Common ivy (Hedera helix) growing on a tree, Switzerland, Europe

Slug, Red slug ( Arion rufus) to tree trunk, Switzerland, Europe

Tree root, with a carved face, Zermatt, Canton of Valais, Switzerland, Europe

"Giant Polypore (Meripilus giganteus), Switzerland, Europe"

"Dead tree lying on a meadow in Kirnischtal valley, Saxon Switzerland, Ottendorf, Saxony, Germany, Europe"

"Freshly cut larch trees (Larix), logs, Roseg valley, Pontresina, canton of Grisons, Engadin, Switzerland, Europe"

"Old beech tree (Fagus) on a rock, Saxon Switzerland National Park, Saxon Switzerland region, Saxony, Germany, Europe"

"Snow-covered coniferous forest, Lindenberg, Switzerland, Europe"

"Freshly cut larch trees (Larix), logs, Roseg valley, Pontresina, canton of Grisons, Engadin, Switzerland, Europe"

"Coniferous forest covered with frost, Lindenberg, Switzerland, Europe"

Horse chestnuts, Switzerland, Europe

Horse chestnuts, Switzerland, Europe

Cut open tree trunk, Switzerland, Europe