Guy Edwardes / Marsh Frog (Pelophylax ridibundus) vocalising with bokeh effect in the background, Danube Wetlands, Bulgaria

Guy Edwardes / Marsh Frog (Pelophylax ridibundus) vocalising with bokeh effect in the background, Danube Wetlands, Bulgaria

Theo Bosboom / Edible frog (Pelophylax k. esculentus) catching a common blue damselfly (Enallagma cyathigerum) with its tongue with pair mating on stem above, Hondenven, Tubbergen, The Netherlands, July.

Laurent Geslin / European edible frog (Rana esculenta) in urban park, next to pond with buildings in distance, Grenoble, France, May.

Wild Wonders of Europe / Lundgren / Pool Frog (Pelophylax lessonae) viewed from below while swimming, underwater around Crisan village, Danube Delta, Romania, June.

Wild Wonders of Europe / Lundgren / Pool frog (Pelophylax lessonae) reflected in waters surface at night, Danube Delta, Romania, June.

Stefan Huwiler / Edible Frogs (Rana esculenta) on log in water. Switzerland, Europe, July.

Stefan Huwiler / Three Edible Frogs (Rana esculenta) on a log in water. Switzerland, Europe, July.

Edwin Giesbers / European edible frog {Rana esculenta} beside Water Lily flower {Nymphaea alba} the Netherlands

Edwin Giesbers / Green / European edible frog {Rana esculenta} in water, the Netherlands

Wild Wonders of Europe / della Ferrera / Common european frogs (Pelophylax kl. esculentus) the hybrid of the Pool frog (Pelophylax lessonae) and the Marsh frog (Pelophylax ridibundus) on tree trunk submersed in water, near Muilovcica village...

Wild Wonders of Europe / Máté / European edible frog (Rana esculenta) close-up of head showing eye, Prypiat area, Belarus, June 2009