You are a photographer. You leave your base camp and walk one mile South. There is nothing of interest there. So you walk one mile East and see a family of bears. You take lots of pictures and fill up your memory cards. Then you walk one mile North, and you are back at your base camp where you started. So, you've walked one mile South, one mile East, and one mile North, and you are back where you started. What color are the bears?