PHOTOS: When Animals Attack

Roy Horn, left, 59, of the performing duo Siegfried & Roy, poses with a white tiger. Horn was mauled and critically injured by a white tiger while performing on stage at the Mirage Resort, Oct. 3, 2003, in Las Vegas. Horn was taken to University Medical Center in Las Vegas for surgery. The attack occurred on his birthday. (Siegfried & Roy/The Mirage Resort via Getty )