the egg, thats because evolution from another creature(probably a dino) to chicken took place in the egg.
some other creature >lays egg> evolution takes place within the egg >results on a chicken being born when the egg hatches.
i thought every1 knew this :6 .....i guess common sense is not so common after all JKJK
btw, i just thought of something, y is it called "common sense" when its not so common :lol:
do u really need us to answer this one??
just use ur imagination....
the glass is at 50%