A pic of some SMR corn snakes hatching. They poke their heads through slits in the egg that they make with their egg tooth (bubble view magnifying an egg tooth projected from the maxillary rostral bone). While absorbing their egg yolk via retracting their yolk stem, they generally maintain this body position (they will duck back into the egg if they feel threatened) for roughly 24 hours before leaving the egg--after the yolk is completely re-positioned to their stomach. It's highly recommended that you do not overly distract them from this essential function (LIMIT COMMOTION AROUND THEM) so they completely incorporate the yolk. Some snakes that leave their eggs with yolks only partially sorbed often do not survive, or are deformed through maturity.