Most religions say animals were created, by a Creator (ie: god) and thus the chicken came first.
Evolution, and thus science, says that an almost-chicken animal would have had a mutated 'child' - laid that egg, and the mutated-almost-chicken (thus now a chicken) hatches from the egg. Horrificly simplified but that'd be the jist of it. So the egg came first.
So it's a question of religion or science?
