Marie Read / Four Cedar waxwings (Bombycilla cedrorum) feeding on Crabapple (Malus sp) fruit, Ithaca, New York, USA, February.

David Pattyn / Temperate rainforest scenic with ancient Red cedar tree (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

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

Cheryl-Samantha Owen / Western red cedar tree (Thuja plicata) deemed Canada's 'Gnarliest tree' in the old growth forest. Avatar Grove, Vancouver Island, British Columbia, Canada, July.

Konstantin Mikhailov / Western red cedar tree (Thuja plicata) trunks with moss and fungi, inland temperate rainforest of Olympic National Park, Washington, USA, Western North America, January.

Matthew Maran / Detail of frost on Western Red Cedar (Thuja plicata). Vancouver Island, Canada, March.

Jack Dykinga / Western red cedar (Thuja plicata) with moss draped along the branches. Olympic National Park, Washington, USA, June.

Jack Dykinga / Western red cedar (Thuja plicata) temperate rain forest. Olympic National Park, Washington, USA, June.

Phil Savoie / Avenue of Western Red Cedar trees (Thuia plicata) Wye Valley, Monmouthshire, Wales, UK, March.

Phil Savoie / Western red cedar tree (Thuja plicata) in old growth forest, Wells Grey Provincial Park, British Columbia, Canada. July.

Phil Savoie / Western red cedar tree (Thuja plicata) in old growth forest, Wells Grey Provincial Park, British Columbia, Canada. July.

Phil Savoie / Western red cedar tree (Thuja plicata) in old growth forest, Wells Grey Provincial Park, British Columbia, Canada. July.

Phil Savoie / Western red cedar tree (Thuja plicata) old growth forest on the shore of river, Wells Grey Provincial Park, British Columbia, Canada. July.

Phil Savoie / Western red cedar tree (Thuja plicata) in old growth forest, Wells Grey Provincial Park, British Columbia, Canada. July.

Phil Savoie / Western red cedar tree (Thuja plicata) in old growth forest, Wells Grey Provincial Park, British Columbia, Canada. July.

Nick Garbutt / Mixed coniferous forest with Red cedar (Thuja plicata), Sitka spruce (Picea sitchensis), Western hemlock (Tsuga heterophylla) Great Bear Rainforest, British Columbia, Canada. September 2007.

Marie Read / Eastern bluebird (SIalia sialis) male feeding on berries of Eastern red-cedar (Juniperus virginiana) in winter, New York, USA

Marie Read / Eastern bluebird (SIalia sialis) male feeding on berries of Eastern red-cedar (Juniperus virginiana) in winter, New York, USA

Marie Read / Eastern bluebird (SIalia sialis) male attracted to feed on berries of Eastern red-cedar (Juniperus virginiana) in winter, New York, USA

Jim Brandenburg / Northern White Cedar (Thuja occidentalis) forest, Superior National Forest, Minnesota

Tim Fitzharris / Dogwood (Cornus sp) flowering and Cedar (Cedrus sp), Tyler State Park, Texas

Tim Fitzharris / Lupine (Lupinus sp) and Paintbrush (Castilleja sp) flowers, Cedar Hill State Park, Texas

Matthew Maran / Western red cedar tree (Thuja plicata) detail of bark, The Big Tree Trail, Meares Island, Clayoquot Sound, Vancouver Island, British Columbia, Canada.

Matthew Maran / Western Red Cedar tree (Thuja plicata) The Big Tree Trail, Meares Island, Clayoquot Sound, Vancouver Island, British Columbia, Canada.

David Pattyn / Temperate rainforest with ancient Red cedar trees (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest scenic with ancient Red cedar trees (Thuja plicata) and dead stump with bracket fungi. Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest with ancient Red cedar trees (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest scenic with ancient Red cedar trees (Thuja plicata) and a forest trail walkway for visitors. Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest with ancient Red cedar tree (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest scenic with ancient Red cedar trees (Thuja plicata) and a forest trail walkway for visitors. Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest scenic with ancient Red cedar trees (Thuja plicata) and a forest trail walkway for visitors. Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest with ancient Red cedar tree (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest with ancient Red cedar trees (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest with ancient Red cedar tree (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest with ancient Red cedar tree (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

David Pattyn / Temperate rainforest with ancient Red cedar tree (Thuja plicata). Pacific Rim National Park, Vancouver Island, British Columbia, Canada, August.

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

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

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

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

Cheryl-Samantha Owen / Western red cedar tree (Thuja plicata) deemed Canada's 'Gnarliest tree' in the old growth forest. Avatar Grove, Vancouver Island, British Columbia, Canada, July.

Cheryl-Samantha Owen / Western red cedar tree (Thuja plicata) deemed Canada's 'Gnarliest tree' in the old growth forest. Avatar Grove, Vancouver Island, British Columbia, Canada, July.

Cheryl-Samantha Owen / Woman walking over a fallen tree trunk in old growth forest of Red cedar trees (Thuja plicata) and Douglas fir trees (Pseudotsuga menziesii) Avatar Grove, near Port Renfrew, Vancouver Island, Canada,...

Cheryl-Samantha Owen / Western red cedar tree (Thuja plicata) deemed Canada's 'Gnarliest tree' in the old growth forest. Avatar Grove, Vancouver Island, British Columbia, Canada, July.

Oriol Alamany / Canadian Bunchberry (Cornus canadensis) flowering nest to Western Red cedar (Thuja plicata) tree trunk in Tofino old growth forest, Vancouver Island, British Columbia, Canada

Matthew Maran / Photographer Matthew Maran in the hollow core of a Western Red Cedar (Thuja plicata). The West Coast Trail, Pacific Rim national Park, Vancouver Island, Canada, September.

Matthew Maran / Hiker pausing on a forest trail by the trunk of an enormous Western Red Cedar (Thuja plicata). Pacific Rim National Park Reserve, Vancouver Island, Canada, October.

Tim Laman / Temperate rainforest with giant Western Red Cedar trees (Thuja plicata) Olympic National Park, Washington, USA.

Alan Watson / Trunks of Western hemlock trees (Tsuga heterophylla) and Western red cedar trees (Thuja plicata), in temperate rainforest, Upper Incomappleux Valley, British Columbia, Canada. July 2007

Alan Watson / Moss on the branches of Western hemlock tree (Tsuga heterophylla) with the trunk of Western red cedar tree (Thuja plicata) behind, in temperate rainforest, Upper Incomappleux Valley, British Columbia,...

Alan Watson / Trunk of a Western red cedar tree (Thuja plicata) and Western hemlock trees (Tsuga heterophylla) in temperate rainforest, Upper Incomappleux Valley, British Columbia, Canada. The upper Incomappleux...

Alan Watson / Trunks of massive Western red cedar trees (Thuja plicata) in temperate rainforest, Upper Incomappleux Valley, British Columbia, Canada. The upper Incomappleux valley contains the largest surviving r...

Alan Watson / Lichen growing on the bark of Western red cedar tree (Thuja plicata) in temperate rainforest, Upper Incomappleux Valley, British Columbia, Canada.

Alan Watson / Bark detail of Western red cedar tree (Thuja plicata) in temperate rainforest, Upper Incomappleux Valley, British Columbia, Canada.

Alan Watson / Trunks of Western red cedar trees (Thuja plicata) and Western hemlock trees (Tsuga heterophylla) in inland temperate rainforest, Goat Range Provincial Park, British Columbia, Canada. July 2007

Alan Watson / Trunk of Western red cedar tree (Thuja plicata) in inland temperate rainforest, Goat Range Provincial Park, British Columbia, Canada. July 2007

Alan Watson / Devil's club (Oplopanax horridus) leaves and fruit with Western red cedar trees (Thuja plicata) in the background, inland temperate rainforest, Goat Range Provincial Park, British Columbia, Canada.

Alan Watson / Devil's club (Oplopanax horridus) leaves and fruit with Western red cedar trees (Thuja plicata) in the background, inland temperate rainforest, Goat Range Provincial Park, British Columbia, Canada.

Matthew Maran / Shore pines (Pinus contorta) Western red cedar (Thuja plicata) and Western hemlock (Tsuga heterophylla) trees growing in coastal forest, Barkley Sound, Vancouver Island, Canada

Konrad Wothe / Western Red Cedar (Thuja plicata) tree, largest specimen in the world at 178 feet tall, Olympic National Park, Washington

Konrad Wothe / Western Red Cedar (Thuja plicata) tree, largest specimen in the world at 178 feet tall, Olympic National Park, Washington

Konrad Wothe / Western Red Cedar (Thuja plicata) tree, largest specimen in the world at 178 feet tall, Olympic National Park, Washington

Tim Fitzharris / Western Red Cedar (Thuja plicata) forest interior, Grove of the Patriarchs, Mount Rainier National Park, Washington

Tim Fitzharris / Western Red Cedar (Thuja plicata) trees, Oliphant Lake, British Columbia, Canada

Matthew Maran / Western Red Cedar {Thuja plicata} Bare trunks of trees can stand dead for hundreds of years as they have a high resistance to rot. The Big Tree Trail, Meares Island, Clayoquot Sound, Vancouver Island,...

Matthew Maran / Looking up the trunk of a Western Red Cedar {Thuja plicata} that has had its bark stripped by first Nation Americans for many uses such as mats, rope and clothing, The Big Tree Trail, Meares Island, C...

Matthew Maran / Person standing beside the trunk of a Western Red Cedar {Thuja plicata} The Big Tree Trail, Meares Island, Clayoquot Sound, Vancouver Island, BC, Canada

Matthew Maran / Looking up inside the trunk of a Western Red Cedar {Thuja plicata} These trees die from the inside out leaving huge hollows big enough for a person to walk in. The Big Tree Trail, Meares Island, Clayo...

Matthew Maran / Trunk of Western 'Grandma' Red Cedar tree {Thuja plicata} over 800 years old, The Big Tree Trail, Meares Island, Clayoquot Sound, Vancouver Island, BC, Canada

Matthew Maran / Sorting logs of Red cedar {Thuja plicata} from those of Yellow cedar {Chamaecyparis nootkatensis} before transfering them directly onto a barge for transportation, Barkley Sound, Vancouver Island, BC,...

Jouan & Rius / Trunk of Australian Red cedar (Toona ciliata / australis) Lamington National Park, Queensland, Australia

Eric Baccega / Roots of a giant Western Red cedar (Thuja plicata), old growth forest, MacMillan Provincial Park, Cathedral Grove, Vancouver Island, British Columbia, Canada

Matthew Maran / Mist over temperate rainforest with Western red cedar (Thuja plicata) and Western Hemlock (Tsuga mertensiana) trees in Warn Bay. Vancouver Island, Canada

Matthew Maran / Western red cedar (Thuja plicata) tree in Warn Bay. These trees can stand dead for hundreds of years thanks to their high resistance to rot. Clayoquot Sound, Vancouver Island, Canada

Juergen Freund / Trunk and roots of Giant red cedar tree {Thuja plicata} in rainforest, Queensland, Australia

Juergen Freund / Tourist standing beside trunk and roots of Giant red cedar tree {Thuja plicata} in rainforest, Queensland, Australia

Tim Fitzharris / Western Red Cedar (Thuja plicata) old growth forest, Grove of the Patriarchs, Mount Rainier National Park, Washington

Doug Wechsler / Burnt clearcut of Red cedar and Sitka spruce, Quinault reservation, Washington, USA, 1984

Philippe Clement / Old Man's Beard {Usnea longissima} hanging from the branches of Western red cedar {Thuja plicata}, Glacier NP, Montana, USA

Philippe Clement / Close up of bark of Western red cedar {Thuja plicata} Belgium

Tim Fitzharris / Western Red Cedar (Thuja plicata) grove of the patriarchs, Mt Rainier National Park, Washington

Benjamin Olson / Northern White Cedar (Thuja occidentalis) trees at lake during storm, Minnesota

Benjamin Olson / Red Squirrel (Tamiasciurus hudsonicus) climbing Northern White Cedar (Thuja occidentalis), Grand Marais, Minnesota

Jeff Foott / Elk and bison petroglyphs made by Ancestral Puebloans, Cedar Mesa, Bears Ears National Monument, Utah

Benjamin Olson / Northern White Cedar (Thuja occidentalis) needles spinning in eddy at base of waterfall near Grand Marais, Minnesota, multiple exposures

Tim Fitzharris / Cedar Canyon, Petit Jean State Park, Arkansas

Doug Wechsler / Juniper-apple rust (Gymnosporangium juniperi-virginianae) on Virginian juniper (Juniperus virginiana) tree, Morris Arboretum, Pennsylvania, USA. May.

Jack Dykinga / Light fog over old growth Redwood trees (Sequoia sempervirens) and Red cedar (Thuja plicata) in temperate rainforest, Prairie Creek Redwoods State Park, California, USA.

Jack Dykinga / Old growth Redwood trees (Sequoia sempervirens) and Red cedar (Thuja plicata) in temperate rainforest with sunlight through trees, Prairie Creek Redwoods State Park, California, USA.

Nigel Cattlin / Thuja needle scorch, cedar or Keithia leaf blight (Didymascella thujina) fruiting bodies on western red cedar (Thuja plicata) leaflets

Phil Savoie / Red cedar tree (Thuja plicata), Wye Valley, Monmouthshire, Wales UK, September.

Phil Savoie / View into the canopyof Western red cedar trees (Thuja plicata) Wye Valley, Monmouthshire, Wales, UK. September.

Phil Savoie / Western red cedar (Thuja plicata) tree trunk, Wye Valley, Monmouthshire, Wales, UK. September.

Marie Read / Hermit thrush (Catharus guttatus) feeding on blue juniper berry (cone) of Eastern Red-Cedar (Juniperus virginiana) in mid-November, Freeville, New York, USA.