Science in today's modern world can be very tedious in that scientists tend to specialize in very specific areas and may not leave that little sub-area their entire career.
From 3QuarksDaily, we see a scientist studying how humans utilize their sense of smell. Its a rather ingenious experiment, actually. He found, among other things, that humans smell odors similarly to dogs. Also, we use both nostrils which suggests a stereo effect that means when one nostril is blocked, our smell performance degrades. Anyway, check it out.