Nature Production / Cross-section of Walnut seed / nut {Juglans sp} Japan

Nature Production / Japanese Walnut staminate flowers {Juglans ailantifolia} Japan

Nature Production / Japanese Walnut {Juglans ailantifolia} new sping leaves, Tokyo, Japan

Nature Production / Cross-section of immature Japanese Walnut {Juglans ailantifolia} Japan

Nature Production / Walnut {Juglans regia var. orientis} Japan

Nature Production / Walnut cone {Platycarya strobilacea} Japan

Miles Barton / Carrion crow {Corvus corone} feeding on crushed walnut placed on road purposefully so that vehicle will crush it, Sendai, Japan

Konstantin Mikhailov / Man felling a tree with power saw, Primorsky region, Ussuriland, Far East Russia

Yuri Shibnev / Disruption and deforestation at logging camp in Ussuri Forest, Primorskiy Region, Far East Russia

Konstantin Mikhailov / Cassiope (Cassiope sp) flowering in alpine zone of Sikhote-Alin region, Primorsky, Far East Russia (Ussuriland)

Yuri Shibnev / Aerial view of industrial saw mill, Verhni Pereval, Primorsky, Ussuriland, Russia

Konstantin Mikhailov / Looking down onto Birkin river with surrounding forests, Sikhote-Alin, Primorsky region, Far East Russia (Ussuriland).

Yuri Shibnev / Autumn woodland along Birkin river, Primorskiy region, Ussuriland, Russia

Philippe Clement / Close-up of bark of Walnut tree {Juglans regia} Belgium

Doug Wechsler / Hickory horned devil / Royal walnut moth pupa {Citheronia regalis} Pennsylvania, USA - chrysalis

Gerry Ellis / English Black Walnut (Juglans regia) grove in northern central California, native to Europe

Konstantin Mikhailov / Local hunter / trapper Sikhote-Alin region, Primorsky, Far East Russia 1995

Konstantin Mikhailov / Alpine zone of Sikhote-Alin region with flower, Primorsky, Far East Russia

Konstantin Mikhailov / Manchurian walnut tree {Juglans manshurica} above Birkin River, Primorsky, Russia, Far East Russia Sikhote-alin range, (Ussuriland)

Suzi Eszterhas / American Beaver (Castor canadensis) conservationist, Guthrum Purdin, brushing six-week-old orphaned kit, Lindsay Wildlife Experience, Walnut Creek, California

Suzi Eszterhas / American Beaver (Castor canadensis) conservationist, Guthrum Purdin, examining six-week-old orphaned kit, Lindsay Wildlife Experience, Walnut Creek, California

Suzi Eszterhas / American Beaver (Castor canadensis) conservationist, Guthrum Purdin, listening to sinuses of sick six-week-old orphaned kit, Lindsay Wildlife Experience, Walnut Creek, California

Thomas Marent / English Black Walnut (Juglans regia) tree, Zug, Switzerland

Thomas Marent / Walnut (Juglans sp) trees in autumn color near house, Zug, Switzerland

Thomas Marent / English Black Walnut (Juglans regia) trees, Zug, Switzerland

Chris Shields / Illustration of Walnut orb-weaver spider (Nuctenea umbratica), Araneidae.

Premaphotos / Walnut orb weaver spider (Nuctenea / Araneus umbratica) female on rug, UK

Nature Production / Walnut Leaf Beetle {Gastrolina depressa} on leaf that it has fed on, Japan

Miles Barton / Carrion crow waits for traffic to stop at red lights before placing walnut on road. Japan

Mike Read / Caucasian wingnut (Pterocarya fraxinifolia) tree beside footpath, Upper Gardens, Bournemouth, Dorset, England, UK, May.

Mateusz Piesiak / Rook (Corvus frugilegus) standing in autumn leaves with a walnut in beak, stockpiling for the winter, Wroclaw, Lower Silesia, Poland. November.

Chris Mattison / Walnut orb-weaver spider (Nuctenea umbratica) juvenile, resting on a leaf, Catbrook, Monmouthshire, Wales, UK. January. Focus-stacked image.

Lewis Jefferies / Scarlet macaw (Ara macao) preening wing feathers and looking around, whilst perched in walnut tree, Corcovado National Park, Costa Rica. Critically Endangered.

Lewis Jefferies / Scarlet macaw (Ara macao) feeding on walnut whilst perched in walnut tree, Corcovado National Park, Costa Rica. Critically Endangered.

Lewis Jefferies / Scarlet macaw (Ara macao) feeding on walnut whilst perched in walnut tree and dropping the nut before bowing, Corcovado National Park, Costa Rica.

Joel Sartore / Photo Ark / Southwestern pond turtle (Actinemys pallida) coming out of its shell and extending its neck. The animal looks around. Lindsay Wildlife Experience, Walnut Creek, California. Captive.

Joel Sartore / Photo Ark / Southwestern pond turtle (Actinemys pallida) extending its neck and looking around, Lindsay Wildlife Experience, Walnut Creek, California. Captive.

Joel Sartore / Photo Ark / A close up of a Great horned owl's (Bubo virginianus) head. The animal looks around. Lindsay Wildlife Experience, Walnut Creek, California. Captive.

Joel Sartore / Photo Ark / A close up of a Great horned owl's (Bubo virginianus) head looking around. Lindsay Wildlife Experience, Walnut Creek, California. Captive.

Konrad Wothe / Red squirrel (Sciurus vulgaris) sitting in tree feeding on walnut, Bavaria, Germany. June.

Nigel Cattlin / Walnuts (Juglans regia) maturing green fruit on tree, Berkshire, UK. July.

Ch'ien Lee / Lion Beetle (Ulochaetes leoninus), Walnut Creek, California

Juergen & Christine Sohns / English Black Walnut (Juglans regia) nuts, Germany

Juergen & Christine Sohns / Almond (Prunus dulcis), Hazelnut (Corylus avellana), and walnut nuts, Germany

Juergen & Christine Sohns / Almond (Prunus dulcis), Hazelnut (Corylus avellana), and walnut nuts, Germany

Milan Radisics / Red fox (Vulpes vulpes) vixen sniffing jars of homemade walnut brandy (palinka) in garden at night. Vertes Mountains, Hungary. Image taken with a camera trap.

Robert Thompson / Regal moth (Citheronia regalis) resting on leaf with black background.

Nigel Cattlin / Walnut leaf gall mite (Aceria erinea) white blisters of mites on the lower surface of a walnut tree (Juglans regia) leaf, Berkshire, England, UK, June

Nigel Cattlin / Walnut leaf gall mite (Aceria erinea) blisters on the upper surface of a walnut tree (Juglans regia) leaf, Berkshire, England, UK, June

Nigel Cattlin / Walnut leaf gall mite (Aceria erinea) blisters on the upper surface of a walnut tree (Juglans regia) leaf, Berkshire, England, UK, June

Nigel Cattlin / Young fruit from female flowers on a walnut tree (Juglans regia) with young leaves in spring, Berkshire, England, UK, May

Nigel Cattlin / Young fruit from female flowers on a walnut tree (Juglans regia) with young leaves in spring, Berkshire, England, UK, May

Nigel Cattlin / Male catkins on a walnut tree (Juglans regia) with young leaves in spring, Berkshire, England, UK, May

Nigel Cattlin / Male catkins on a walnut tree (Juglans regia) with young leaves in spring, Berkshire, England, UK, May

Linda Pitkin / Walnut (Juglans regia), catkins and young foliage, at edge of field, Surrey, England, May.