Jasper Doest / Arctic Fox (Alopex lagopus) in light snow fall, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) kits playing, Svalbard, Norway

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in spring, looking for carrion on sea ice, North Slope near Arctic Ocean, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in spring, looking for carrion on sea ice, North Slope near Arctic Ocean, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in spring, North Slope, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) pup inspects tundra near family's den, St George Island, The Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in blue phase on coastal cliff, Saint Paul Island, Pribilof Islands, Alaska

Thomas Mangelsen / Polar Bear (Ursus maritimus) and Arctic Fox (Alopex lagopus) on ice field, Hudson Bay, Churchill, Manitoba, Canada

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) pup in blue phase at entrance of burrow, Saint Paul Island, Pribilof Islands, Alaska

Thomas Mangelsen / Arctic Fox (Alopex lagopus) curled up resting in snow, Hudson Bay, near Churchill, Manitoba, Canada

Tom Vezo / Tufted Puffin (Fratercula cirrhata) pair on rock interacting, St Paul Island, Pribilof Islands, Alaska

Michio Hoshino / Arctic Fox (Alopex lagopus) two pups playing, Alaska

Michio Hoshino / Arctic Fox (Alopex lagopus) trio of pups playing, Alaska

Jim Brandenburg / Arctic Fox (Alopex lagopus) smelling snow, Ellesmere Island, Nunavut, Canada

Jim Brandenburg / Arctic Fox (Alopex lagopus) portrait, Ellesmere Island, Nunavut, Canada

Jim Brandenburg / Arctic Fox (Alopex lagopus) yawning, North America

David Tipling / Northern fur seal (Callorhinus ursinus) bull. St Paul Island, Pribilof's, Bering Sea, Alaska

Todd Pusser / Killer whale surfacing {Orcinus orca}, Pribilof Islands, Bering Sea, Alaska, USA

Tim Fitzharris / Arctic Fox (Alopex lagopus) in winter, native to North America

Tom Vezo / Least Auklet (Aethia pusilla) pair, Saint Paul Island, Pribilof Islands, Alaska

Tom Vezo / Least Auklet (Aethia pusilla), Saint Paul Island, Pribilof Islands, Alaska

Tom Vezo / Least Auklet (Aethia pusilla), Saint Paul Island, Pribilof Islands, Alaska

Loic Poidevin / Artic fox (Vulpes lagopus) sitting on rock, Pribilof Island, Alaska, USA, July

Jasper Doest / Arctic Fox (Alopex lagopus) kits suckling, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) cub on tundra, Svalbard, Norway

Oriol Alamany / Least auklet (Aethia pusilla) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Parakeet auklet (Aethia psittacula) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwakes (Rissa brevirostris) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwake (Rissa brevirostris) landing on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-faced cormorant (Phalacrocorax urile) pair at nest on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Arctic fox (Vulpes / Alopex lagopus) on cliff top searching for seabirds eggs, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwake (Rissa brevirostris) in flight, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Birdwatcher, Eulalia Vicens, watching Least auklets (Aethia pusilla) some on rocks, others flying, in the mist, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Snowy Owl (Bubo / Nyctea scandiaca) female on an antenna, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Sea cliffs with seabirds and village, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Brunnich's guillemot / Thick billed murre (Uria lomvia) and Kittiwakes nesting on sea cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Arctic tundra with Woolly lousewort (Pedicularis lanata) flowering, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-faced cormorant (Phalacrocorax urile) pair at nest on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Two Tufted puffins (Fratercula cirrhata) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwakes (Rissa brevirostris) nesting on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) colony on beach, Zapadni Rookery, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Alaska poppies (Papaver alaskanum) in flower, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Beach, Zapadni Bay with Rush Point in the distance, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Three Parakeet auklets (Aethia psittacula) on rocks, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklets (Aethia pusilla) in flight, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Domestic cat (Felis catus) sitting on window-sill, next to plants with an American flag, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) colony with St George village in the distance, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Tufted puffin (Fratercula / Lunda cirrhata) sitting on rock, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male with females and pups, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock in flight, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male with females, Reef Rookery, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Rock sandpiper (Calidris ptilocnemis) portrait, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Russian orthodox church (1936) in St George village, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Blue wooden house, St Paul, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Jacob's ladder (Polemonium sp) flowers in the arctic tundra, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock flying in light mist, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Sign prohibiting rat infested ships from landing, St George Island harbour, Pribilof Islands, Alaska, USA

Oriol Alamany / Gray crowned rosy finch (Leucosticte tephrocotis) male on fence post, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock flying in fog, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Nootka lupines (Lupinus nootkatensis) in flower near a wooden house, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Nootka lupines (Lupinus nootkatensis) in flower, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Alaska poppies (Papaver alaskanum) in flower, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Arctic fox (Alopex lagopus) lying in grass, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Kittiwake (Rissa tridactyla) in flight, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock in flight, Zapadni Bay with Rush Point in the background, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) on rock calling, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklets (Aethia pusilla) in flight, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male with females and pups, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) perched on rock, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male calling, Reef Rookery, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Snow bunting (Plectrophenax nivalis) feeding, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Woolly lousewort (Pedicularis lanata) in flower, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Fishing boat and crab traps with Nootka Lupines (Lupinus nootkatensis) flowering, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Rock sandpiper (Calidris ptilocnemis) on rock, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) females with pups, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Two Least auklets(Aethia pusilla) on seacliff, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklets (Aethia pusilla) on rock, one landing, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Person walking along road in mist with Russian orthodox church (1936) behind, St George, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Lapland longspur / bunting (Calcarius lapponicus) male, Saint Paul Island, Pribilof Islands, Alaska, USA

Jasper Doest / Arctic Fox (Alopex lagopus) pup feeding on prey, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) pup feeding on prey, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) pup feeding on prey, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) pup feeding on prey, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) pup feeding on prey, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) pup feeding on prey, Svalbard, Norway

Jasper Doest / Arctic Fox (Alopex lagopus) pup running across the tundra, Svalbard, Norway

Michio Hoshino / Arctic Fox (Alopex lagopus) resting on rock, Alaska

Matthias Breiter / Northern Fur Seal (Callorhinus ursinus) rookery, Pribilof Islands, Alaska

Matthias Breiter / Arctic Fox (Alopex lagopus) pup, Pribilof Islands, Alaska

Matthias Breiter / Northern Fur Seal (Callorhinus ursinus) bulls displaying, Pribilof Islands, Alaska

Matthias Breiter / Crested Auklet (Aethia cristatella) chick on cliff, Pribilof Islands, Alaska

Matthias Breiter / Northern Fur Seal (Callorhinus ursinus) bull and harem, Pribilof Islands, Alaska

Matthias Breiter / Northern Fur Seal (Callorhinus ursinus) bulls displaying, Pribilof Islands, Alaska

Matthias Breiter / Tufted Puffin (Fratercula cirrhata), Pribilof Islands, Alaska

Matthias Breiter / Common Murre (Uria aalge) group on cliff with Horned Puffin (Fratercula corniculata) pair, Pribilof Islands, Alaska