Migrating horses Source/credit: Beverly Joubert What am I looking at? These migrating horses are actually shadows of zebras. The stripes do work well as camouflage. However, the morning sunlight over the Makgadikgadi pans in Botswana casts long, visible shadows. More optical illusions:River in the SkyHeadless playerCollage illusion of shipCat Head180 degreesNot a brickFloating DogThe eye of the tower
