Andres M. Dominguez / Fly agaric mushrooms (Amanita muscaria) in snow, Los Alcornocales Natural Park, Cortes de la Frontera, southern Spain, January.

Andy Sands / Velvet / Winter shank fungus (Flammulina velutipes) frozen in hard frost, Bedfordshire, England, UK, February. Focus Stacked Image

Alex Hyde / Velvet shank / Winter fungus (Flammulina velutipes), growing on dead tree. Peak District National Park, UK. December. Focus stacked image.

Michael Quinton / Red Squirrel (Tamiasciurus hudsonicus) feeding on mushroom that it has collected and allowed to dry, preserving the fungus for winter, Alaska

Michael Quinton / Red Squirrel (Tamiasciurus hudsonicus) collecting mushroom and cutting it into smaller pieces, the pieces will dry into jerky which makes it easier to store in a winter food cache, Alaska

Michael Quinton / Red Squirrel (Tamiasciurus hudsonicus) carrying mushroom that it has collected and allowed to dry, preserving the fungus for winter, Alaska

Bryan and Cherry Alexander / Wild mushrooms lying on reindeer moss after being gathered near a Selkup camp in the forest. They will be dried & stored for the winter. Krasnoselkup, Yamal, Western Siberia, Russia

Bryan and Cherry Alexander / Wild mushrooms cut up and drying at a Selkup camp in the forest. Once dry they will be stored for the winter. Krasnoselkup, Yamal, Western Siberia, Russia

Robert Thompson / Velvet shank mushroom (Flammulina velutipes) growing on moss-covered log, Clare Glen, Tandragee, County Armagh, Northern Ireland, UK. December.

Adrian Davies / Velvet shank / Winter fungus (Flammulina velutipes) covered in snow, growing on tree trunk, Surrey, UK. February.

Alex Hyde / Velvet Shank / Winter Fungus (Flammulina velutipes), growing on moss-covered dead tree. Peak District National Park, UK. December. Focus stacked image.

Guy Edwardes / Velvet shank (Flammulina velutipes), South Island, New Zealand. May.