Strange title? Basically, a few days ago we got a dead rat in our ceiling, which is covered in insulation. Took a while to find it, but it got me thinking, how would you detect a dead rat body? If it recently died, I first thought you could use thermal imaging (aside from the expensive aspect), but then I realized that the insulation would reflect the heat of the body and make it difficult to pinpoint. Trying to track gases with some sort of electronic nose is pretty expensive and difficult. ANy ideas on this? It's not really something important, but I was just wondering.