pretty sure that's not quite right. It may have an iridescent 'glow' when under certain lights, like brazilian rainbow boas and retics, but snakes do not fluoresce, period. They recently developed the 'glo-fish' after extensive genetic modification, namely the insertion of jellyfish genes to produce the protein which causes them to glow under a black light, but we are years away from the same being done with terrestrial vertebrates.
