Alan Williams / View of dam at the south end of the Claerwen reservoir in the Elan Valley, near Rhayader, Powys, Wales, UK. November, 2022.

Oliver Hellowell / RF - Snowdrops (Galanthus sp.) in flower on woodland floor, Blackdown hills, Somerset, UK. February. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Robin (Erithacus rubecula) perched on mossy branch, Bishopswood, Somerset, UK. May. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Robin (Erithacus rubecula) juvenile, perched on branch, Bishopswood, Somerset, UK. May. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Chaffinch (Fringilla coelebs) male, perched on lichen covered branch, Glencoe, Scotland, UK. October. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Robin (Erithacus rubecula) perched on on mossy log, Bishopswood, Somerset, UK. April. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Greenfinch (Chloris chloris) male, perched on mossy log, Bishopswood, Somerset, UK. April. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - European goldfinch (Carduelis carduelis) perched in Apple tree (Malus domestica), Bishopswood, Somerset, UK. April. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Great spotted woodpecker (Dendrocopos major) juvenile, perched on mossy log, Bishopswood, Somerset, UK. June. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Blue tit (Cyanistes caeruleus) perched on a bare branch, Bishopswood, Somerset, UK. October. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Blue tit (Cyanistes caeruleus) perched on a stick in snow, Bishopswood, Somerset, UK. February. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / Lenten rose (Helleborus orientalis) in flower, UK. February.

Oliver Hellowell / Snowdrops (Galanthus sp.) in flower on woodland floor, Blackdown Hills, Somerset, UK. February.

Oliver Hellowell / Pheasant (Phasianus colchicus) female, head and shoulder portrait, Bishopswood, Somerset, UK. February.

Oliver Hellowell / Marsh tit (Poecile palustris) perched on metal garden sculpture, Bishopswood, Somerset, UK. January. Cropped.

Oliver Hellowell / Grey heron (Ardea cinerea) standing on wooden fence, Trinity Waters fishery, Bridgwater, Somerset, UK. May. Cropped.

Oliver Hellowell / Grey heron (Ardea cinerea) standing on wooden fence, Trinity Waters fishery, Bridgwater, Somerset, UK. May.

Oliver Hellowell / Bullfinch (Pyrrhula pyrrhula) male, perched on wooden fence post, Bishopswood, Somerset, UK. December. Cropped.

Oliver Hellowell / Starling (Sturnus vulgaris) feeding on fat and seed filled coconut shell bird feeder, Bishopswood, Somerset, UK. March.

Oliver Hellowell / Starling (Sturnus vulgaris) perched on coconut shell bird feeder, Bishopswood, Somerset, UK. February.

Oliver Hellowell / View of mountains in Glencoe from The Three Sisters viewpoint, Glencoe, Scotland, UK. October, 2022.

Oliver Hellowell / Mountain stream flowing down mountainside, Glencoe, Scotland, UK. October, 2022.

Oliver Hellowell / Maple tree (Acer sp.) with autumnal foliage overhanging pond, Glencoe Lochan, Glencoe, Scotland, UK October.

Oliver Hellowell / Fly agaric mushroom (Amanita muscaria) on woodland floor, Glencoe lochan, Glencoe, Scotland, UK. October. Cropped.

Oliver Hellowell / Robin (Erithacus rubecula) perched on fallen apple in snow, Bishopswood, Somerset, UK. January.

Oliver Hellowell / Red deer (Cervus elaphus) female with fawn standing in upland scrub, Glen Etive, Scotland, UK. October. Cropped.

Oliver Hellowell / Red deer (Cervus elaphus) female, standing in long grass, Glen Etive, Scotland, UK. October.

Oliver Hellowell / Blue tit (Cyanistes caeruleus) perched on mossy stump, Bishopswood, Somerset, UK. September. Cropped.

Oliver Hellowell / Robin (Erithacus rubecula) perched on mossy log with Bluebells (Hyacinthoides non-scripta) in background, Bishopswood, Somerset, UK. May. Cropped.

Oliver Hellowell / Robins (Erithacus rubecula ) pair perched on mossy log performing courtship display, with Bluebells (Hyacinthoides non-scripta) in background, Bishopswood, Somerset, UK. May. Cropped.

Oliver Hellowell / Blue tit (Cyanistes caeruleus) perched on lichen covered twig, Bishopswood, Somerset, UK. September. Cropped.

Oliver Hellowell / Great tit (Parus major) perched on lichen covered branch, Bishopswood, Somerset, UK. April. Cropped.

Oliver Hellowell / Marsh tit (Poecile palustris) perched on Flowering currant (Ribes sanguineum) stem, Bishopswood, Somerset, UK. April. Cropped.

Oliver Hellowell / Blue tit (Cyanistes caeruleus) perched on bird feeder, Bishopswood, Somerset, UK. October. Cropped.

Oliver Hellowell / Blue tit (Cyanistes caeruleus) perched on bare branch, Bishopswood, Somerset, UK. October. Cropped.

Oliver Hellowell / Fieldfare (Turdus pilaris) with puffed up feathers, perched in tree in snow, Bishopswood, Somerset, UK. February. Cropped.

Oliver Hellowell / European robin (Erithacus rubecula) standing in snow, Bishopswood, Somerset, UK. February. Cropped.

Oliver Hellowell / Marsh tit (Poecile palustris) perched on rotten log, Bishopswood, Somerset, UK. September. Cropped.

Joel Sartore / Photo Ark / Eurasian red squirrel (Sciurus vulgaris leucourus) looking up, portrait, Wildwood Trust, UK. Captive.

Joel Sartore / Photo Ark / Eurasian beaver (Castor fiber) head portrait, Moscow Zoo. Captive, occurs in Europe.

Emanuele Biggi / Lobster moth (Stauropus fagi) caterpillar, resting on twig, Genova, Italy. July.

Alan Williams / Sandstone outcrop at viewpoint on Thurstaston Hill looking across the River Dee Estuary to North Wales, Merseyside, UK. September, 2022.

Alan Williams / Dogwalker with two dogs walking across farmland in snowstorm, near Willaston, Wirral, UK. January, 2023.

Alan Williams / Potato (Solanum tuberosum) plant in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) plant in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) crop in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) plant in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) crop in flower in farm field, Cheshire, UK. June.

Alan Williams / Newly planted Potato (Solanum tuberosum) crop, Cheshire UK. May.

Alan Williams / View across forests and hills to Moel Siabod on the left with Mount Snowdon behind, Snowdonia, North Wales, UK. October, 2022.

Alan Williams / Footpath and farmland covered with hoar frost on a bitterly cold day in winter, near Neston, Cheshire, UK. December.

Alan Williams / View looking south east towards the Pen-y- garreg reservoir in the Elan Valley in autumn, near Rhayader, Powys, Wales, UK. November, 2022.

Alan Williams / Stone road bridge across Caban-coch Reservoir, Elan Valley, Powys, Wales, UK. November, 2022.

Alan Williams / Ripening Barley (Hordeum distichon) crop blowing in the wind, Wirral, Cheshire, UK. July.

Alan Williams / Footpath along the Shropshire Union Canal under the M53 motorway, Ellesmere Port, Cheshire, UK. October, 2022.

Manuel Gracia / European roller (Coracias garrulus) pair mating. Then the birds fly out of the frame briefly and one returns to the perch. Seville, Spain. (Sequence 2/2).

Manuel Gracia / European roller (Coracias garrulus) pair performing courtship feeding ritual and then mating. The male enters frame and presents an insect, the female takes the food and then they mate. After mating,...

Manuel Gracia / European roller (Coracias garrulus) pair performing courtship feeding ritual and then mating. The female enters frame and then calls to her mate. The male lands on the perch and presents an insect, sh...

Manuel Gracia / Close up of European roller (Coracias garrulus) pair performing courtship feeding ritual and then mating. The male enters frame and presents an insect, the female takes the food and then they mate. A...

Manuel Gracia / Close up of European roller (Coracias garrulus) female perched, holding an insect in her beak. The bird looks around and then flies out of frame. Seville, Spain. (Sequence 2/2).

Manuel Gracia / European roller (Coracias garrulus) pair performing courtship feeding ritual. The male is perched and the female lands on perch with food and then the male tries to take food from female. Seville, Spa...

Manuel Gracia / European roller (Coracias garrulus) perched on a branch. Another Roller enters the frame and lands on the same perch. The birds call and display to each other and then they're attacked by a Common kes...

Manuel Gracia / European roller (Coracias garrulus) males fighting over territory and female. The males roll off the hillside and out of the frame. Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) males violently fighting on a hillside. The birds peck at each other and continue to roll down the hill. Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) males fighting violently on a hillside. The birds' beaks are locked with one another. Seville, Spain.

Manuel Gracia / European rollers (Coracias garrulus) perched. Another bird enters frame and lands on the perch with others. Then the animals fight, over the nest, leaving the frame briefly. Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) enters the frame and lands on the perch. Another roller continuously attacks the perched bird, causing it to flee. The bird leaves the frame briefly and then return...

Manuel Gracia / European roller (Coracias garrulus) perched which attacks another roller as it lands on the perch, Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) pair perched. One bird flies into the nest hole briefly and then returns to the perch. The pair call to each other. Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) perched. The bird calls and then flies out of the frame. Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) lands near the nest of another roller. The bird flies out of the nest hole and attacks the perched bird. Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) pair leaving the nest hole. They fly out of nest hole one after the other. Seville, Spain.

Matthew Maran / Timelapse of sun setting over houses, Graham Road, London, UK.

Matthew Maran / Red fox (Vulpes vulpes) walking into frame and onto street, at nightime. The animal sniffs the ground as it walks around. A person walks up the street and doesn't pay any attention to the animal as it...

Andy Sands / Slime mould (Badhamia utricularis) early stage sporangia on a twig, Buckinghamshire, England, UK. December. Focus stacked.

Andy Sands / Slime mould (Badhamia utricularis) mature sporangia on a twig, Buckinghamshire, England, UK. December. Focus stacked.

Andy Sands / Fungus (Stilbella byssiseda) growing on Slime mould (Cribraria sp), Buckinghamshire, England, UK. October. Focus stacked.

Andy Sands / Slime mould (Stemonitopsis hyperopta), two sporangia growing between two (Cribraria cancellata) sporangia, Buckinghamshire, England, UK. September. Focus stacked.

Andy Sands / Slime mould (Physarum album) 1mm tall mature sporangia with one immature among them, Buckinghamshire, England, UK. November. Focus stacked.

Andy Sands / Slime mould (Comatricha nigra) four mature sporangia ready to release spores growing among fungal mat on rotting log, Buckinghamshire, England, UK. December. Focus stacked.

Andy Sands / Slime mould (Cribraria argillacea) group of developing sporangia on rotten log, Buckinghamshire, England, UK. June. Focus stacked.

Sylvain Cordier / Common pheasant (Phasianus colchicus) male, walking on dry ground, Penalajo, Castilla, Spain. February.

Sylvain Cordier / Iberian green woodpecker (Picus sharpei) standing on dry ground with legs apart, Sierra de Andujar Natural Park, Andalusia, Spain. February.

Sylvain Cordier / Red partridge (Alectoris rufa) walking over dry ground, Penalajo, Castilla, Spain. February.

Sylvain Cordier / RF - Iberian lynx (Lynx pardinus) walking over grass, Finca de Penalayo, Castilla, Spain. Endangered. (This image may be licensed either as rights managed or royalty free.)

Sylvain Cordier / Iberian lynx (Lynx pardinus) prowling, Finca de Penalayo, Castilla, Spain. Endangered.

Sylvain Cordier / Red kite (Milvus ilvus) perched on a stump, Penalajo, Castilla, Spain. February.

Sylvain Cordier / RF - Red partridge (Alectoris rufa) walking over dry ground, Penalajo, Castilla, Spain. February. (This image may be licensed either as rights managed or royalty free.)

Sylvain Cordier / Red partridge (Alectoris rufa) walking over dry ground, Penalajo, Castilla, Spain. February.

Sylvain Cordier / Red partridge (Alectoris rufa) walking over dry ground, Penalajo, Castilla, Spain. February.

Sylvain Cordier / Three Iberian magpies (Cyanopica cooki) perched on a tree stump, Sierra de Andujar Natural Park, Andalusia, Spain. February.

Sylvain Cordier / European magpie (Pica pica) standing on dry ground, Penalajo, Castilla, Spain. February.

Sylvain Cordier / Iberian lynx (Lynx pardinus) standing in grassland, Finca de Penalayo, Castilla, Spain. Endangered.

Sylvain Cordier / Iberian lynx (Lynx pardinus) walking over dry ground, Finca de Penalayo, Castilla, Spain. Endangered.

Sylvain Cordier / RF - Iberian lynx (Lynx pardinus) walking over dry ground, Finca de Penalayo, Castilla, Spain. Endangered. (This image may be licensed either as rights managed or royalty free.)

Sylvain Cordier / Iberian lynx (Lynx pardinus) walking over dry ground, Finca de Penalayo, Castilla, Spain. Endangered.