Hehe, I like how all the way at the bottom they mention the fact the bee's glow in the dark now. If that's not a significant mark against artificial foodstuffs I don't know what is :)
http://en.wikipedia.org/wiki/Glowworm http://www.springbrook.info/glow_worms/about_worms.htm http://rainforest-australia.com/Luminous_fungi.htm http://en.wikipedia.org/wiki/Firefly