Several animations appear below.
A horse animated by rotoscoping from Edweard Muybridge's 19th century photos. The animation consists of 8 drawings, which are "looped", i.e. repeated over and over. Artistic license has been used to achieve the cartoony look.
Original by Muybridge (not the same as above), animated.
15 frames by Muybridge, animated.
Animations of "real" objects