By Emily Conover
Wake up, sheeple! You may think you’re in charge of your own destiny, but when exiting a crowded stadium, we’re all fairly sheeplike, following the flock and perhaps jostling a bit to get to the front. Sheep therefore make a good model to understand crowd behavior in humans. To study how the wooly ungulates move in unison, researchers videotaped flocks of sheep entering a barn door to be fed.