I had an interesting conversation with a co-worker today. She had overheard a visitor asking if the penguins were really studying us, or simply admiring their own reflections on the other side. Can they really see us? Or is it like a mirror on their side? The gentoos and macaronis really are spending time looking out at you....face to beak. Want to test this? When one of the penguins swims up to the window try wiggling your finger in front of their beak and watch what happens. Make a fist and hold your hand steady. Now point at the penguin and move your index finger up and down. More often than not, the penguin will begin to nod it's head up and down. Another way to prove all of the windows at the Tennessee Aquarium are see-through both ways is to wave to a diver. Or watch the divers playing rock, paper, scissors with visiting children. If the windows were like mirrors on the inside, the divers would tie themselves every game. (Diver to himself: "I don't know who this diver is, but he's really good at this game. Almost as if he knows my every move.") If chickens at the county fair can play tic-tac-toe, imagine how much fun it would be if gentoos or macaronis had fingers. Then you could play Penguins' Rock, paper, scissors!