#570 Egg-eating Snakes

Egg-eating snakes are a small group of snakes whose [1] consists only of eggs. Some eat only small eggs, which they have to swallow [2] , as the snake has no teeth. Instead, some other snakes eat bigger eggs, but it requires special [3] . These snakes have spines that stick [4] from the backbone. The spines crack [5] the egg as it passes through the throat.