If it's real, which I guess I have to accept, then what we have here is stupendous evidence for evolution.
It's a good thing Moose got this thread under control at the start by putting it on Summation Mode because otherwise it could only become a debate in which the creos try to come up with other examples of gear-like adaptations magicked into existence by an invisible sky-wizard to prove that this one was created by God.
I wonder if they could possibly come up with any?