I have been watching that story on the news and net. It's not a protein they altered, it's the genes. They took a gene from a glowing sea anemone and spliced it into the zebra fish. They've also created mice that glow in the dark by similar means. What next? Glowing ferrets? If they could just get them to "meow", people in CA could pass them off as real short cats! (Ever seen a cat called a "munchkin"?) Gary [Posted in FML issue 4353]