Jussi Murtosaari / Two Brown bear (Ursus arctos) males, fighting, Finland. August.

Jussi Murtosaari / Fieldfare (Turdus pilaris) perched in Rowan (Sorbus sp.) tree, feeding on berries, Finland. October.

Jussi Murtosaari / Blue-cheeked bee-eater (Merops persicus) perched on branch, Finland. June.

Jussi Murtosaari / Two Broad-bordered bee hawkmoths (Hemaris fuciformis) nectaring on wildflower, Finland. July.

Jussi Murtosaari / Grey wolf (Canis lupus) shaking fur dry after swimming, Finland. August.

Jussi Murtosaari / Common glow-worm (Lampyris noctiluca) female, resting on leaf, glowing, Finland. July.

Jussi Murtosaari / Bank vole (Clethrionomys glareolus) standing on hind legs, feeding on Strawberry (Fragaria sp.) leaves, Finland. July.

Jussi Murtosaari / Lesser purple emperor butterfly (Apatura ilia) male, in flight, Finland. July.

Jussi Murtosaari / Peacock butterfly (Aglais io) in flight over wildflowers, Finland. May.

Pal Hermansen / Damaged road, washed away by one night´s rainfall, Follo, Norway. August, 2023.

Pal Hermansen / Taxi submerged in floodwater after heavy rain, Follo, Norway. August, 2023.

Pal Hermansen / Musk ox (Ovibos moschatus) pair mating, Dovrefjell-Sunndalsfjella National Park, Norway. September.

Pal Hermansen / Brimstone butterfly (Gonepteryx rhamni) in flight in bright sunshine, Follo, Akershus, Norway. July.

Pal Hermansen / Satyr pug moth (Eupithecia satyrata) flying off from flowerhead in meadow, Lofoten, Norway. June. Multiple-exposure.

Pal Hermansen / Yelllow dung fly (Scathophaga stercoraria) pair, mating on sheep dung, Lofoten, Norway. June.

Pal Hermansen / Group of male Toads (Bufo bufo) trying to mate with female, underwater in small lake, Akershus, Norway. May.

Ross Hoddinott / Tank blocks from World War 2, along the shoreline on beach at sunset, Alnmouth beach, Northumberland, UK. October 2023.

Roger Powell / Red-throated diver (Gavia stellata) male, running over the water at speed and taking flight, Kongsfjordfjellet, Finnmark, Norway. June.

Roger Powell / Two Ruffs (Calidris pugnax) male, fighting at the lek, Pokka, Finland, Lapland. May.

Roger Powell / Two Ruffs (Calidris pugnax) male, fighting at the lek, Pokka, Finland, Lapland. May.

Will Watson / View of Saefellsjokull, a 700,000 year old stratovolcano and an old lava field with moss heath, Saefellsnes Peninsula, Iceland. September, 2023.

Staffan Widstrand / RF - Two Ruffs (Philomachus pugnax) male, fighting at lek site, Varanger Peninsula, Finnmark, Norway. June. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF - Atlantic guillemot (Uria aalge) standing on rock spreading its wings at sunset, with colony behind, Hornoya bird cliff Island, Vardoe, Varanger Peninsula, Finnmark, Norway. June. (This image may...

Staffan Widstrand / RF - Atlantic puffin (Fratercula arctica) portrait, Hornoya bird cliff Island, Vardoe, Varanger Peninsula, Finnmark, Norway. June. (This image may be licensed either as rights managed or royalty free....

Terry Whittaker / Atlantic puffin (Fratercula arctica), Grimsey Island, Iceland, June.

Staffan Widstrand / RF - Ruff (Philomachus pugnax) male, displaying at lek site, Varanger Peninsula, Finnmark, Norway. June. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / Brambling (Fringilla montifringilla) perched on branch, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Oystercatcher (Haematopus ostralegus) walking over pebbles on the shore, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Northern hawk owl (Surnia ulula) perched on branch, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Whimbrel (Numenius phaeopus) portrait, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Long-tailed skua (Stercorarius longicaudus) standing on wet ground, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / European golden plover (Pluvialis apricaria) calling, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Willow ptarmigan grouse (Lagopus lagopus) standing on a rock, Varanger Peninsula, Finnmark, Norway. November.

Staffan Widstrand / Red-necked phalarope (Phalaropus lobatus) on water, Varanger Peninsula, Finnmark, Norway.

Staffan Widstrand / Greenfinch (Carduelis chloris) in flight, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Whimbrel (Numenius phaeopus) standing on stony ground, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Atlantic puffin (Fratercula arctica) head portrait, Hornoya bird cliff island, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Arctic skua (Stercorarius parasiticus) in flight, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Kittiwake (Rissa tridactyla) portrait, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Whimbrel (Numenius phaeopus) portrait, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Hoary redpoll (Acanthis hornemanni) perched on dead tree trunk, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Bar-tailed godwit (Limosa lapponica) portrait, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Red-necked phalarope (Phalaropus lobatus) on water, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Three Ruff (Philomachus pugnax) males displaying on lek, with two females walking by, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Two Ruff (Philomachus pugnax) males, fighting at lek site with females in background, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Shags (Phalacrocorax aristotelis) flock perched on cliff top at sunset, Hornoya bird cliff island, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Atlantic guillemot (Uria aalge) calling and flapping wings at sunset with colony in background, Hornoya bird cliff island, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Two Ruff (Philomachus pugnax) males, displaying at lek site, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Arctic skua (Stercorarius parasiticus) portrait, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Shag (Phalacrocorax aristotelis) head portrait, Hornoya bird cliff island, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / Atlantic guillemot (Uria aalge) pair, in courtship display, with colony in background, Hornoya bird cliff island, Varanger Peninsula, Finnmark, Norway. June.

Staffan Widstrand / RF - Whimbrel (Numenius phaeopus) portrait, Varanger Peninsula, Finnmark, Norway. June. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF - Atlantic puffin (Fratercula arctica) in flight, Hornoya bird cliff Island, Vardoe, Varanger Peninsula, Finnmark, Norway. June. (This image may be licensed either as rights managed or royalty free...

Staffan Widstrand / RF - European golden plover (Pluvialis apricaria) portrait, Varanger Peninsula, Finnmark, Norway. June. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF - Red-necked phalarope (Phalaropus lobatus) on water, calling, Varanger Peninsula, Finnmark, Norway. June. (This image may be licensed either as rights managed or royalty free.)

Paul Harcourt Davies / View of the ancient city of Orvieto surrounded by orchards and Cherry (Prunus avium) trees growing along path, viewed in spring from the north side, Orvieto, Umbria, Italy. March, 2017.

Ingo Arndt / Ice formation on black, volcanic beach, Jokulsarlon, Iceland. August, 2023.

Espen Bergersen / Two Orcas (Orcinus Orca) swimming at sea surface with mountains in background, Skjervoy, Troms, Norway, Norwegian Sea. October.

Espen Bergersen / Four Herring gulls (Larus argentatus) in flight, one with remains of a Herring in its beak, being chased by the other three, Skjervoy, Troms, Norway, Norwegian Sea. October

Espen Bergersen / Fieldfare (Turdus pilaris) perched in Rowan (Sorbus aucuparia) tree, feeding on berries, Troms, Norway. October.

Espen Bergersen / Common starling (Sturnus vulgaris) perched in Rowan (Sorbus aucuparia) tree, feeding on berries, Troms, Norway. October. Cropped

Espen Bergersen / European herring gull (Larus argentatus) fishing, Andoya, Nordland, Norway. August.

Espen Bergersen / Fog covering the sea and landscape at dawn, viewed from Tromtind mountain, Kvaloya, Troms, Norway. July, 2023.

Espen Bergersen / Reindeer (Rangifer tarandus) domestic, walking down a mountain at dusk, Troms, Norway. July.

Espen Bergersen / Red-throated diver (Gavia stellata) running across surface of lake, Svalbard, Norway. July

Espen Bergersen / Barnacle goose (Branta leucopsis) resting with chicks nestling among its feathers to keep warm, Svalbard, Norway. July.

Espen Bergersen / Little auks (Alle alle) in flight close to breeding colony at night silhouetted by the midnight sun, Bjorndalen, Svalbard, Norway. July.

Espen Bergersen / Snow bunting (Plectrophenax nivalis) chicks in nest, begging for food, Svalbard, Norway. July.

Espen Bergersen / Kittiwake (Rissa tridactyla) sitting on nest at night, Troms, Norway. July

Espen Bergersen / Full moon over mountain peak, viewed from Naustholmen, Nordland, Norway. May, 2023.

Espen Bergersen / Long-eared owl (Asio otus) hunting over a wildflower meadow, Troms, Norway. June. Cropped

Espen Bergersen / Ruff (Philomachus pugnax) male, head portrait, moulting mating plumage feathers, Troms, Norway. June.

Espen Bergersen / Moose (Alces alces) reaching head up to graze on Willow tree, Troms, Norway, March. Cropped.

Espen Bergersen / Moose (Alces alces) feeding on a tree, Troms, Norway. March.

Espen Bergersen / Boat on the sea shrouded in mist in winter with snow covered trees and mountains, Kvaloya, Troms, Norway. February, 2023.

Espen Bergersen / Ruff (Philomachus pugnax) male, watching its Mosquito (Culicidae) prey, Troms, Norway. June. Cropped

Espen Bergersen / Ice-covered trees in snow, Kvaloya, Troms, Norway. February.

Danny Green / Polar bear (Ursus maritimus) male, walking across snow covered landscape with mountains in background, Svalbard, Norway. April.

Danny Green / Ringed seal (Pusa hispida) pup, resting on ice, Svalbard, Norway. April.

Danny Green / Goshawk (Accipiter gentilis) perched on branch, with breath visible in the cold air, Finland. March.

Danny Green / Northern gannets (Morus) pair, with nesting material in beak, head portrait, Great Saltee Island, Republic of Ireland. May.

Mike Read / Sand dunes and slacks covered in Marram grass (Ammophila arenaria), Braunton Burrows Nature Reserve, North Devon, England, UK, October.

Mike Read / Sand dunes and slacks covered in Marram grass (Ammophila arenaria), Braunton Burrows Nature Reserve, North Devon, England, UK, October.

Mike Read / Sand dunes and slacks covered in Marram grass (Ammophila arenaria), Braunton Burrows Nature Reserve, North Devon, England, UK, October.

Bret Charman / Arctic fox (Vulpes lagopus) 'blue morph' standing in snow with Sea urchin (Echinoidea) prey in mouth with mountains behind, Hornstrandir Nature Reserve, Iceland. March.

Bret Charman / Arctic fox (Vulpes lagopus) 'blue morph' standing on snowy ridge, looking back, Hornstrandir Nature Reserve, Iceland. March.

Bret Charman / Two Arctic foxes (Vulpes lagopus) 'blue morph', in snow, female attacking male to defend her cubs, Hornstrandir Nature Reserve, Iceland. March.

Bret Charman / Wolverine (Gulo gulo) juvenile, standing on a log in forest, eastern Finland. June.

Bret Charman / Grey wolf (Canis lupus) male, portrait, Kuhmo, Finland, June.

Bret Charman / Grey wolf (Canis lupus) male, walking along track in marshland, Finland. June.

Bret Charman / Grey wolf (Canis lupus) male, standing in swampland in boreal forest, Kuhmo, Finland. July.

Bret Charman / Two Great grey owl (Strix nebulosa) chicks, perched in nest hole in dead tree, calling, Finland. July.

Bret Charman / Arctic fox (Vulpes lagopus) 'blue morph' walking through blizzard, Hornstrandir Nature Reserve, Iceland. March.

Bret Charman / Arctic fox (Vulpes lagopus) 'blue morph', portrait, Hornstrandir Nature Reserve, Iceland. March.

Bret Charman / Four Atlantic walruses (Odobenus rosmarus) swimming close to shore with colony resting in background, Nordaustlandet, Svalbard Archipelago, Norway. July.

Bret Charman / Arctic fox (Vulpes lagopus) leaping up vertical rock face, hunting for food at seabird colony, Alkefjellet, Spitsbergen, Svalbard archipelago, Norway. July.