The snake's jaw is a complex structure. Contrary to the popular belief that snakes can dislocate their jaws, they have an extremely flexible lower jaw, the two halves of which are not rigidly attached, and numerous other joints in the skull, which allow the snake to open its mouth wide enough to swallow prey whole, even if it is larger in diameter than the snake itself. For example, the African egg-eating snake has flexible jaws adapted for eating eggs much larger than the diameter of its head. This snake has no teeth, but does have bony protrusions on the inside edge of its spine, which it uses to break the shell when eating eggs.
the snake's jaw is a complex structure contrary to the popular belief that snakes can dislocate their jaws they have an extremely flexible lower jaw the two halves of which are not rigidly attached and numerous other joints in the skull which allow the snake to open its mouth wide enough to swallow prey whole even if it is larger in diameter than the snake itself for example the african egg-eating snake has flexible jaws adapted for eating eggs much larger than the diameter of its head this snake has no teeth but does have bony protrusions on the inside edge of its spine which it uses to break the shell when eating eggs