Here's a quick video on why snakes (and other reptilians) evolved scales, including footage of some pretty sweet looking scaleless snakes. At least watch the video up to around 3:23, then maybe consider some of the other videos on SnakeBytesTV.
Disclaimer: I almost didn't post this video because of some aversive racism that sneaks in at the end -- but those scaleless snakes are just too awesome to not share! While I love the SnakeBytesTV videos and Brian seems like a stand-up guy, I think he made a big mistake showcasing that comment. Was that really the best comment he could dig up? If "mexican" were replaced with "black" would he still have aired it? Replace "mexican" with "white" and you might see how pointless it is to even mention race there in the first place.
Anyway, if the race thing has piqued your interest, you might find more to read elsewhere in the blogosphere.