[ORIGINAL AIR DATE: 6/4/2015] What is nature’s version of human clones? Identical Twins! But, how do they happen? Are they really THAT identical? Di you guys know that the Sklar Brothers once learned that their identities may have been switched in infancy, and neither of them could tell? Kyle explores the science of sameness on this episode of Because Science, airing for the first time on the Because Science Channel.