BOB GIBBONS / SCIENCE PHOTO LIBRARY BOB GIBBONS / SCIENCE PHOTO LIBRARY
Two pairs of male (blue) and female southern damselflies, or mercury bluets, (Coenagrion mercuriale) mating in a stream. This rare damselfly is found around rivers and freshwater springs. It is threatened by habitat loss. Photographed in the New Forest, Hampshire, UK.
Model release not required. Property release not required.