WILLIAM ERVIN / SCIENCE PHOTO LIBRARY WILLIAM ERVIN / SCIENCE PHOTO LIBRARY
Butterfly. View of a butterfly (family Nymphalidae) resting on earth. Nymphalidae butterflies are characterised by only having four real legs. The third pair having been reduced to tiny appendages used for cleaning. Photographed in Butterfly World, Florida, USA.
Model release not required. Property release not required.