BOB GIBBONS / SCIENCE PHOTO LIBRARY BOB GIBBONS / SCIENCE PHOTO LIBRARY
Gavarnie blue (Plebejus pyrenaicus) butterfly mud-puddling. Gavarnie blue drinking water from the surface of mud. This behaviour, known as mud-puddling, is the way in which butterflies obtain nutrients and salts. Photographed in the Pontic Mountains, Turkey.
Model release not required. Property release not required.