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:Stretchy CatFirefallReflective birdA sorrowful rockPaperthin BuildingNext to the boatThis PatioCat defies gravity
