Peter Cairns / 2020VISION / Red squirrel (Sciurus vulgaris) on snow-covered branch in pine forest, Glenfeshie Estate, Cairngorms NP, Highlands, Scotland, UK, January

Peter Cairns / 2020VISION / Red squirrel (Sciurus vulgaris) on snow-covered branch in pine forest, Glenfeshie Estate, Cairngorms NP, Highlands, Scotland, UK, January

Peter Cairns / 2020VISION / Red squirrel (Sciurus vulgaris) on snow-covered branch in pine forest, Glenfeshie Estate, Cairngorms NP, Highlands, Scotland, UK, January

Peter Cairns / 2020VISION / Capercaillie (Tetrao urogallus) male displaying in pine forest in snow, Cairngorms NP, Highlands, Scotland, UK, January. Photographer quote: 'The capercaillie is Britain's fastest declining bird and r...

Orsolya Haarberg / Fallen tree in Scots pine forest, Reisa NP, Nordreisa, Troms, Norway, August 2006

Orsolya Haarberg / Spruce trees covered in hard frost, coniferous forest in winter, Harghita, Romania.

Floris van Breugel / Ancient Bristlecone Pine tree (Pinus longaeva) at sunset. White Mountains, California, USA, June 2009

Floris van Breugel / Ancient Bristlecone Pine trees (Pinus Longaeva) in morning sunlight, White Mountains, California, USA July 2007

Juan Carlos Munoz / Coniferous trees laden with snow in Taiga woodland, Lappland, Finland, March 2007

Juan Carlos Munoz / Coniferous trees laden with snow in Taiga woodland with moon in background, Lappland, Finland, March 2007

Sven Zacek / Reflections and dark rain clouds over wetland pools, Estonia

Wild Wonders of Europe / della Ferrera / Mediterranean cypress (Cupressus sempervirens) on the edge of Ocua jezero, one of the Bacinska Jezera (Lakes of Bacina) Dalmatia region, Croatia, May 2009

Wild Wonders of Europe / della Ferrera / Neretva river delta, with Harestail grass (Lagurus ovatus) in the foreground, Mediterranean cypresses (Cupressus sempervirens) on the far bank, Galicak area, Dalmatia region, Croatia, May 2009

Wild Wonders of Europe / Lilja / A big Mediterranean cypress (Cupressus sempervirens) tree, Karpaz Peninsula, Cyprus, April 2009

Wild Wonders of Europe / Lilja / Cretan / Mediterranean cypress (Cupressus sempervirens) growing on rock, Imbros, Crete, Greece, April 2009

Jack Dykinga / Lone Ponderosa pine tree {Pinus ponderosa} in front of canyon walls showing drip mark fractures, Long Canyon, Grand Staircase-Escalante National Monumnet, Utah, USA

Jack Dykinga / Engelmann spruce (Picea engelmannii) growing amongst pinnacles of volcanic tuff, dawn, Wheeler Geological Area Wilderness, Rio Grande National Forest, Colorado, USA

Jack Dykinga / Snow covered coniferous trees beside Campers Lake, Willamette National Forest, Oregon, USA

Wild Wonders of Europe / López / Roe deer {Capreolus capreolus} amongst young coniferous trees, Kemeri National Park, Latvia, June 2009

Niall Benvie / Trees laden with snow and ice (Tykky), Riisitunturi, Finland.

Yva Momatiuk & John Eastcott / Saplings amidst coniferous trees burned by forest fire, Yellowstone National Park, Wyoming

Yva Momatiuk & John Eastcott / Sapling amid coniferous trees burned by forest fire, Yellowstone National Park, Wyoming

Jose B. Ruiz / Aleppo pine tree {Pinus halepensis} photographed with long exposure at night with star trails behind, Torremanzana, Alicante, Spain

Jose B. Ruiz / Aleppo pine tree {Pinus halepensis} photographed with long exposure at night with star trails behind, Torremanzana, Alicante, Spain

Jose B. Ruiz / Aleppo pine tree {Pinus halepensis} photographed with long exposure at night with star trails behind, Torremanzana, Alicante, Spain

Tim Fitzharris / Aspen and Spruce trees dusted with snow, Rocky Mountain National Park, Colorado

Jack Dykinga / Snow covered Pinyon Pines (Pinus edulus) overlooking Shoshone Point at sunrise, East Rim, Grand Canyon NP, Arizona, USA

Jack Dykinga / North Kaibab Trail with Pinyon Pine (Pinus edulis) and Utah Juniper (Juniperus osteosperma), North Rim, Grand Canyon NP, Arizona, USA

Jack Dykinga / Snow covered Pinyon Pines (Pinus edulus) with pine cones, overlooking the West Rim, Grandview Point, Grand Canyon NP, Arizona, USA

Carol Walker / Yellow Labrador Retreiver (Canis familiaris) running in snow. Boulder, Colorado.

Jack Dykinga / Snow on Pinyon Pines (Pinus edulis) at sunrise, East Rim Drive, South Rim, Grand Canyon NP, Arizona, USA

Jack Dykinga / Snow covered Ponderosa Pine (Pinus ponderosa) branches with North Rim in the Background, Grand Canyon NP, Arizona, USA

Jack Dykinga / Snow covered Ponderosa Pines (Pinus ponderosa) bowed over after a blizzard, Grand Canyon NP, Arizona, USA

Jack Dykinga / Monarch Butterflies (Danaus plexippus) covering the trunk of a coniferous tree, Sierra Chincua Monarch Butterfly Biosphere Reserve, Michoacan, Mexico, Central America

Kirkendall-Spring / Leidig Meadow and Cathedral Rocks with a coniferous tree in the foreground, Yosemite NP, California, USA

Kirkendall-Spring / Trees of a coniferous forest in the morning mist, Olympic NP, Washington, USA

Eric Baccega / Igloo with lights at night by moonlight, Northwest Territories, Canada March 2007

Jack Dykinga / Trunk of Giant Sequoia tree {Sequoiadendron giganteum} showing scars from ancient fires, Sequoia NP, California, USA

Pete Cairns / Scots pine trees reflected in mirror-calm loch in late evening light, Loch Mallachie, Cairngorms National Park, Scotland, UK 2005

Pete Cairns / Scots pine trees (Pinus sylvestris) standing alongside Loch Mallachie, perfectly reflected in water. Cairngorms National Park, Scotland, UK

Pete Cairns / Autumnal backlit larches, Loch an Eilean, Rothiemurchus, Cairngorms National Park, Scotland' UK 2005

Jack Dykinga / Club moss {Lycopodium sp} on trunks of Sitka spruce trees {Picea sitchensis} Hoh temperate rainforest, Olympic NP, Washington, USA

Brian Lightfoot / Red deer damage to Sitka spruce tree {Cervus elaphus} Glen Cannich, Scotland.

Pete Cairns / Deer fence protects tree plantation from damage from grazing deer. Red tape reduces Grouse collision, Highlands Scotland, UK

Staffan Widstrand / European Brown Bear in woodland {Ursus arctos} Lapland, Finland.

Staffan Widstrand / Virgin boreal forest, Muddus National Park, Lapland, Sweden.

Pete Cairns / Scots pine tree at sunset {Pinus sylvestris} Strathspey, Highlands, Scotland, UK

Tim Fitzharris / Ponderosa Pine (Pinus ponderosa) trees with snow, Grand Canyon National Park, Arizona

Jim Brandenburg / Giant Sequoia (Sequoiadendron giganteum) forest, King's Canyon National Park, California

Jim Brandenburg / Giant Sequoia (Sequoiadendron giganteum) trees with recent dusting of snow, King's Canyon National Park, California

Jim Brandenburg / Giant Sequoia (Sequoiadendron giganteum) trees with dusting of snow, King's Canyon National Park, California

Jim Brandenburg / Giant Sequoia (Sequoiadendron giganteum) and star trails in King's Canyon National Park, California

Pete Oxford / Yunnan pine trees in snow {Pinus yunnanensis} Lijiang, Yunnan province, China

Pete Cairns / Golden eagle perched in tree {Aquila chrysaetos} Scotland, UK

David Pike / Japanese macaques in tree {Macaca fuscata} Jigokudani, Japan

Pete Cairns / Growth rings in trunk of Spruce tree {Picea sp} Norway

Tim Edwards / Mount Tofana Di Rozes rockface, Dolomites, Italy, Europe.

Geoff Simpson / European larch tree {Larix decidua} cones on branch, UK

Bernard Castelein / Silver birch tree {Betula verrucosa} at edge of pine wood Kalmthout, Belgium

Pete Cairns / Pine forest after snowstorm, Strathspey, Scotland, UK

Jose B. Ruiz / Natural rock formations, Cuenca, Spain

Duncan Mcewan / Larch - old cones with lichen and emerging spring leaves {Larix sp} Scotland, UK

Pete Cairns / Scots pine forest in dawn mist Glenfeshie, Highland, Scotland, UK

Jose B. Ruiz / River Ara, Bujareulo, Pyrenees NP, Heusca, Spain

Geoff Simpson / European larch cone with new leaf growth {Larix decidua} Derbyshire, Peak District NP, UK

Jorma Luhta / Aurora borealis colours in night sky, northern Finland, March

Jorma Luhta / Moving belt of aurora borealis colours in night sky. Lapland, northern Finland, winter

Jorma Luhta / Aurora borealis storm colours in night sky, northern Finland, winter

Pascal Kobeh / Natural basin in Oro Bay, Ile des Pins, with the New Caledonia pines (Araucaria columnaris) that gave the name to the island, New Caledonia, Pacific Ocean.

Pascal Kobeh / Coast of l'Île-des-Pins with the New Caledonia pines (Araucaria columnaris) that gave the name to the island at sunset, New Caledonia, Pacific Ocean.

Bernard Castelein / Scot's pine (Pinus sylvestris) and Common oak (Quercus robur) trees in early morning mist. Klein Schietveld, Brasschaat, Belgium. July 2019.

David Tipling / Mountain hare (Lepus timidus) footprints in snow, with Spruce trees cloaked in snow Ruka Peak, Kuusamo, Finland. January.

David Tipling / Mountain hare (Lepus timidus) footprints in snow, with Spruce trees cloaked in snow Ruka Peak, Kuusamo, Finland. January.

David Tipling / Spruce trees cloaked in snow Ruka Peak, Kuusamo, Finland. January.

David Tipling / Mountain hare (Lepus timidus) footprints in snow, among Spruce trees cloaked in snow Ruka Peak, Kuusamo, Finland. January.

David Tipling / Mountain hare (Lepus timidus) footprints in snow, with Spruce trees cloaked in snow Ruka Peak, Kuusamo, Finland. January.

Sergio Hanquet / Trees damaged by forest fire. Garajonay National Park, La Gomera, Tenerife, Canary Islands, 2012.

Sergio Hanquet / Canary Island pine (Pinus canariensis) trees, dead in forest following forest fire. Ilfonche, Tenerife, Canary Islands. 2012.

Sergio Hanquet / Forest fire in Canary Island pine (Pinus canariensis) forest. Ifonche, Tenerife, Canary Islands, 2012.

Sergio Hanquet / Forest fire in Canary Island pine (Pinus canariensis) forest. Ifonche, Tenerife, Canary Islands, 2012.

Sergio Hanquet / Electricity wires and Canary Island pine forest (Pinus canariensis) silhouetted by forest fire. Ifonche, Tenerife. Canary Islands, 2012.

Sergio Hanquet / Charred remnant Canary Island pine (Pinus canariensis). tree trunk following forest fire. El Hierro, Canary Islands.

Sergio Hanquet / Charred remnant Canary Island pine (Pinus canariensis). tree trunk following forest fire. El Hierro, Canary Islands.

Pascal Tordeux / Larch trees (Larix decidua) in mist, Alps, France. November 2013.

Nick Garbutt / Morning Glory thermal pool surrounded by snow, coniferous forest in background. Near Daisy Geyser Basin, Yellowstone National Park, USA. January 2019.

David Tipling / Spruce (Picea sp) trees in forest, cloaked in crown snow, with sun low in sky, Ruka Peak, Kuusamo, Finland. January 2019.

Claudio Contreras / Pine (Pinus sp), dead tree silhouetted in mist. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico, May

Claudio Contreras / Jeffrey pine (Pinus jeffreyi) and White Fir (Abies concolor) forest. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico.

Claudio Contreras / Jeffrey pine (Pinus jeffreyi) needles on ice. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico.

Claudio Contreras / Pine (Pinus sp) forest at dawn. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico. December 2009.

Claudio Contreras / Sugar pine (Pinus lambertiana) forest in evening light. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico. June 2011.

Claudio Contreras / Jeffrey pine (Pinus jeffreyi) forest in mist. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico, December 2009.

Claudio Contreras / Sierra lodgepole pine (Pinus contorta var murrayana) forest. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico. 2011.

Claudio Contreras / Sugar pine (Pinus lambertiana) forest in evening light. , Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico. June 2011.

Claudio Contreras / Sierra lodgepole pine (Pinus contorta murrayana) forest. Sierra de San Pedro Martir National Park, Baja California Peninsula, Mexico.

John Shaw / Moss-covered Sitka spruce (Picea sitchensis) and sword fern (Polystichum munitum) in the Hoh Rain Forest, Olympic National Park, Washington, USA, June.