Some fifteen years ago or so when the Denver zoo was going through a major renovation, there was a polar bear there, which had arrived at the zoo before a naturalistic environment was ready for it. Polar bears, by the way, are on of my favorite animals. They are very playful; they are big and graceful and do lots of nice things. The cage that it was put in temporarily was just big enough that the polar bear could take three nice, swinging steps in one direction, whirl up and around and come down and take three steps in the other direction, back and forth. The polar bear spent many, many months in that particular cage with those bars that restricted its behavior in that way. Eventually a naturalistic environment in which they could release the polar bear was built around this cage, on-site. When it was finally completed, the cage was removed from around the polar bear. Guess what happened?
... And guess how man of those students at the university are still going down the maze, still trying to find the five-dolalr bill? They sneak in at night and run down the maze to look and see if it just might be there this time.
