Adult Weddell seal (Leptonychotes weddellii), swimming in Girard Bay, Antarctica, Polar Regions

Ringed seal (Pusa hispida) lying on an ice floe, Arctic shelf, Svalbard, Arctic

Curious Antarctica fur seal pups (Arctocephalus gazella), underwater in Husvik Bay, South Georgia, UK Overseas Protectorate, Polar Regions

Antarctic fur seal (Arctocephalus gazella), Salisbury plain, South Georgia, Antarctica, Polar Regions

Adult Galapagos fur seal (Arctocephalus galapagoensis), hauled out on Santiago Island, Galapagos, Ecuador, South America

Sleeping Weddell seals (Leptonychotes weddellii), Half Moon Island, Livingston Island view, South Shetland Islands, Antarctica, Polar Regions

Southern elephant seal bull (Mirounga leoninar), throwing sand at breeding beach in St. Andrews Bay, South Georgia, Polar Regions

An adult crabeater seal (Lobodon carcinophaga), hauled out on the ice in Paradise Bay, Antarctica, Polar Regions

A bull Antarctic fur seal (Arctocephalus gazella), on the rocks at Coronation Island, South Orkneys, Antarctica, Polar Regions

Adult crabeater seals (Lobodon carcinophaga), on ice in the Bellingshausen Sea, Antarctica, Polar Regions

Young Southern elephant seal (Mirounga leonina), bulls mock fighting at Gold Harbour, South Georgia, South Atlantic, Polar Regions

Southern elephant seal bull (Mirounga leonina) molting in Gold Harbor, South Georgia, UK Overseas Protectorate, Polar Regions

Female southern elephant seal (Mirounga leonina), in Gold Harbor, South Georgia, UK Overseas Protectorate, Polar Regions

New Zealand fur seal (Arctocephalus forsteri) hauled out near Dunedin, South Island, New Zealand, Pacific

Guadalupe fur seals (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America

Guadalupe fur seals (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America

Southern Elephant seal (Mirounga leonina), King Penguins (Aptenodytes patagonicus) on snow, Salisbury Plain, South Georgia Island, Antarctic, Polar Regions

A Weddell seal (Leptonychotes weddellii), resting on snow in the Antarctic peninsula, Antarctica, Polar Regions

Portrait of an Antarctic fur seal (Arctocephalus gazella), Deception Island, Antarctica, Polar Regions

Southern elephant seal bull (Mirounga leoninar), at breeding beach in King Haakon Bay, South Georgia, Polar Regions

An adult crabeater seal (Lobodon carcinophaga), hauled out on sea ice in the Useful Islands, Gerlache Strait, Antarctica, Polar Regions

Adult harbor seal (Phoca vitulina), hauled out on ice in Glacier Bay National Park, Alaska, United States of America, North America

Adult crabeater seals (Lobodon carcinophaga), on ice near Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Adult leopard seal (Hydrurga leptonyx) inspecting the camera above and below water at Damoy Point, Antarctica, Polar Regions

Antarctic fur seal (Arctocephalus gazella) female ready to give birth, Stromness Harbor, South Georgia, UK Overseas Protectorate, Polar Regions

An adult male leopard seal (Hydrurga leptonyx), hauled out on ice in Girard Bay, Antarctica, Polar Regions

Adult crabeater seal (Lobodon carcinophaga), from the National Geographic Explorer in Girard Bay, Antarctica, Polar Regions

Cape fur seal (South African fur seal) (Arctocephalus pusillus), Elands Bay, Western Cape Province, South Africa, Africa

Elephant seal on Punta Ninfas, Chubut, Argentina, South America

Australian Fur Seal (Arctocephalus forsteri), near Kaikoura, Canterbury, South Island, New Zealand, Pacific

Crabeater seal on ice floe, Antarctica, Polar Regions

California sea lions (Zalophus californianus), stampeding on the beach in Puerto Refugio, Baja California, Sea of Cortez, Mexico, North America

Adult Weddell seal (Leptonychotes weddellii), resting on ice on Paulet Island, Weddell Sea, Antarctica, Polar Regions

Gray seals (grey seals) (Halichoerus grypus) hauled out on the shoreline on Mainland Island, Shetland Isles, Scotland, United Kingdom, Europe

Antarctica fur seal pup (Arctocephalus gazella), above and below underwater in Husvik Bay, South Georgia, Polar Regions

Seals slumber at one of world's largest colonies of Cape Fur Seals (Arctocephalus pusillus), Atlantic Coast, Cape Cross, Namibia, Africa

Seal on Rathlin Island, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe

Curious juvenile Antarctic fur seal (Arctocephalus gazella) in the water at Stromness Harbor, South Georgia, Polar Regions

Southern elephant seal (Mirounga leoninar), molting on the beach in Stromness Harbor, South Georgia, Polar Regions

Curious adult bearded seal (Erignathus barbatus), swimming in Makinson Inlet, Ellesmere Island, Nunavut, Canada, North America

Basking Grey Seals (Halichoerus grypus), on Longstone Island, Farne Islands, Northumberland, northeast England, United Kingdom, Europe

Basking Grey Seals (Halichoerus grypus), on Longstone Island, Farne Islands, Northumberland, England, United Kingdom, Europe

An adult leopard seal (Hydrurga leptonyx), hauled out on an ice floe in Paradise Bay, Antarctica, Polar Regions

An adult Weddell seal (Leptonychotes weddellii), hauled out on Paulet Island in the Weddell Sea, Antarctica, Polar Regions

Adult harbor seal, Phoca vitulina, hauled out on ice at South Sawyer Glacier in Tracy Arm, Southeast Alaska, USA.

Gray seal (grey seal), Halichoerus grypus, Heligoland, Germany, Europe

Southern elephant seal bulls (Mirounga leonina) mock-fighting in Gold Harbor, South Georgia, UK Overseas Protectorate, Polar Regions

Adult leopard seal (Hydrurga leptonyx) inspecting the camera above and below water at Damoy Point, Antarctica, Polar Regions

Antarctic fur seal (Arctocephalus gazella) charging through king penguins at Salisbury Plain, South Georgia, UK Overseas Protectorate, Polar Regions

King penguins and fur seal, Moltke Harbour, Royal Bay, South Georgia, South Atlantic

Three Cape fur seal (South African fur seal) (Arctocephalus pusillus) pups, Elands Bay, South Africa, Africa

Elephant seals on Punta Ninfas, Chubut, Argentina, South America

Growling male Southern Elephant seal (Mirounga leonina), Salisbury Plains, South Georgia Island, Antarctic, Polar Regions

Juvenile Antarctic fur seals (Arctocephalus gazella) in the surf at Prion Island, South Georgia, Polar Regions

Juvenile Antarctic fur seals (Arctocephalus gazella) in the surf at Gold Harbor, South Georgia, Polar Regions

Adult endemic South Georgia pipit (Anthus antarcticus), near elephant seal bull in Gold Harbor, South Georgia, Polar Regions

Curious adult bearded seal (Erignathus barbatus), swimming in Makinson Inlet, Ellesmere Island, Nunavut, Canada, North America

Southern elephant seals (Mirounga leonina), hauled out on the beach, Barrientos Island, Antarctica, Polar Regions

Cape Fur seals (Arctocephalus pusillus), Cape Cross, Skeleton Coast, Kaokoland, Kunene Region, Namibia, Africa

Adult crabeater seal (Lobodon carcinophaga), on ice in the Bellingshausen Sea, Antarctica, Polar Regions

Young northern elephant seal (Mirounga angustirostris), head detail, Benito del Oeste Island, Baja California, Mexico, North America

South African fur seals, Arcotocephalus pusillus, Cape Cross, Namibia, Africa

Antarctic fur seal (Arctocephalus gazella) on tussac grass in Gold Harbor, South Georgia, UK Overseas Protectorate, Polar Regions

Adult Antarctic fur seal (Arctocephalus gazella), Danco Island, Antarctica, Southern Ocean, Polar Regions

Southern elephant seal (Mirounga leonina) pup hiding in the sand, Sea Lion Island, Falkland Islands, South America

Fur seals, Moltke Harbour, Royal Bay, South Georgia, South Atlantic

Adult bearded seal (Erignathus barbatus) on ice floe in Hinlopen Strait, Spitsbergen, Svalbard, Norway, Scandinavia, Europe

Adult king penguins (Aptenodytes patagonicus) at breeding colony at Salisbury Plain, South Georgia Island, Polar Regions

Guadalupe fur seal (Arctocephalus townsendi), hauled out on Isla Rasita, Baja California, Mexico, North America

Porpoising northern fur seal (Callorhinus ursinus), Sakhalin Island, Russia, Eurasia

Adult male Guadalupe fur seal (Arctocephalus townsendi) amongst California sea lions, Isla San Pedro Martir, Baja California, Mexico, North America

A curious young Antarctic fur seal (Arctocephalus gazella), Gold Harbour, South Georgia, Polar Regions

Curious Antarctica fur seal pups (Arctocephalus gazella), underwater in Husvik Bay, South Georgia, UK Overseas Protectorate, Polar Regions

A young leucistic Antarctic fur seal (Arctocephalus gazella), blond due to lack of melanin, Cooper Bay, South Georgia, Polar Regions

Antarctic fur seal chillin' on the ice in Antarctica, Polar Regions

Sunrise on king penguin (Aptenodytes patagonicus) breeding colony at Gold Harbor, South Georgia, Polar Regions

An adult Galapagos fur seal (Arctocephalus galapagoensis), Santiago Island, Galapagos, Ecuador, South America

Adult crabeater seals (Lobodon carcinophaga), on ice in the Bellingshausen Sea, Antarctica, Polar Regions

An adult Weddell seal (Leptonychotes weddellii), hauled out at Tay Head, Joinville Island, Antarctica, Polar Regions

An adult female Antarctic fur seal (Arctocephalus gazella), in Moltke Harbor, South Georgia, South Atlantic, Polar Regions

Young Southern elephant seal (Mirounga leonina), bulls lying near each other at Gold Harbour, South Georgia, South Atlantic, Polar Regions

Adult Weddell seal (Leptonychotes weddellii) resting on ice in Paradise Bay, Antarctica, Polar Regions

Southern elephant seal (Mirounga leonina), weaner pups at sunrise, Gold Harbour, South Georgia, UK Overseas Protectorate, Polar Regions

Adult crabeater seal (Lobodon carcinophaga), from the National Geographic Explorer in Girard Bay, Antarctica, Polar Regions

Southern elephant seals (Mirounga leonina) on sandy beach, Sea Lion Island, Falkland Islands, South America

Young elephant seals and king penguins, St. Andrews Bay, South Georgia, South Atlantic

Elephant seals on Punta Ninfas, Chubut, Argentina, South America

Adult bull Antarctic fur seal (Arctocephalus gazella), hauled out on first year sea ice in the Weddell Sea, Antarctica, Polar Regions

King penguins and elephant seals cover the beach in Gold Harbor, South Georgia, UK Overseas Protectorate, Polar Regions

A curious young Antarctic fur seal (Arctocephalus gazella), Gold Harbour, South Georgia, Polar Regions

Antarctic fur seal (Arctocephalus gazella), Gourdin Island, Antarctica, Polar Regions

Bearded Seal (Erignathus barbatus) laying on pack ice, Spitsbergen Island, Svalbard Archipelago, Arctic, Norway, Scandinavia, Europe

Southern Elephant Seal (Mirounga leonina), two females, Punta Ninfas, Atlantic Coast, Chubut Province, Patagonia, Argentina, South America

Adult bull northern fur seal (Callorhinus ursinus) on St. Paul Island, Pribilof Islands, Alaska, United States of America, North America

Antarctic fur seal (Arctocephalus gazella) mother nursing her pup, Cooper Bay, South Georgia, Polar Regions

Juvenile Antarctic fur seal (Arctocephalus gazella) in the surf at Gold Harbor, South Georgia, Polar Regions

Adult male southern elephant seals (Mirounga leonina), hauled out on the beach at Robert Island, Antarctica, Polar Regions

An adult Weddell seal (Leptonychotes weddellii), hauled out on Half Moon Island, South Shetlands, Antarctica, Polar Regions

Adult northern elephant seals (Mirounga angustirostris), Benito del Oeste Island, Baja California, Mexico, North America

Southern elephant seal bull (Mirounga leonina), in Stromness Harbor, South Georgia, UK Overseas Protectorate, Polar Regions