Captive elephants exhibit what biologists refer to as stereotypy, which includes rhythmic rocking, head bobbing, stepping back and forth, and pacing. Colleen Plumb traveled to over seventy zoos in the US and Europe to film this behavior, and distilled her footage into a video that weaves together dozens of captive elephants, bearing the weight of an unnatural existence in their small enclosures. She has installed guerrilla public projections...