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.

Mark Hamblin / Reindeer (Rangifer tarandus) adult male, scratching antler (in velvet) with foot, Cairngorms, Scotland, UK, August.

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.

David Fleetham / Close up of the tube feet of a Purple velvet seastar (Leiaster leachi), extending from the protective crevice in one of its arms, Maui, Hawaii, Pacific Ocean.

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.