Squirrel (Sciurus vulgaris) on tree trunk, Canton of Graubunden, Switzerland, Europe

"Landscape with snow-covered trees, Zugerberg, Canton of Zug, Switzerland, Europe"

Squirrel (Sciurus vulgaris) climbing on tree trunk, Canton of Graubunden, Switzerland, Europe

Squirrel (Sciurus vulgaris) climbing on tree trunk, Canton of Graubunden, Switzerland, Europe

"Sun rays in a snow-covered coniferous forest, Horben, Canton of Aargau, Switzerland, Europe"

"Snow-covered coniferous forest with freshly fallen snow, Horben, Canton of Aargau, Switzerland, Europe"

"Snow-covered Larch (Larix) in a fresh snow-covered landscape, Silvaplana, Engadine, Grisons, Switzerland, Europe"

"European Otter (Lutra lutra), on a tree trunk in the water, captive, Sihlwald, Switzerland, Europe"

"Snow-covered winter landscape with views of Mt Zugerberg, Rigi Kulm, Canton of Schwyz, Switzerland, Europe"

European wildcat (Felis silvestris silvestris) sitting on a tree trunk, captive, Canton of Zurich, Switzerland, Europe

"European Otter (Lutra lutra), on a tree trunk in the water, captive, Sihlwald, Switzerland, Europe"

"Autumnal coloured Larch (Larix) forest in the freshly snow-covered Val Roseg valley, Pontresina, Grisons, Engadine, Switzerland, Europe"

Snow-covered conifers, Switzerland, Europe

"Snow covered beech tree (Fagus sp. ), Schauinsland, Baden-Wurttemberg, Germany, Europe"

"Wildcat (Felis silvestris), young male looking out from between snow-covered tree trunks, Lahn-Dill-Kreis, Taunus, Hesse, Germany, Europe"

"Wildcat (Felis silvestris), young male looking out from between snow-covered tree trunks, Lahn-Dill-Kreis, Taunus, Hesse, Germany, Europe"

"Parmelia tiliaceae lichen on the bark of a deciduous tree, Switzerland, Europe"

Tree trunks in forest in winter, with hoarfrost, frog perspective, Switzerland, Europe

"Nuthatch (Sitta europaea) sitting on a lichen-covered tree trunk, Germany, Europe"

Lime tree in autumn, Switzerland, Europe

"Nuthatch (Sitta europaea) sitting on a lichen-covered tree trunk, Germany, Europe"

"Snow-covered trees on the Grenchenberg Plateau in winter, Swiss Jura, Switzerland, Europe"

"Log cabin covered with hoar frost and snow, Swabian Alb, Baden-Wuerttemberg, Germany, Europe"

Tree trunks in forest in winter with hoarfrost, in fog, Switzerland, Europe

"Tree trunks covered with frost, Lindenberg, Switzerland, Europe"