I've noticed some weird behavior from one of my ball pythons. He eats F/T prey, and after he "kills" it and starts to swallow, he will roll onto his back. He'll stay this way until the meal has completely gone down, and will eventually roll back over at his leisure.

It scared me the first time I saw it. I thought something had gone horribly wrong, so I opened the tub to check on him, but he reacted normally to me. He does this every time he eats. Why in the heck is that? The others will sometimes stretch out and up to help it go down, but going completely belly up from head to toe is just too weird...