toxicity+water

most popular fresh
http://www.newscientist.com/blog/invention/2006/07/firefly-fish.html

Firefly fish websnapr

More fun with gene splicing! Add firefly DNA to zebra fish, to make creatures that will glow if lowered into polluted water. Weird but true.
>30 days ago by PaulRaven, 1 User, more info save