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Egg-eating snakes are a small group of snakes whose diet consistsmakescompromisescontains consists only of eggs. Some eat only bird's eggs, which they have to swageswalloweathave swallow whole, as the snake has no teeth. Instead, these snakes have spines that stick out from the backbone. The spines crack the egg open as it runwalksflowspasses passes through the throat. Once the egg is punctured, muscles in the snake's body work in waves to squeeze out the contents, which then move down into the stomach.