A red panda looks around two mirrors equipped with small cameras at The Knoxville Zoo Feb. 29, 2012. Holes were drilled in the mirrors to allow the cameras, an iPhone 4 and a GoPro Hero 2, to record the animals as they looked at their reflections. (ADAM BRIMER/NEWS SENTINEL)
Knoxville Zoo animals react to seeing their reflection in mirrors. The mirrors had an iPhone 4 and a GoPro Hero 2 camera mounted to the back of them to capture the reactions. Photos in this gallery were made with the iPhone 4, iPhone 3Gs, GoPro Hero 2 and Nikon D3s.