When I think of farming I think of green open fields with the sun shining down. Norman Rockwell in spades. So why are researchers at Purdue experimenting with farming in caves? It turns out there are lots of advantages to farming (or pharming in this case) in caves if you are growing your crops for a biotech company. I think these pharmers are going to have to come up with a new theme song though. I just do not think that "The pharmer in the cave" has the same ring as "The farmer in the dell".