That’s not mysterious. It’s one of the methods snakes use to move forward across terrain that doesn’t have things to push sideways off of when they slither. Everyone knows this. Neil knows this. He’s just too busy being an ass to remember that he knows it.
Sand worms have pulsating segments. Sure snakes slither but they can also move forward by pulsing. This isn’t some impossible thing.
Or maybe this snake doesn’t exist?
Mysterious snake moves in a straight line
That’s not mysterious. It’s one of the methods snakes use to move forward across terrain that doesn’t have things to push sideways off of when they slither. Everyone knows this. Neil knows this. He’s just too busy being an ass to remember that he knows it.