関連ワード:
why does an egg have two yolks why does my egg have two yolks why does one egg have two yolks why do jumbo eggs have two yolks why do my eggs have two yolks in them why do chicken eggs have two yolks why do duck eggs have two yolks why does my chicken egg have two yolks why do eggs sometimes have two yolks why do extra large eggs have two yolks
