There is a guy out there who is creating new life forms. Not making animals glow, he is making WHOLE NEW animals. Granted they are single celled, but it just shows you how simple the trick of throwing in that jellyfish gene is. I would sign up to become glow in the dark, it would be awesome. Anyhow, this scientist figured out a way to take a bacteria and a yeast and put the genetic material from one into the the membrane of the other after it had been emptied and to everyone's surprise what resulted was a new animal that was not a yeast and not a bacterium. He states he is working on more complex creations and has even mapped his own genome. Glowing mice is child's play.