How are the two halves of a snake's lower jaw connected during feeding?

Answer

By a highly elastic ligament

Snakes possess kinetic skulls where the bones are loosely connected, a critical adaptation for their feeding mechanism. Specifically concerning the lower jaw, the two halves are not fused at the chin joint as they are in many other vertebrates. Instead, they are joined by a highly elastic ligament. This anatomical structure allows the two halves of the lower jaw to spread widely and move independently of each other, enabling the snake to effectively unhinge its jaws and swallow prey items that are substantially larger than its own head.

How are the two halves of a snake's lower jaw connected during feeding?
anatomyreptilecharacteristicsnake