Every time a Mixed Martial Artist enters the Octagon a learning experience is about to unfold. Not only do the involved individuals gain a certain level of knowledge based on the bout, but those watching the action exit the effort with a new understanding of what each fighter has to offer. UFC 165 was no different in that regard with plenty of information being dispatched, some of it eye-opening and some simply affirmation of already-established assertions. (Photos by USA Today Sports Images)