What is a double yolk egg? How are they formed?
A double yolk occurs in an egg when a chicken releases two yolks into the same shell. Double yolks are usually produced by young chickens. Their reproductive systems have not fully matured, and they periodically release two yolks instead of one. These eggs are perfectly safe to eat, and are said to bring good luck when you find them. In fact, you may occasionally find an egg with three or even four yolks – if you’re lucky!