English: Snakes, having lost their front and hind limbs in the evolution process, slither by arching and flexing their long bodies. To glide forward, they bend in waves from side to side; their bodies assume a series of S-shaped loops to push themselves against the ground. The skull (maxilla) of the many-banded krait is articulated and kinetic. A quadrate bone connects the upper and lower jaws, allowing it to swallow prey many times its size.