Pal Hermansen / Bearded seal (Erignathus barbatus) hauled out on ice, reflected in water. Svalbard, Norway. May.

Nick Garbutt / Walrus (Odobenus rosmarus) amongst group hauled out on shore. Spitsbergen, Svalbard, Norway. July.

Danny Green / Ringed seal (Pusa hispida) resting on ice, reflected in water. Svalbard, Norway. July.

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

Jordi Chias / Crabeater seals (Lobodon carcinophaga) resting on ice floating ice sheet, Antarctic Peninsula, Antarctica.

Jordi Chias / Leopard seal (Hydrurga leptonyx) resting over an iceberg, Antarctic Peninsula, Antarctica.

Jordi Chias / Leopard seal (Hydrurga leptonyx) resting over an iceberg, Antarctic Peninsula, Antarctica.

Jordi Chias / Weddell seal (Leptonychotes weddellii) hauled out on ice, Antarctic Peninsula, Antarctica.

SCOTLAND: The Big Picture / Grey seal (Halichoerus grypus) huge group hauled out on a beach, Island of Mingulay, west coast of Scotland. May.

David Tipling / Grey seal (Halichoerus grypus) female in surf, Horsey, Norfolk, England, UK, February.

Stefan Christmann / Weddell seal (Leptonychotes weddellii) female hauled out with pup, Atka Bay, Queen Maud Land, Antarctica. October.

Gerrit Vyn / Spotted seal (Phoca largha) pup resting on a the gravel beach of the Bering Sea. Chukotka, Russia. July.

Wim van den Heever / South African fur seal (Arctocephalus pusillus pusillus) with setting sun, Walvis Bay, Namibia.

Cyril Ruoso / South american sea lion (Otaria byronia) and American fur seal (Arctocephalus australis) hauled out on the shore of Punta Coles Reserve, Peru.

Franco Banfi / Walrus (Odobenus rosmarus) hauled out in shallow water, Spitsbergen, Svalbard Archipelago, Norway, Arctic Ocean. July.

Franco Banfi / Walrus (Odobenus rosmarus) male and female, hauled out in shallow water, Spitsbergen, Svalbard Archipelago, Norway, Arctic Ocean. July.

SCOTLAND: The Big Picture / Grey seals (Halochoerus grypus) hauled out along the banks of the Ythan Estuary, agiatated, Aberdeenshire, Scotland, UK, February.

Staffan Widstrand / Bearded seal (Erignathus barbatus) hauled out on ice, Spitsbergen, Svalbard, Norway, September.

Roland Seitre / Blackish cinclodes (Cinclode fuligineux) on beach with Southern Elephant-Seal (Mirounga leonina). This species feeds on dead skin of the seal. Falklands Islands.

Ole Jorgen Liodden / Bearded seal (Erignathus barbatus) hauled out on ice, Spitsbergen, Svalbard, Norway, July.

Ole Jorgen Liodden / Walruses (Odobenus rosmarus) adult and young hauled on ice. Hinlopen, Svalbard, Norway, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) group on beach, Galapagos

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) juvenile on beach, Galapagos

Olga Kamenskaya / Baikal seals (Pusa sibirica) hauled out on rock. Endemic to Lake Baikal. Russia, May.

Nick Upton / Grey seal (Halichoerus grypus) pup aged one month, rubbing its head with its flipper, yawning and settling down to rest on a sandy beach, Norfolk, England, UK, January.

Eric Baccega / Male Steller sea lion (Eumetopias jubatus) with a group of females hauled out at a rookery, Prince Rupert, British Columbia, Canada, June.

Benjamin Barthelemy / Common seal (Phoca vitulina) pup hauled out on a beach at sunrise, Donna Nook Lincolnshire Wildlife Trust Reserve, Lincolnshire, England, UK, January.

Benjamin Barthelemy,Benjamin Barthelemy / Grey seal (Halichoerus grypus) hauled out on a beach at sunrise, Donna Nook Lincolnshire Wildlife Trust Reserve, Lincolnshire, England, UK, January.

Staffan Widstrand / Ringed seal (Pusa hispida) hauled out on rock, Svalbard, Norway

David Tipling / 2020VISION / Grey Seal (Halichoerus grypus) hauled out on rocks, in mid-moult. Farne Islands, Northumberland, July.

Chris Gomersall / 2020VISION / Atlantic grey seal (Halichoerus grypus) hauled out on rocks at the Cairns of Coll, with flipper in the air, Inner Hebrides, Scotland, UK, July 2011.

Terry Whittaker / 2020VISION / Common seals (Phoca vitulina) hauled out on saltmarsh, Wallasea Wild Coast Project, RSPB Greater Thames Futurescapes Project, Wallasea Island, Essex, England, UK, October

Terry Whittaker / 2020VISION / Common / Harbour seals (Phoca vitulina) hauled out on mudflats at saltmarsh, Wallasea Island RSPB reserve, Essex, UK, March 2011

Brent Stephenson / Crabeater Seal (Lobodon carcinophaga) hauled out on ice. Pleneau Island, Antarctica, January.

Niall Benvie / Common seal hauled out {Phoca vitulina} Islay, Argyll, Scotland

Staffan Widstrand / Walrus hauled out {Odobenus rosmarus} Chukotka, Siberia, Russia

Sergey Gorshkov / Walrus (Odobenus rosmarus) group hauled out on ice floe, Franz Josef Land, Russia

Oscar Dewhurst / Grey seal (Halichoerus grypus) hauled out on rock. Farne Islands, Northumberland, UK. July

Oscar Dewhurst / Grey seal (Halichoerus grypus) hauled out on a rock. Farne Islands, Northumberland, UK. July

Doug Perrine / Flipper tracks lead from the ocean up to a pair of Green sea turtles (Chelonia mydas) basking on sand beach, Kahana, West Maui, Hawaii.

Doug Perrine / Hawaiian green sea turtles (Chelonia mydas), resting in sea cave, Hawaii.

Doug Perrine / Hawaiian green sea turtles (Chelonia mydas), resting in sea cave, Hawaii.

Doug Perrine / Green sea turtles (+Chelonia mydas+) sleeping at night illuminated by moonlight, on sand beach next to condominium complex, Kahana, West Maui, Hawaii.

Doug Perrine / Green sea turtles (Chelonia mydas), basking at night on sand beach, Kahana, West Maui, Hawaii. Lights of Ka'anapali resort district in background

Doug Perrine / Green sea turtles (Chelonia mydas), basking at night on sand beach, Kahana, West Maui, Hawaii. With lights of Ka'anapali resort district in background

Fred Olivier / Walrus (Odobenus rosemarus) hauled out resting on sea ice, looks towards camera, Crocker Bay, Devon Island, Canada, September.

Fred Olivier / Two Walruses (Odobenus rosemarus) one in the water and one hauled out resting on sea ice, Crocker Bay, Devon Island, Canada, September.

Fred Olivier / Walrus (Odobenus rosemarus) hauled out resting on sea ice, another appears next to it in the water then swims away, Crocker Bay, Devon Island, Canada, September.