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Adult Peale's Dolphin (Lagenorhynchus australis) bow-riding Zodiacs on New Island in the Falkland Islands

Adult Peale's Dolphin (Lagenorhynchus australis) bow-riding Zodiacs on New Island in the Falkland Islands

A pod of Pacific white-sided dolphins (Lagenorhynchus obliquidens) leaping and surfacing in Johnstone Strait, British Columbia, Canada, North America

Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America

Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America

Northern (Steller) sea lions (Eumetopias jubatus) hauled out on South Marble Island in Glacier Bay National Park, Alaska, United States of America

Adult humpback whale (Megaptera novaeangliae) breaching along the west side of Chatham Strait in Alaska, United States of America

Adult humpback whale (Megaptera novaeangliae) breaching along the west side of Chatham Strait in Alaska, United States of America

Adult brown bear (Ursus arctos) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America

Adult killer whale (Orcinus orca) surfacing with kelp on its flukes in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

Pack Ice Type B killer whales (Orcinus orca), finding a leopard seal (Hydrurga leptonyx), on an ice floe in Antarctica, Polar Regions

Adult Commerson's dolphin (Cephalorhynchus commersonii), surfacing in Stanley Harbor in the Falkland Islands, South America

Adult Peale's Dolphin (Lagenorhynchus australis), bow-riding near New Island in the Falkland Islands, South America

Adult Peale's Dolphin (Lagenorhynchus australis), bow-riding near New Island in the Falkland Islands, South America

Adult bull southern elephant seal (Mirounga leonina) issuing a bellowing challenge at Gold Harbour on South Georgia, Polar Regions

Adult bull southern elephant seal (Mirounga leonina) trying to cool off by flinging sand on his back at Gold Harbour, South Georgia, Polar Regions

Adult bull southern elephant seal (Mirounga leonina) with females and pups at Gold Harbour on South Georgia Island, Polar Regions

Southern elephant seal (Mirounga leonina) challenger bull in the surf at Gold Harbour on South Georgia Island, Polar Regions

Southern elephant seal (Mirounga leonina) pup interacting with curious king penguin at Gold Harbour on South Georgia, Polar Regions

Southern elephant seal (Mirounga leonina) bull holding adult female in the surf to mate with her, South Georgia, Polar Regions

Adult male polar bear (Ursus maritimus) on multi-year ice floes in Franz Josef Land, Russia, Arctic Ocean, Eurasia

Southern elephant seals (Mirounga leonina), hauled out for their annual catastrophic molt (moult) on the beach at Snow Island, Antarctica, Polar Regions

California sea lions (Zalophus californianus), grouped together on a channel marker off Newport Beach, California, United States of America, North America

A very rare sighting of an adult Blue Whale (Balaenoptera musculus) surfacing in the Svalbard Archipelago, Norway, Arctic, Europe

Galapagos sea lion mother nursing pup (Zalophus wollebaeki) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos sea lion pup (Zalophus wollebaeki) on Gardner Beach, Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Young Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos sea lion mother nursing pup (Zalophus wollebaeki) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Young Galapagos sea lion (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos sea lion (Zalophus wollebaeki) pup inspects a fishing boat on the beach on San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Leucistic caused by lack of melanin, or blond Antarctic fur seal pup (Arctocephalus gazella) on South Georgia, Polar Regions

Killer whale female calf (Orcinus orca), breaching at sunset off Isla San Jose, Baja California Sur, Sea of Cortez, Mexico, North America

Crabeater seals (Lobodon carcinophaga) hauled out on ice floe near Cuverville Island in the Antarctic Peninsula, Antarctica, Polar Regions

Adult fin whale (Balaenoptera physalus), dorsal fin detail surfacing off Newport Beach, California, United States of America, North America

Adult California gray whale (Eschrictius robustus), spy-hopping in San Ignacio Lagoon, Baja California, Mexico, North America

Adult California gray whale (Eschrictius robustus), near boat in San Ignacio Lagoon, Baja California, Mexico, North America

Adult female leopard seal (Hydrurga leptonyx) hauled out on an ice floe in Kayak Cove on Brabant Island, Antarctica, Polar Regions

Crabeater seals (Lobodon carcinophaga) hauled out on ice floe near the Antarctic Peninsula, Antarctica, Polar Regions

Adult bull southern elephant seal (Mirounga leonina) flipping sand onto its back to cool off on South Georgia Island, Southern Ocean

Male southern elephant seal (Mirounga leonina) pups mock fighting on South Georgia Island, Southern Ocean

Southern elephant seal (Mirounga leonina) pup, called weaners once their mothers stop nursing, South Georgia Island, Southern Ocean

Male southern elephant seal (Mirounga leonina) pups mock fighting on South Georgia Island, Southern Ocean

Adult bull southern elephant seals (Mirounga leonina) fighting for breeding grounds on South Georgia Island, Southern Ocean

Killer whale pod (Orcinus orca), ad tourist off Punta Colorada, Isla San Jose, Baja California Sur, Mexico, North America

Humpback whale (Megaptera novaeangliae), surfacing off San Jose del Cabo, Baja California Sur, Mexico, North America

A long-beaked common dolphin (Delphinus capensis), surfacing off Gorda Banks, Baja California Sur, Mexico, North America

Southern Right Whale (Eubalaena australis) adult surfacing near Puerto Pyramides, Peninsula Valdez, Argentina

Bull southern elephant seal (Mirounga leonina) issuing a bellowing challenge at Gold Harbour on South Georgia Island, Polar Regions

Adult bull southern elephant seal (Mirounga leonina) fleeing from another male challenger at Gold Harbour, South Georgia, Polar Regions

Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Snow Pass, Alaska, United States of America, North America

Northern (Steller) sea lions (Eumetopias jubatus) hauled out at South Marble Island in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

A large pod of Gerlache Strait type B killer whales (Orcinus orca), traveling and socializing in Gerlache Strait, Antarctica, Polar Regions

An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America

Adult female polar bear (Ursus maritimus) walking on multi-year ice floes in Franz Josef Land, Russia, Arctic Ocean, Eurasia

A juvenile polar bear (Ursus maritimus) skull, possibly predated by adult polar bear, in the Svalbard Archipelago, Norway, Arctic, Europe

An adult polar bear (Ursus maritimus) swimming and hauling itself onto ice floe in the Svalbard Archipelago, Norway, Arctic, Europe

Adult bull walrus (Odobenus rosmarus rosmarus) hauled out on the beach in the Svalbard Archipelago, Norway, Arctic, Europe

Galapagos sea lions (Zalophus wollebaeki) hauled out on Gardner Beach, Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult Commerson's dolphin (Cephalorhynchus commersonii), surfacing in Stanley Harbor in the Falkland Islands, South America

Crabeater seal (Lobodon carcinophaga) hauled out on ice floe near Adelie penguin in the Gullet near the Antarctic Peninsula, Antarctica, Polar Regions

Crabeater seals (Lobodon carcinophaga) hauled out on ice floe in Neko Harbor near the Antarctic Peninsula, Antarctica, Polar Regions

Crabeater seals (Lobodon carcinophaga) hauled out on ice floe in Neko Harbor near the Antarctic Peninsula, Antarctica, Polar Regions

Crabeater seal (Lobodon carcinophaga) swimming near iceberg at Booth Island near the Antarctic Peninsula, Antarctica, Polar Regions

California sea lions (Zalophus californianus), grouped together on a channel marker off Newport Beach, California, United States of America, North America

Galapagos sea lion (Zalophus wollebaeki) pup in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos sea lion (Zalophus wollebaeki) pup and curious bird, Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Antarctic fur seal pups (Arctocephalus gazella) mock-fighting on South Georgia, Southern Ocean, Polar Regions

Humpback whale (Megaptera novaeangliae), surfacing off San Jose del Cabo, Baja California Sur, Mexico, North America

A long-beaked common dolphin pod (Delphinus capensis), traveling off Gorda Banks, Baja California Sur, Mexico, North America

Galapagos sea lion (Zalophus californianus wollebaeki) and marine iguana (Amblyrhynchus cristatu), Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Mother southern elephant seal (Mirounga leonina) nursing young pup at breeding site at Peggotty Bluff, South Georgia Island, Polar Regions

Northern (Steller) sea lions (Eumetopias jubatus) hauled out at South Marble Island in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

An adult ivory gull (Pagophila eburnea) on ringed seal kill on Spitsbergen in the Svalbard Archipelago, Norway, Arctic, Europe

Adult bull walrus (Odobenus rosmarus rosmarus) hauled out on the beach in the Svalbard Archipelago, Norway, Arctic, Europe

Snorkeler with Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos sea lion pup (Zalophus wollebaeki) underwater with Galapagos penguin in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

A small pod of killer whales (Orcinus orca) off Ascension Island in the Tropical Atlantic Ocean, South Atlantic Ocean

Antarctic fur seal pups (Arctocephalus gazella) playing in Fortuna Bay on South Georgia, Southern Ocean, Polar Regions

Adult Commerson's dolphin (Cephalorhynchus commersonii), surfacing in Stanley Harbor in the Falkland Islands, South America

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

Adult Commerson's dolphin (Cephalorhynchus commersonii) surfacing, Carcass Island in the Falkland Islands, South America

Adult male Antarctic fur seal (Arctocephalus gazella) harassing a skua at Torgersen Island, Antarctica, Polar Regions

Adult female leopard seal (Hydrurga leptonyx) stalking juvenile Adelie penguins at Brown Bluff near the Antarctic Peninsula, Antarctica, Polar Regions

Adult bull southern elephant seals (Mirounga leonina) fighting for breeding grounds on South Georgia Island, Southern Ocean

Long-beaked common dolphin (Delphinus capensis), leaping with remora in Cabo Pulmo National Marine Park, Baja California Sur, Mexico, North America

Adult California gray whale (Eschrictius robustus), spy-hopping in San Ignacio Lagoon, Baja California, Mexico, North America

Adult female killer whale (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

Adult Antarctic fur seal (Arctocephalus gazella), bulls fighting in Hercules Bay on South Georgia Island, Polar Regions

Harbor seals (Phoca vitulina) hauled out on a submerged log in Misty Fjord National Monument, Southeast Alaska, United States of America, North America

Adult female polar bear (Ursus maritimus) rolling in snow to clean its fur on multi-year ice floes in Franz Josef Land, Russia, Arctic Ocean, Eurasia

Young Galapagos sea lion bulls (Zalophus wollebaeki) mock-fighting in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America