Ross Hoddinott / Track leading through Lanhydrock beech woodland with bluebells in spring, Cornwall. UK

Sven Zacek / Ural owl (Strix uralensis) perched in tree sleeping, viewed through a fence, Estonia.

Ernie Janes / Beech trees (Fagus sylvatica) at night in winter, with lamp post illuminating the woodland. Felbrigg Woods, Norfolk, England, UK. January.

Ernie Janes / Bluebells (Hyacinthoides non-scripta) and Beech (Fagus sylvatica) leaves, England, UK, May.

Jeff Foott / Mixed coniferous and deciduous forest after snowfall in autumn, Wells Gray Provincial Park, British Columbia, Canada

Guy Edwardes / Beech (Fagus sylvatica) woodland canopy in winter, Cranborne Chase, Dorset, England, UK.

Guy Edwardes / Beech (Fagus sylvatica) woodland canopy in winter, Cranborne Chase, Dorset, England, UK.

Bruno D'Amicis / Red fox (Vulpes vulpes) walking along fallen trunk of old Beech (Fagus sylvatica) tree, Coppo del Principe old-growth beech forest in autumn. Abruzzo, Lazio and Molise National Park / Parco Nazionale...

Bruno D'Amicis / Beech (Fagus sylvatica) tree seedlings in old growth forest in spring, Abruzzo, Lazio and Molise National Park / Parco Nazionale d'Abruzzo, Lazio e Molise UNESCO World Heritage Site Italy. May

Bruno D'Amicis / Beech (Fagus sylvatica) tree seedlings in old growth forest in spring, Abruzzo, Lazio and Molise National Park / Parco Nazionale d'Abruzzo, Lazio e Molise UNESCO World Heritage Site Italy. May

Guy Edwardes / River Fowey at Golitha Falls, Bodmin Moor, Cornwall, England, UK. May 2010.

Guy Edwardes / River Fowey flowing through Beech (Fagus sylvatica) woodland, Golitha Falls, Bodmin Moor, Cornwall, England, UK. May 2010.

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

Bernard Castelein / Beech woodland (Fagus sylvatica) Peerdsbos, Brasschaat, Belgium

Bernard Castelein / Beech woodland (Fagus sylvatica) with sun rays shining through, black and white image. Peerdsbos, Brasschaat, Belgium

Bernard Castelein / Beech woodland (Fagus sylvatica) Peerdsbos, Brasschaat, Belgium, November.

Chien Lee / Travellers Palm (Ravenala madagascariensis) trees on hillside, Fianarantsoa Province, Madagascar

Vincent Grafhorst / Tree with epiphytes, Harenna Forest, Bale Mountains National Park, Ethiopia

Michel Roggo / Autumn trees viewed from below Lake Baikal, Lake Baikal UNESCO World Heritage Site, Siberia, Russia. May 2013. Photographed for The Freshwater Project.

Terry Whittaker / Red squirrel (Sciurus vulgaris) leaping between Scots pine tree (Pinus sylvestris)s, lands on camera, Black Isle, Ross and Cromarty, Scotland, February.

SCOTLAND: The Big Picture / Close up of a Red deer (Cervus elaphus) stag feeding in snow, Cairngorms National Park, Scotland, UK, February.

SCOTLAND: The Big Picture / Scots pine trees (Pinus sylvestris) in heavy snowfall, Cairngorms National Park, Scotland, UK, January.

Ingo Arndt / European Red Wood Ant (Formica polyctena) nests in pine forest, Hessen, Germany, July.

Ingo Arndt / Morning mist over coniferous woodland, Harz National Park, Saxony, Germany

Tim Fitzharris / Rhododendron (Rhododendron sp) flowers and Coast Redwood (Sequoia sempervirens) trees in fog, Redwood National Park, California

Chien Lee / Fan Palm (Licuala sp) trees in lowland rainforest, Nimbokrang, New Guinea, Indonesia

Tim Fitzharris / Coniferous forest in winter, Aspen Vista, Santa Fe National Forest, New Mexico

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

Sandra Bartocha / Sun rays shining through European beech woodland (Fagus sylvatica). Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. November 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.

Tim Fitzharris / Coniferous forest, Jemez Mountains, Santa Fe National Forest, New Mexico

Yva Momatiuk & John Eastcott / Quaking Aspen (Populus tremuloides) trees in autumn, Rocky Mountains, Colorado

Yva Momatiuk & John Eastcott / Quaking Aspen (Populus tremuloides) trees in autumn, Rocky Mountains, Colorado

Yva Momatiuk & John Eastcott / Quaking Aspen (Populus tremuloides) trees in autumn, Utah

Yva Momatiuk & John Eastcott / Quaking Aspen (Populus tremuloides) trees in autumn, Utah

Chien Lee / Buttress roots on rainforest tree, Mulu National Park, Sarawak, Borneo, Malaysia

Alex Hyde / Canopy of a Beech woodland (Fagus sylvatica) in autumn through a circular fisheye lens. Plitvice Lakes National Park, Croatia. November.

Alex Hyde / Low angle view of Porcelain fungus (Oudemansiella mucida) growing on a dead Beech tree (Fagus sylvatica). Plitvice Lakes National Park, Croatia. November.

Alex Hyde / View up to Beech (Fagus sylvatica) woodland canopy in winter, photographed with a circular fisheye lens. Derbyshire, UK. December.

Matthias Breiter / Black Bear (Ursus americanus) sleeping in tree in temperate rainforest, Anan Creek, Tongass National Forest, Alaska

Matthias Breiter / Black Bear (Ursus americanus) sleeping in tree in temperate rainforest, Anan Creek, Tongass National Forest, Alaska

Matthias Breiter / Black Bear (Ursus americanus) in tree in temperate rainforest, Anan Creek, Tongass National Forest, Alaska

Matthias Breiter / Trees in autumn along river, Sand River, Agawa Bay, Ontario, Canada

Matthias Breiter / Black Bear (Ursus americanus) sleeping in tree in temperate rainforest, Anan Creek, Tongass National Forest, Alaska

Jeff Foott / Coast Redwood (Sequoia sempervirens) and Oak (Quercus sp) trees, Redwood National Park, California

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

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

Andres M. Dominguez / Bare trees and conifers in woodland, Ordesa y Monte Perdido National Park, Huesca, Spain, October.

Claudio Contreras / Aerial view of Red mangrove (Rhizophora mangle) coastal lagoon, Sian Ka'an Biosphere Reserve, Caribbean Sea, Mexico, January

Alex Hyde / View up towards autumnal Beech (Fagus sylvatica) woodland canopy, taken with a fisheye lens. Derbyshire, UK. October.

Sven Zacek / Ural owl (Strix uralensis) perching on an Apsen tree during the blue hour of dawn, Tartumaa, Estonia, April.

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

Sven Zacek / Autumn trees on the Rapa River Delta, aerial view, Rapadalen Sarek National Park, Sweden, September 2009.

Sven Zacek / Frozen Birch trees (Betula sp) in a grove, Tartumaa, Estonia, January 2013.

Andy Rouse / Sunrise in forest, silhouetting trees. Ranthambhore Tiger Reserve, India.

Pal Hermansen / Red house surrounded by snow-covered trees in winter, Eastern Finnmark, Norway, November 2006. Photo non disponible actuellepment pour de l'édition, veuillez nous contacter si vous souhaitez l'utili...

Scott Leslie / Longleaf Pine (Pinus palustris) forest, Okefenokee National Wildlife Refuge, Georgia

Cyril Ruoso / Bromeliad (Bromeliaceae) pair flowering, Pacaya Samiria National Park, Peru

Nick Upton / Eurasian beaver (Castor fiber) gnawing the trunk of a Willow tree (Salix sp.) in woodland enclosure at night. Devon Beaver Project, run by Devon Wildlife Trust, Devon, UK, April. Taken by a remote cam...

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

Sandra Bartocha / Scots pine (Pinus sylvestris) trees in snowy woodland in evening sunlight, Potsdam, Germany, January.

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.

Sandra Bartocha / Silver birch (Betula pendula) and Scots pine (Pinus sylvestris) trunks in snow, Muritz-National Park, Germany, January.

Sandra Bartocha / Silver birch (Betula pendula) with Heather (Calluna vulgaris) in full bloom, Reicherskreuzer Heide, Nature Reserve Schlaubetal, Germany, August.

Sandra Bartocha / Wood anemones (Anemone nemorosa) flowering in European beech (Fagus sylvatica) forest, Neubrandenburg, Germany, April.

Sandra Bartocha / Scots pine (Pinus sylvestris) forest in spring, Muritz-National Park, Germany, May.

Ben Cranke / Conifer tree bending over under weight of snow, Kuusamo, Finland. February 2011.

Matthew Maran / Oak tree (Quercus robur) in snow, Hampstead Heath, London, UK, January 2013.

Philippe Clement / Woodpiles amongst flowering Bluebells (Hyacinthoides non-scripta) in beech woodland, Hallerbos / Halle forest, Belgium, April.

Fabrice Cahez / Reflections of trees in puddle of water filled with autumn leaves, Vosges, France, November 2013.

Jabruson / African rainforest clearance - men sawing hardwood tree trunks to make planks. South of Mbomo, Odzala-Kokoua National Park, Republic of Congo, May 2005.

Alex Hyde / Beech (Fagus sylvatica) woodland in spring, at dawn, Peak District National Park, Cheshire, UK, May.

Peter Cairns / Calcified trees at Tangled Creek in winter, Yellowstone National Park, Wyoming, USA, February 2013.

Charlie Summers / Black Bear (Ursus americanus) sleeping in a Sitka Spruce tree (Picea sitchensis) alongside Anan Creek, Alaska, July.

Tim Laman / Two Red-crowned cranes (Grus japonensis) in flight in snow, Japan.

Steven Kazlowski / Northern lights (Aurora borealis) glowing brightly over trees along Steese Highway, Cleary Point, outside Fairbanks, Alaska

David Pattyn / Western Red Cedar trees (Thuja plicata) in temperate rainforest. Cathedral grove in MacMillan provincial park, Vancouver Island, British Columbia, Canada, August.

Juan Carlos Munoz / View of tropical rainforest trees shrouded in mist, Danum Valley Conservation Area, Borneo, Malaysia.

Juan Carlos Munoz / Iberian black pig in oak woodland, Sierra de Aracena Natural Park, Huelva, Andalucia, Spain, Europe. Breed used to produce Iberico ham / Jamon Iberico

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 / Emerging spring leaves adorn the mossy trees - Vine Maple (Acer circinatum) and Alder (Alnus rubra) in Mt Baker - Snoqualmie National Forest. Washington. April 2013

Alex Mustard / Trees and sky photographed at dawn through the surface of Three Sisters Spring, Crystal River, Florida, United States of America.

Pal Hermansen / Old abandoned car in 'car graveyard' surrounded by trees in winter, Bastnas, Sweden, December

Sven Zacek / Rays of sunshine behind pine trees, Southern Estonia, May early morning.

Sven Zacek / Female Long-eared owl (Asio otus) peeking from behind a spruce tree, Southern Estonia, June.

Theo Bosboom / Young Beech trees (Fagus sp) with autumn leaves in a coniferous forest, near La Hoegne, Belgian Ardennes, November

Theo Bosboom / Conifer trees in snowy landscape, near Baraque Michel, Belgian Ardennes, January 2010

Inaki Relanzon / Giant Sequoia (Sequoiadendron giganteum) in Sequoia National Park, California, USA.

Jabruson / Old abandoned Oil Palm trees (Elaeis guineensis), on the edge of plantation limits, at the edge of Korup National Park, South West Cameroon.

Jussi Murtosaari / Whooper Swans (Cygnus cygnus) on a frozen lake, Finland, January

Sven Zacek / Trees that have been gnawed by Beavers (Castor fiber) Southern Estonia, October.

Erlend Haarberg / Autumn in the birch forest at Hraunfossar. Iceland.

Peter Cairns / 2020VISION / Three Scots pine (Pinus sylvestris) trees, with conifer woodland in the background, Glen Affric National Nature Reserve, Scotland, UK, October 2012.

Kevin Schafer / Larch (Larix sp) trees in autumn below Mount Assiniboine with Sunburst Lake, Mount Assiniboine Provincial Park, British Columbia, Canada

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

David Woodfall / Sessile oak (Quercus petraea) tree with sunlight behind, ancient semi natural woodland in Gilfach Nature Reserve, Radnorshire Wildlife Trust, Powys, Wales, UK May