17 Things you should know about DNA (Infographic). It's the basic building block of all life but what do you really know about it? See how you compare to other humans and crack the genetic code with this informative infographic.
In these two men had the same name, Will/William West, were sentenced to the same prison and look like twins. However, they were not related but are the reason that fingerprints are now used when fighting crime. (quote from CDAN)