Staffan Widstrand / Arctic fox (Vulpes lagopus) in winter coat, resting in grass, Spitsbergen, Svalbard, Norway, September.

Bryan and Cherry Alexander / Chukchi girls, with their family's ancestral clan mark painted in reindeer blood on their face, a ritual during the Chukchi 'Festival of the Young Reindeer' during which young reindeer are sacrificed....

Bryan and Cherry Alexander / Dolgan reindeer / caribou herder carrying block of ice to be used for drinking water. Taymyr, Northern Siberia, Russia, 2004.

Ashley Cooper / King penguins (Aptenodytes patagonicus) with passengers from an expedition cruise. Salisbury Plain, South Georgia. February 2014.

Eric Baccega / Nenet herder inside tent with daughter and sons, wearing coats made with reindeer skin and fur. Yar-Sale district. Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Nenet woman sewing coat (malitsa) made with reindeer skin and fur, inside tent with pet dog. Yar-Sale district. Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Nenet elder with grandson dressed in winter coats, made from reindeer skin in tent. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Natacha Serotetto, portrait of Nenet herder in winter coat made from reindeer fur. The collar is made of arctic fox fur, black beaver fur strap decoration and felt ribbons. Yar-Sale district, Yamal, N...

Eric Baccega / Natacha Serotetto, portrait of Nenet herder in winter coat of reindeer fur. The collar is arctic fox fur with black beaver fur straps and felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Rus...

Eric Baccega / Ekaterina Yaptik, portrait of Nenet herder in winter coat made of reindeer fur. The collar is arctic fox fur with black beaver straps and felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Rus...

Eric Baccega / Ekaterina Yaptik, portrait of Nenet herder in winter coat made of reindeer fur. The collar is arctic fox fur with black beaver straps and felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Rus...

Eric Baccega / Tatiana Salinder, portrait of Nenet herder in winter coat made of reindeer fur. The collar is arctic fox fur. Yar-Sale district, Yamal, Northwest Siberia, Russia, April 2016

Eric Baccega / Tatiana Salinder, portrait of Nenet herder in winter coat of reindeer fur. The collar is arctic fox fur with black beaver fur and felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Russia. Apr...

Eric Baccega / Ekaterina Yaptik, portrait of Nenet herder in winter coat of reindeer fur. The collar is arctic fox fur with black beaver fur and felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Russia. Apr...

Eric Baccega / Ekaterina Yaptik, portrait of Nenet herder in winter coat of reindeer fur. The collar is arctic fox fur with black beaver fur and felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Russia. Apr...

Eric Baccega / Sergueï Chorolya, Nenet reindeer herder warmly dressed in reindeer fur coat. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Sergue Chorolya, Nenet reindeer herder warmly dressed in reindeer fur coat. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Ekaterina Yaptik, portrait of Nenet herder in winter coat of reindeer fur. The collar is arctic fox fur with black beaver fur and felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Russia. Apr...

Eric Baccega / Carolina Serotetto, Nenet teenager wearing sunglasses and traditional winter coat of reindeer fur holding smartphone. Yar-Sale district, Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Carolina Serotetto, Nenet teenager in traditional winter coat made with reindeer skin. The collar is arctic fox fur and black beaver with felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Rus...

Eric Baccega / Carolina Serotetto, Nenet teenager in traditional winter coat made with reindeer skin. The collar is arctic fox fur and black beaver with felt ribbons. Yar-Sale district, Yamal, Northwest Siberia, Rus...

Eric Baccega / Carolina Serotetto, Nenet teenager standing at entrance of her reindeer fur covered tent, warmly dressed in traditional coat. Yar-Sale district. Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Carolina Serotetto, Nenet teenager at entrance of reindeer fur covered tent, warmly dressed in traditional coat. Yar-Sale district. Yamal, Northwest Siberia, Russia. April 2016.

Eric Baccega / Carolina Serotetto, Nenet teenager at entrance of reindeer fur covered tent, warmly dressed in traditional coat. Yar-Sale district. Yamal, Northwest Siberia, Russia. April 2016.

Staffan Widstrand / Photographer Staffan Widstrand, Svalbard, Norway, September 2014. Model released.

Bryan and Cherry Alexander / Polar Photographers Bryan and Cherry Alexander in fur trimmed parkas, July 2012.

Bryan and Cherry Alexander / Young girl Nadia Takui eating specially prepared ritual food, including dried reindeer intestine and a sausage made from chopped reindeer meat and fat, during the Chukchi 'Festival of the Young Reind...

Bryan and Cherry Alexander / The men and children of the family place specially prepared food on the ground for the spirits during the Chukchi 'Festival of the Young Reindeer' during which young reindeer are sacrificed. Iultinsk...

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kerker, (knee length coverall) sitting at the edge of the polog (sleeping area) in a Yaranga (tent) at a reindeer herders' summer ca...

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kamleika (parka) reads a magazine at the front of the polog (sleeping area) in a Yaranga (tent) at a reindeer herders' summer camp....

Bryan and Cherry Alexander / Nadia Takui takes Rima Votgyrgina, age 18 months, to watch the reindeer during the Chukchi 'Festival of the Young Reindeer' out on the tundra. Iultinsky District, Chukotka, Siberia, Russia, August 201...

Bryan and Cherry Alexander / Nadia Takui takes Rima Votgyrgina, age 18 months, to watch the reindeer during the Chukchi 'Festival of the Young Reindeer' out on the tundra. Iultinsky District, Chukotka, Siberia, Russia, August 201...

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kerker (knee length coverall) outside a Yaranga (tent) at a reindeer herders' summer camp. Iultinsky District, Chukotka, Siberia, Ru...

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kamleika (parka) sits by the by the front of the polog (sleeping area) in a Yaranga (tent) at a reindeer herders' summer camp. Iulti...

Bryan and Cherry Alexander / Rita Votgyrgina, a Chukchi woman, softening a reindeer skin with a tradional scraping tool, outside her Yaranga (tent) at a reindeer herders' summer camp on the tundra. Iultinsky District, Chukotka, S...

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kerker (knee length coverall) outside a Yaranga (tent) at a reindeer herders' summer camp. Iultinsky District, Chukotka, Siberia, Ru...

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kerker (knee length coverall) outside a Yaranga (tent) at a reindeer herders' summer camp. Iultinsky District, Chukotka, Siberia, Ru...

Bryan and Cherry Alexander / Sasha Takui, a hukchi reindeer herder, working with his reindeer at their autumn pastures. He is holding a curved throwing stick (Kenunen) which he uses to change the direction his reindeer are going....

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kamleika (hooded parka) at a reindeer herders' summer camp. Iultinsky District, Chukotka, Siberia, Russia, August 2013.

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kerker (knee length coverall) outside a Yaranga (tent) at a reindeer herders' summer camp. Iultinsky District, Chukotka, Siberia, Ru...

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kerker (knee length coverall) outside a Yaranga (tent) at a reindeer herders' summer camp. Iultinsky District, Chukotka, Siberia, Ru...

Bryan and Cherry Alexander / Sasha Takui, a Chukchi reindeer herder, pulls up the hood of his Kukhlyanka (reindeer skin parka) while out working with his reindeer at their autumn pastures. Iultinsky District, Chukotka, Siberia, R...

Bryan and Cherry Alexander / Sasha Takui, a Chukchi reindeer herder, coils up his lasso, while out working with his reindeer at their autumn pastures. Iultinsky District, Chukotka, Siberia, Russia, August 2013.

Frederique Olivier / Emperor penguin (Aptenodytes forsteri) chick portrait, on its final journey to the sea, Antarctica, December.

Cyril Ruoso / Snow Leopard (Uncia uncia) this coat was not confiscated because it was obvious that it is at least 40 years old and was made before the Snow Leopard pelt trade was forbidden, three animals have been...

Cyril Ruoso / Snow Leopard (Uncia uncia) this coat was not confiscated because it was obvious that it is at least 40 years old and was made before the Snow Leopard pelt trade was forbidden, three animals have been...

Cyril Ruoso / Snow Leopard (Uncia uncia) this coat was not confiscated because it was obvious that it is at least 40 years old and was made before the Snow Leopard pelt trade was forbidden, three animals have been...

Bryan and Cherry Alexander / Kosta, a Selkup man, returns to a winter camp after hunting Capercaille, Krasnoselkup, Yamal, Western Siberia, Russia 2012

Bryan and Cherry Alexander / Yalena, an elderly Selkup woman holds sable skins caught by her husband at their winter camp in the forest. Krasnoselkup, Yamal, Western Siberia, Russia 2012

Bryan and Cherry Alexander / Kosta, a Selkup hunter, setting a trap to catch sable in the forest in winter. Krasnoselkup, Yamal, Western Siberia. Russia 2012

Bryan and Cherry Alexander / Kosta, a Selkup hunter, rests on his snowmobile while out checking his sable traps in the forest. Krasnoselkup, Yamal, Western Siberia, Russia 2012

Bryan and Cherry Alexander / Gennadiy Kubolev, a Selkup hunter, with his draft reindeer on the frozen Shirta River, Krasnoselkup, Yamal, Western Siberia, Russia 2012

Bryan and Cherry Alexander / Kosta, a Selkup man, out hunting in the forest on skiis, Krasnoselkup, Yamal, Western Siberia, Russia 2012

Colin Monteath / Golden Eagle (Aquila chrysaetos) used for hunting, with Kazak handler competing at winter festival, Mongolia

Colin Monteath / Golden Eagle (Aquila chrysaetos) used for hunting, with Kazak handler competing at winter festival, Mongolia

Colin Monteath / Golden Eagle (Aquila chrysaetos) used for hunting, with Kazak handler competing at winter festival, Mongolia

Bryan and Cherry Alexander / Chukchi reindeer herder erecting frame of Yaranga (traditional tent). Chukotskiy Peninsula, Chukotka, Siberia, Russia, 2010. 40 BELOW bookplate.

Bryan and Cherry Alexander / Dolgan herder covered in frost while working with his Reindeer / Caribou (Rangifer tarandus) during winter. Taymyr, Northern Siberia, Russia. 40 BELOW bookplate.

Bryan and Cherry Alexander / Khanty women in traditional dress at a Spring festival in the village of Pitlyar. Yamal, Western Siberia, Russia, 2006. 40 BELOW bookplate.

Bryan and Cherry Alexander / Chukchi reindeer herder iced up at -30 C during winter. Chukotskiy Peninsula, Chukotka, Siberia, Russia, 2010. 40 BELOW bookplate.

Bryan and Cherry Alexander / Portrait of Inuit hunter from Igloolik, Nunavut, Canada, 1992. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit man dressed in Reindeer / Caribou skin clothes. Igloolik, Nunavut, Canada, 1990. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit hunter dressed in traditional Reindeer / Caribou skin clothing, travelling by dog sled on winter hunt. Igloolik, Nunavut, Canada, 1990. 40 BELOW bookplate.

Bryan and Cherry Alexander / Nenets woman comforting baby inside Reindeer skin tent. Yamal, Siberia, 1996. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit hunter with Kakivak (fishing spear) and caught fish, Igloolik, Nunavut, Canada, 1993. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit hunter in Reindeer / Caribou skin clothing trying to drive dog sled over ice ridge. Igloolik, Nunavut, Canada, 1993. 40 BELOW bookplate.

Bryan and Cherry Alexander / Nenets men checking fishing net set under ice on lake in the Gydan Peninsula. Western Siberia, Russia, 2000. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit hunter with Kakivak (fishing spear) and caught Arctic charr (Salvelinus alpinus). Igloolik, Nunavut, Canada, 1993. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit hunter skinning seal, Northwest Greenland, 1980. 40 BELOW bookplate.

Bryan and Cherry Alexander / Nenets woman and daughter dressed up for spring Reindeer / Caribou (Rangifer tarandus) herders' festival. Yamal, Northwest Siberia, Russia, 2006. 40 BELOW bookplate.

Bryan and Cherry Alexander / Portrait of Nganasan woman, Taymyr Peninsula, Northern Siberia, 2004. 40 BELOW bookplate.

Bryan and Cherry Alexander / Chukchi reindeer herder standing by fire he has made for traditional ritual. Chukotskiy Peninsula, Chukotka, Siberia, Russia, 2010. 40 BELOW bookplate.

Bryan and Cherry Alexander / Chukchi reindeer herder using bow drill to make fire during traditional ritual. Chukotskiy Peninsula, Chukotka, Siberia, Russia, 2010. 40 BELOW bookplate.

Bryan and Cherry Alexander / Inuit man hauling his floe edge boat while seal hunting at the ice edge. Igloolik, Nunavut, Canada, 1990.

Bryan and Cherry Alexander / Two Inuit hunters eating Arctic char (Salvelinus alpinus) wearing caribou skin clothes. Igloolik, Nunavut, Canada, 1990. Editorial use only.

Bryan and Cherry Alexander / Inuk man from Igloolik sitting inside an Igloo. Nunavut, Canada, 1990. Editorial use only.

Bryan and Cherry Alexander / Inuk man from Igloolik with frozen snow on his face and clothing. Nunavut, Canada, 1990. Editorial use only.

Bryan and Cherry Alexander / Inuk in fur clothing on ice ridge, looking for seals with telescope. Igloolik, Nunavut, Canadian Arctic, 1995.

Bryan and Cherry Alexander / Inuk in fur clothing steadying his telescope on snowmobile while out hunting. Igloolik, Nunavut, Canada, 1995.

Bryan and Cherry Alexander / Arctic photographer Bryan Alexander holding his camera, dressed in caribou furs at minus 40 degrees. Nunuvut, Canada, 1987. Editorial use only.

Bryan and Cherry Alexander / Two Inuit men making tea during a break on a hunting trip. Igloolik, Nunavut, Canada, 1987.

Bryan and Cherry Alexander / Fur clad Inuit children outside their snow covered home on Baffin Island, Nunavut, Canada, 1987. Editorial use only.

Bryan and Cherry Alexander / Inuit boy dressed in traditional reindeer skin parka. Igloolik, Nunavut, Canada, 1987.

Bryan and Cherry Alexander / Inuit children dressed in reindeer skin clothing. Baffin Island, Nunavut, Canada, 1987. Editorial use only.

Bryan and Cherry Alexander / Inuit woman carrying her baby in an Amaut (hooded parka) on her back. Igloolik, Nunavut, Canada, 1987. Editorial use only.

Bryan and Cherry Alexander / Inuit hunter with snow frozen on his face and clothing. Igloolik, Nunavut, Canada, 1987. Editorial use only.

Bryan and Cherry Alexander / Nenets spectator using his mobile phone to photograph a reindeer race at a herders festival in the Yamal. Western Siberia, Russia, February 2009. Editorial use only.

Bryan and Cherry Alexander / Nenets girl, warmly dressed in reindeer skin clothing, carrying snow to melt for water. Yamal, Northwest Siberia, Russia, February 2007. Editorial use only.

Bryan and Cherry Alexander / Nenets girl playing with reindeer herding dog at winter camp on the tundra. Yamal, Northwest Siberia, Russia, February 2007. Editorial use only.

Bryan and Cherry Alexander / Nenets girl playing with her family's Laika reindeer herding dog at their winter camp on the tundra. Yamal, Northwest Siberia, Russia, February 2007.

Bryan and Cherry Alexander / Komy girl, aged 2, playing in the snow at her family's winter camp. Yamal, Northwest Siberia, Russia, February 2007. Editorial use only.

Bryan and Cherry Alexander / Chukchi reindeer herder dressing in traditional reindeer skin clothing inside the polog (inner tent) of his Yaranga (traditional tent). Chukotskiy Peninsula, Chukotka, Siberia, Russia, 2010

Bryan and Cherry Alexander / Chukchi herder iced up at -30 C during winter. Chukotskiy Peninsula, Chukotka, Siberia, Russia, spring 2010

Bryan and Cherry Alexander / Chukchi reinder herder inside his Yaranga (traditional tent). Chukotskiy Peninsula, Chukotka, Siberia, Russia, 2010

Bryan and Cherry Alexander / Chukchi reindeer herder erecting frame of a Yaranga (traditional tent). Chukotskiy Peninsula, Chukotka, Siberia, Russia, spring 2010

Bryan and Cherry Alexander / Chukchi reindeer herder couple at their winter camp on the tundra. Chukotskiy Peninsula, Chukotka, Siberia, Russia, spring 2010