reply