2012/08/04: I was cleaning the reptile enclosures at The Wildlife Center* today when Basil the bull snake started shedding. I had the iPhone handy and was able to get a picture of how the process works.
Apologies to those who find this sort of thing more gross than fascinating.
*2016/04/12: The Wildlife Center is now New Mexico Wildlife Center:
http://thewildlifecenter.org
https://nmwceducation.org
[taxonomy:binomial=pituophis catenifer]
[taxonomy:common=bull snake]
Description: English: Copper-bellied Water Snake (Nerodia erythrogaster) filmed in Muscatatuck National Wildlife Refuge, Indiana, USA. Date: circa 2011. Source: http://digitalmedia.fws.gov/cdm/singleitem/collection/video/id/1582/rec/7. Author: U.S. Fish and Wildlife Service National Conservation Training Center.