Robert Thompson / A fallen Sweet chestnut fruit (Castanea sativa) lying on the woodland floor, with a tree trunk covered in Textured lungwort (Lobaria scrobiculata) lichen, UK. October.

Markus Varesvuo / Robin (Erithacus rubecula) carrying a red berry in its beak as it takes off, Parainen Uto, Finland. October.

Guy Edwardes / Ancient Roman bridge and autumn leaves, Allt da Ghob Waterfall, Glen Lyon, Perthshire, Scotland, UK. October.

Ben Hall / Red deer (Cervus elaphus) backlit at dawn with visible breath. UK. October.

Danny Green / Wolf (Canis lupus) standing at woodland edge. Finland, April.

Marie Read / Blue jay (Cyanocitta cristata) holding an acorn in its bill whilst perched on tree stump, with autumn foliage, New York, USA, October.

Danny Green / Brown bear (Ursus arctos) in autumnal forest, Finland, September

Danny Green / Brown bear (Ursus arctos) in autumnal forest, Finland, September

Guy Edwardes / Canoes on Loch Tummel, Perthshire, Scotland, UK. October, 2014.

Guy Edwardes / Trees reflected in Loch Tummel, Perthshire, Scotland, UK. October, 2014.

Guy Edwardes / Boat hut on lochshore, Faskally Forest, Pitlochry, Perthshire, Scotland, UK. October 2014.

Guy Edwardes / River Garry and Pass of Killiecrankie from Garry Bridge, Perthshire, Scotland, UK. October, 2013.

Jack Dykinga / Cottonwood (Populus fremontii) trees in autumn at sunset, forming a sinuous line of yellow trees. Deer Creek Canyon, Grand Staircase-Escalante National Monument, Utah, USA, October.

Sandra Bartocha / European beech tree (Fagus sylvatica). in woodland, Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. October 2015.

Sandra Bartocha / European beech (Fagus sylvatica) and Pines reflected in Schweingartensee lake.Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. November 2015.

Andy Sands / Amethyst Deceiver (Laccaria amethystina) two young toadstools growing up from mossy log, Buckinghamshire, England, UK, September

Andres M. Dominguez / Hawthorn berries (Crataegus monogyna) in Poplar woodland (Populus) Sierra de Grazalema Natural Park, southern Spain. October.

Andres M. Dominguez / Bacteria (Lepthotryx discophora) causing iridescent patterns and White willow tree leaf (Salix alba) in river, Sierra de Grazalema Natural Park, southern Spain, November.

Andres M. Dominguez / Portuguese oak tree (Quercus faginea) covered in moss, Los Alcornocales Natural Park, southern Spain, November.

Paul Hobson / Weasel (Mustela nivalis) head and neck looking out of yellow autumn acer leaves, Sheffield, England, UK.

Juan Carlos Munoz / European beech forest (Fagus sylvatica) in autumn, view from below in the mist, Ilirska Bistrica, Green Karst, Slovenia, October.

Andy Rouse / Fish eye aerial view of autumnal forest, Finland, September.

Ann & Steve Toon / Hedgehog (Erinaceus europaeus) curled up sleeping in autumn leaves, UK, June, captive.

George Sanker / North American River Otter (Lontra canadensis) two swimming near the surface with autumn leaves reflected in water, Acadia National Park, Maine, USA, October.

Jack Dykinga / Road winding through aspen trees (Populus tremuloides) in autumn, Dixie National Forest, Boulder Mountain, Utah. October 2013.

Jack Dykinga / Cottonwood (Populus fremontii) in autumn, Long Canyon, Grand Staircase-Escalante National Monument, Utah, USA. October 2013.

David Noton / Autumnal foliage of Fireweed (Epilobium angustifolium) Kluane National Park, Yukon Territories, Canada, September.

David Noton / Autumn mist in Dee Valley (Dyffryn Dyfrdwy) at Horseshoe falls, near Llangollen, Denbighshire, Wales, UK, November 2013.

Staffan Widstrand / American Bison (Bison bison) in habitat, Grand Teton National Park, Wyoming, USA, October.

Hougaard Malan / Waterfall and autumn foliage with view to Mount Fitz Roy. El Chalten, Patagonia, Argentina. April 2013.

Ross Hoddinott / Maple leaves backlit on lightbox, Broxwater, Cornwall, UK. November 2013.

Sandra Bartocha / European beech (Fagus sylvatica) trees with last leaves in autumn and first snow on the ground. Serrahn, Muritz-National Park, World Natural Heritage site, Germany, November.

Floris van Breugel / Late fall colors linger among the mossy trees (Acer macrophyllum) in the Hoh Rainforest in Olympic National Park. Washington, USA. November 2012

Floris van Breugel / Autumn colors along the shores of Pharaoh Lake in Adirondacks park, New York, USA. October

Rolf Nussbaumer / Virginia creeper (Parthenocissus quinquefolia), climbing on Live Oak (Quercus virginiana) with fall colors, Kerrville, Hill Country, Central Texas, USA, November.

Visuals Unlimited / Sumac leaves in the fall (Rhus typhina).

Wild Wonders of Europe / Biancarelli / View on Lower Lakes in autumn, Plitvice Lakes NP, Croatia, October 2008

Theo Allofs / Autumn in the Ogilvie Mountains and boreal forest near the Dempster Highway, Yukon, Canada

Chase Dekker / Car on road in driving through colorul autumn forest, Green Mountains, Vermont

Tim Fitzharris / Forest and mountains in autumn, San Juan Mountains, Colorado

Jeff Foott / Quaking Aspen (Populus tremuloides) trees in autumn, Grand Teton National Park, Wyoming

Jeff Foott / Quaking Aspen (Populus tremuloides) trees in autumn, Grand Staircase-Escalante National Monument, Utah

Jeff Foott / Quaking Aspen (Populus tremuloides) trees in autumn, Grand Teton National Park, Wyoming

Jeff Foott / Quaking Aspen (Populus tremuloides) trees in autumn and mountains, Grand Tetons, Grand Teton National Park, Wyoming

Steve Gettle / Maple (Acer sp) tree in autumn, Pictured Rocks National Lakeshore, Michigan

Ondrej Prosicky/ BIA / Ural Owl (Strix uralensis) in autumn, Sweden

Chase Dekker / Deciduous forest and barn in autumn, Woodstock, Vermont