On #WorldElephantDay, an Eadweard Muybridge animal locomotion photograph series of an elephant walking. Muybridge was famous for his motion studies throughout the late 1800s. He began his work with a photographic study of a racehorse, to determine if the horse trotted with all of its hooves off the ground. Muybridge set cameras along the edge of the race track, with the shutters set to go off as the horse passed, to see how its legs moved as it ran.
Later, Muybridge did similar locomotion studies on other wildlife (including elephants), as well as activities of human motion (like a long-jump or bike ride).
Source image courtesy of University of Southern California Libraries.