It looks like fire flies, atleast for now have a better opportunity at freedom. That is of course due to the official release of the GloFish. The New Yor Times reports that the friendly little Zebra fish has been genetically altered with a gene from sea coral which makes the fish bright red under normal light and fluorescent under ultraviolet light.
Children can now set free those fire flies they've jailed in glass jars for glass bowls of glowing fish!

(Thanks to A Million Things That Bug Me for this one)