Burger King has come up with a pretty cool way to advertise their burgers...showing a mold Whopper.
The idea is they their burgers actually WILL decay and get moldy over time, unlike the burgers from McDonald's. Have you ever seen that? You could get a burger from McD's, and 5 years later it will look exactly the same. It will be as hard as a hockey puck, but will look the same.
I'll probably still eat there though. I can't quit those fries.