Does Muscle Weigh More Than Fat?

My friend posted a link on her facebook with this article about the subject "muscle weighs more than fat"? It intrigued me because I'm always hearing about those pounds you may have gained, people have equated it to being muscle. This isn't always the case. Usually, it's just fat. It's highly unlikely that the hardest of gym fanatics can gain three pounds of muscle in less than a week. I think people need to understand that your body weight is bound to fluctuate a pound or two, and don't dismiss that as being "just muscle". After awhile, you're gonna end up look a lot more flabby and that's not healthy, nor sexy. A pound of muscle and a pound of fat is one in the same. The key difference between the two is density. If you look at five pounds of muscle and five pounds of fat side by side, the fat takes up more volume, or space, than the muscle. As you're training, you want that lean look of muscle. That's what I'm working towards. I have the muscles and the strength, but i still gotta cut through the stubborn fat. It's not trying to go anywhere. My weight tends to fluctuate three or four pounds. I know it's fat because of the food that I eat. A whole bag of cookies wil not build muscle, I'm sorry. My main point is that you should be conscious of what you're putting into your body amd just to take care of yourself. I'm no science major, so some of this may not make much sense, but bear with me. Also, AVOID THE SCALE. It's the worst thing to have around you when you're on a diet/exercise regimen. You play head games with yourself and that brings negative perceptions of self. I've been there, so I know what it can do to you. Just be consistent with your workouts and proper eating, and you'll have lean, fit look in no time.