Thanks for the links, it appears dogs can only distingush between shades of blue and gray? That is really something, but according to my Ex-coworker her dog knew the diffrence between a black and white person. I am going to send this link to my job email. I am going to give it to another coworker that still talks to the lady I ran into. I am going to make sure he passes this on to her as she should remember our conversation as to why I am passing it on to her. This will be my morning topic at the job on Tuesday morning.