Common pool frog, water frog, rana esculenta, spring, in pond, oetwil am see, zuerich, switzerland

vertebrates water wasser horizontals green see blooded animals spring wetland amphibians horizontal frog anura swimming switzerland wildlife amphibious pond frog wasserfrosch zuerich oetwil frosch cold frogs switzerland wetlands frog amphibia amphibian teichfrosch insectivores zoology aquatic rana insectivora vertebrate pool habitat ranidae insectivore teich swiss developed countries ponds ectotherms tailless water developed country european esculenta ectotherm cold blooded fauna ectothermic animal europe 1030 46270