Hooker's sea lions (Neophoca hooker), Cannibal Bay, Catlins Coast, Otago, South Island, New Zealand, Pacific

Southern elephant seal (Mirounga leonina) bull rules the harem during breeding season, Sea Lion Island, Falkland Islands, South America

Two southern elephant seal (Mirounga leonina) bulls rear up to establish dominance, Sea Lion Island, Falkland Islands, South America

Southern elephant seal (Mirounga leonina) bull uses vocalisation and produces steam, Sea Lion Island, Falkland Islands, South America

Female southern elephant seal, Mirounga leonina, at breeding colony at Gold Harbour, South Georgia Island, Atlantic Ocean

Female southern elephant seal (Mirounga leonina) showing slight aggression at Moltke Harbor on South Georgia Island, Polar Regions

South African (Cape) fur seal (Arctocephalus pusillus pusillus), Cape Cross breeding colony, Namibia, May 2013

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

Female southern elephant seals (Mirounga leonina) showing slight aggression at Moltke Harbor on South Georgia, Polar Regions

Southern elephant seal (Mirounga leonina) mating behavior on South Georgia Island, Southern Ocean

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

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

Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean

Southern elephant seal (Mirounga leonina) mating behavior on South Georgia Island, Southern Ocean

Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean

Southern elephant seal (Mirounga leonina) mating behavior on South Georgia Island, Southern Ocean

Southern elephant seal (Mirounga leonina) mating behavior on South Georgia Island, Southern Ocean

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

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

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

Male and female Antarctic fur seal (Arctocephalus gazella), showing extreme sexual dimorphism, King Edward Point, South Georgia, Polar Regions

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

Southern Elephant Seal bulls (Mirounga leonina) fighting, Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Southern Elephant Seal bulls (Mirounga leonina) fighting, Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Southern Elephant Seal bulls (Mirounga leonina) fighting, Hannah Point, South Shetland Islands, Antarctica, Polar Regions

Adult male leopard seal (Hydrurga leptonyx) with Lindblad Expeditions guest in Zodiac

Wild Adult Male and Female, Steller sea lions (Eumetopias jubatus), endangered, colony, rookery, haul out, raft, above water.Bering Islands (Bering Sea) Russia, Asia. MORE INFO: This sea lion in the largest member of the eared seals.

Wild Adult Male and Female, Steller sea lions (Eumetopias jubatus), endangered, colony, rookery, haul out, raft, above water.Bering Islands (Bering Sea) Russia, Asia. MORE INFO: This sea lion in the largest member of the eared seals.

Wild Adult Female, Steller sea lions (Eumetopias jubatus), new pup, fresh born, endangered, colony, rookery, haul out, raft, above water.Bering Islands (Bering Sea) Russia, Asia. MORE INFO: This sea lion in the largest member of the eared seals.

Adult male leopard seal (Hydrurga leptonyx) with Lindblad Expeditions guest in Zodiac

Wild Adult Male and Female, Steller sea lions (Eumetopias jubatus), and Northern Fur Seal, endangered, colony, rookery, haul out, raft, above water.Bering Islands (Bering Sea) Russia, Asia. MORE INFO: This sea lion in the largest member of the eared seals.

Antarctic Fur Seal (Arctocephalus gazella) pup on the island of South Georgia, southern Atlantic Ocean

Antarctic Fur Seal (Arctocephalus gazella) pup on the island of South Georgia, southern Atlantic Ocean

Southern Elephant Seal (Mirounga Leonina) With It's Mouth Open, Neko Harbour, Antarctic Peninsula, Antarctica

Northern Elephant Seal (Mirounga Angustirostris) On The Central California Coast, California, United States Of America

Sea lions on the shore looking as though they are talking to each other; Alaska, United States of America