It is an egg that has not fully hatched, or died before breaking the shell, collectively known as the hairy egg As the name implies: half-hatched eggs, the embryo outside a layer of hair (fetal hair of the chick chick)
Now there are more delicious hairy egg practices, such as charcoal grilled hairy eggs
Some people look at the hairy half-hatched chick will be a little bit nauseous, especially the girls