Your pillow is a lot like a toilet seat, microbially speaking

Most of us like to think that we are shielded against the elements inside the walls of our home or office buildings. This may be true for weather, but it's certainly not the case with fauna. Swarming around us at all hours of the day is what theoretical ecologist Jessica Green calls "the wildlife in the air."… » 10/22/12 6:20am 10/22/12 6:20am