How did she turn her head 360? The world may never know! But it looks like now we do know how owls can do their creepy little head turning tricks. What stunned me was that we just now know. I never thought about it really. It was one of those things that made these creatures of a the night a little quirky just off enough to explain why the pre-modern world put so much supernatural oomph into owls. But we didn't know until now? I guess there really are more things in heaven and earth than are dreamt of in our philosophies, or zoologies for that matter.
BTW, if you ever have the misfortune of seeing an owl eat a rodent, you'll never look at them the same way again no matter what you know about them.