This paper skeleton is one hardcore piece of origami made out of just one piece of paper. I know how hard it is to even make a simple paper airplane, so I imagine the time that went into this anatomical piece.
Marc Kirschenbaum is the man behind this papercraft skeleton. Want to try and make your own? Kirschenbaum has provided a 15-page, 93-illustration booklet that you can download from his website.
Implications - Now, I'm sure I'm not the only one who spent a fair amount of their childhood trying to replicate impressive origami creations they saw their friends make or even better ones they've seen on TV. I don't think I have the talent to make something one-eighth as cool as Marc Kirschenbaum's work, so do us both a favor and enjoy his expertise.