National Geographic Zebra Illusion is another great photo taken by National Geographic. When first viewed the photo appears to be of a heard of black stallions running through a field. Upon clocer inspection the black stallions are actually giant shadows of the zebra, with the zebra being the little striped stubs under the stallions feet. This picture is really similar to another one previously posted from national geographic of a similar effect with camels. See the national geographic camels photo. as always keep submitting these amazing illusions.