Go on then, where did the chicken come from?
All dinosaurs and then birds laid/lay eggs afaik, therefore the chicken is either (a) a direct descendent of a creature that is not a bird, or (b) a mutation from a creature that laid eggs and evolved into a chicken.
I know what is more likely in my mind and it aint a cow giving birth to a chicken
Listen mate, alls I know is that these proper geeky scientists figured it out a couple months back and it was in the papers and everything. British scientists they were too. Basically Chickens usued to give birth some other way before this special protein was developed then they started putting them in eggs and all that. Look it up.