A common mushroom coral (Fungia fungites), at night in the rubble on Kawe Island, Raja Ampat, Indonesia, Southeast Asia, Asia

Giant Tridacna clams, genus Tridacna, in the shallow reefs off Sauwaderek Village Reef, Raja Ampat, Indonesia, Southeast Asia, Asia

A mother sea otter (Enhydra lutris) eating a Dungeness crab with her pup in the Inian Islands, Southeast Alaska, United States of America, North America

Gentoo penguins (Pygoscelis papua), Port Lockroy British Antarctic Base, Wiencke Island, Antarctica, Polar Regions

Gentoo penguins (Pygoscelis papua) at nesting site on Bull Point, East Island, Falkland Islands, South America

Mother walrus (Odobenus rosmarus) with calf hauled out on an ice floe near Storoya, Svalbard, Norway, Europe

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

Cove and beach of Brisana, Peninsula of Karaburun, within the Karaburun-Sazan Marine Parc, Vlore Bay, Albania, Europe

Double-crested cormorant (Phalacrocorax auritus), Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America

Imperial shag (Leucocarbo atriceps) carrying nesting material, Sea Lion Island, Falkland Islands, South America

Steamer duck (Tachyeres brachypterus), Sea Lion Island, Falkland Islands, South America

Loggerhead turtle (Caretta caretta), laying eggs at night, Banga Nek, Kwazulu Natal, South Africa, Africa

Li Cossi wild beach in Costa Paradiso, Sardinia, Italy, Mediterranean, Europe

Gentoo penguins (Pygoscelis papua) returning to sea from breeding colony at Port Lockroy, Antarctica, Polar Regions

Adelie penguin (Pygoscelis adeliae), breeding colony on Paulet Island, Weddell Sea, Antarctica, Polar Regions

A curious adult cape petrel (Daption capense), Lindblad Cove, Trinity Peninsula, Antarctica, Polar Regions

Clymene dolphin mother and calf (Stenella clymene) leaping and showing distinctive tripartite colour pattern, Sao Tome and Principe, Africa

Adult spinner dolphins (Stenella longirostris), leaping near tourist boat in the waters off the Kalpitiya Peninsula, Sri Lanka, Asia

Gentoo penguin (Pygoscelis papua) breeding colony at Dorian Bay, Antarctica, Polar Regions

Humpback whale (Megaptera novaeangliae) surface display, tail throw, Useful Island, Antarctica, Polar Regions

Adult polar bear (Ursus maritimus) on first year sea ice in Olga Strait, near Edgeoya, Svalbard, Arctic, Norway, Scandinavia, Europe

An adult cigar wrasse (Cheilio inermis), off Bangka Island, near Manado, Sulawesi, Indonesia, Southeast Asia, Asia

Abundant marine life in the clear waters off Bangka Island, near Manado, Sulawesi, Indonesia, Southeast Asia, Asia

Galapagos sea lions (Zalophus californianus wollebaeki), resting on a sandy beach, Espanola Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Great Flamingos at the water's edge with the cranes of the port in the background, the Wetlands, Walvis Bay, Namibia, Africa

Sally Lightfoot crab (Grapsus grapsus), Sullivan Bay, Santiago (James) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Marine iguana (Amblyrhynchus cristatus), Punta Suarez, Espanola (Hood) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Transient killer whale (Orcinus orca) breaching in the Monterey Bay National Marine Sanctuary, California, United States of America, North America

Adult light-mantled albatross pair (Phoebetria palpebrata) in courtship flight over Prion Island, South Georgia, Polar Regions

Brown pelicans (Pelecanus occidentalis), at a sardine processing plant, Puerto San Carlos, Baja California Sur, Mexico, North America

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

An adult snow petrel (Pagodroma nivea), in flight in Duse Bay, Weddell Sea, Antarctica, Polar Regions

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

Steller sea lion (Eumetopias jubatus), haul out site, South Marble Islands, Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Flamingo in the water, Walvis Bay, Namibia, Africa

Adult gentoo penguins (Pygoscelis papua), porpoising in the sea to feed, Paradise Bay, Antarctica, Polar Regions

Adult gentoo penguins (Pygoscelis papua), walking on the beach in Neko Harbor, Antarctica, Polar Regions

A pair of juvenile Galapagos hawks (Buteo galapagoensis), Rabida Island, Galapagos, Ecuador, South America

Adult male Galapagos marine iguana (Amblyrhynchus cristatus), underwater, Fernandina Island, Galapagos, Ecuador, South America

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

Penguins hauled out on an iceberg near Brown Bluff, Weddell Sea, Antarctica, Polar Regions

Adult southern fulmar (Fulmarus glacialoides), on ice at Peter I Island in the Bellingshausen Sea, Antarctica, Polar Regions

Humpback whale (Megaptera novaeangliae), adult underwater on Ningaloo Reef, Western Australia, Australia, Pacific

An adult blue whale (Balaenoptera musculus) flukes-up dive in Monterey Bay National Marine Sanctuary, California, United States of America, North America

Muriwai Gannet Colony, Auckland, North Island, New Zealand, Pacific

Commercial whale watching boat Goddess Fantasy operating in Monterey Bay Marine Sanctuary, California, United States of America, North America

Adult black-footed albatross (Phoebastria nigripes), in flight in Monterey Bay Marine Sanctuary, Monterey, California, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), with killer whale rake marks, Los Islotes, Baja California Sur, Mexico, North America

Fluke of adult male humpback whale (Megaptera novaeangliae), competition pod, San Jose del Cabo, Baja California Sur, Mexico, North America

Stellers Sea Eagle (Haliaeetus pelagious), Rausu, Hokkaido, Japan, Asia

The wild and rugged granite cliffs of Cornwall's Atlantic coast in summer, near Pendeen, in the far west of Cornwall, England, United Kingdom, Europe

An adult Bleekers parrotfish (Chlorurus bleekeri), off the reef on Kawe Island, Raja Ampat, Indonesia, Southeast Asia

An adult bluefin trevally (Caranx melampygus), on the reef at Batu Hatrim, Raja Ampat, Indonesia, Southeast Asia

A juvenile blue demoiselle (Chrysiptera cyanea), on the reef off Kawe Island, Raja Ampat, Indonesia, Southeast Asia

An adult lemon damsel (Pomacentrus moluccensis), on the reef off Kawe Island, Raja Ampat, Indonesia, Southeast Asia

An adult crocodile flathead (Cymbacephalus beauforti) camouflaged in the coral, Waigeo Island, Raja Ampat, Indonesia, Southeast Asia

An adult scrawled filefish (Aluterus scriptus), on the reef off Kri Island, Raja Ampat, Indonesia, Southeast Asia, Asia

Galapagos sea lion (Zalophus wollebaeki), with snorkelers underwater on Santiago Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult pair of courting flightless cormorants (Nannopterum harris), Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult whitetip reef shark (Triaenodon obesus) under a ledge in Puerto Egas, Santiago Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Massive numbers of Cormorants on the sand dunes along the Atlantic coast, Namibe (Namib) desert, Iona National Park, Namibe, Angola, Africa

Aerial of massive numbers of Cormorants on the sand dunes along the Atlantic coast, Namibe (Namib) desert, Iona National Park, Namibe, Angola, Africa

View of African penguins on Boulders Beach, Seaforth, Table Mountain National Park, Cape Town, Western Cape, South Africa, Africa

An adult necklace starfish (Fromia monilis), in the shallow reefs off Bangka Island, Indonesia, Southeast Asia, Asia

An adult Crown-of-Thorns starfish (Acanthaster planci), in the shallow reefs off Bangka Island, Indonesia, Southeast Asia, Asia

Common tube-nosed fruit bats (Nyctimene albiventer), in the air over Pulau Panaki, Raja Ampat, Indonesia, Southeast Asia, Asia

Bennett's feather star (Oxycomanthus bennetti), in the shallow reefs off Bangka Island, Indonesia, Southeast Asia, Asia

Giant Tridacna clams, genus Tridacna, in the shallow reefs off Port Airboret, Raja Ampat, Indonesia, Southeast Asia, Asia

Christmas tree worms (Spirobranchus giganteus), in the shallow reefs off Bangka Island, Indonesia, Southeast Asia, Asia

Corals in the crystal clear water in the shallow reefs off Bangka Island, off the northeastern tip of Sulawesi, Indonesia, Southeast Asia, Asia

Corals in the crystal clear water in the shallow reefs off Bangka Island, off the northeastern tip of Sulawesi, Indonesia, Southeast Asia, Asia

Adult humpback whales (Megaptera novaeangliae), bubble-net feeding in Sitka Sound, Southeast Alaska, United States of America, North America

Adult humpback whales (Megaptera novaeangliae), bubble-net feeding near Morris Reef, Southeast Alaska, United States of America, North America

Steller sea lions (Eumetopias jubatus), hauled out at a rookery in the Inian Islands, Southeast Alaska, United States of America, North America

An adult pearly monocle bream (Scolopsis margaritifera), off Wohof Island at night, Raja Ampat, Indonesia, Southeast Asia, Asia

An adult Vanikoro sweeper (Pempheris vanicolensis), on the reef off Bangka Island, Indonesia, Southeast Asia, Asia

Mother walrus (Odobenus rosmarus) with calf hauled out on an ice floe near Storoya, Svalbard, Norway, Europe

Gentoo penguins (Pygoscelis papua), Port Lockroy British Antarctic Base, Wiencke Island, Antarctica, Polar Regions

Adult fin whale (Balaenoptera physalus) surfacing near Hornsund, Spitsbergen, Svalbard, Arctic, Norway, Scandinavia, Europe

Adult polar bear (Ursus maritimus) on first year sea ice in Olga Strait, near Edgeoya, Svalbard, Arctic, Norway, Scandinavia, Europe

Ostrich in the Cape of Good Hope Nature Reserve, Cape Town, Cape Peninsula, South Africa, Africa

Brown pelican (Pelecanus occidentalis) in flight in partial breeding plumage, Salton Sea, California, United States of America, North America

Crabeater seal on ice floe, Antarctica, Polar Regions

Snowy egret (Egretta thula), Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America

Great blue heron (Ardea herodias) in flight, Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America

Adult gray whales (Eschrichtius robustus), courtship display in Magdalena Bay on the Baja Peninsula, Baja California Sur, Mexico, North America

Mating Antarctic fur seals (Arctocephalus gazella), in the water at Hercules Bay, South Georgia Island, Polar Regions

An adult female Falkland steamer duck (Tachyeres brachypterus), on Carcass Island, Falkland Islands, South America

Polar bear with bloodied face on sea ice, Nunavut and Northwest Territories, Canada, North America

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

Adelie penguin (Pygoscelis adeliae), breeding colony on Paulet Island, Weddell Sea, Antarctica, Polar Regions

Clymene dolphins (Stenella clymene) porpoising and showing distinctive tripartite colour pattern, Sao Tome and Principe, Africa

Gannets (Morus bassanus) carrying seaweed for nesting material. Bass Rock, Scotland

Adult polar bear (Ursus maritimus) on first year sea ice in Olga Strait, near Edgeoya, Svalbard, Arctic, Norway, Scandinavia, Europe

Tourists watching a colony of black-browed albatross (Thalassarche melanophris), Saunders Island, Falklands, South America

Wild flowers, Fetovaia Beach, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy, Europe

Portrait of a Galapagos sea lion (Zalophus californianus wollebaeki), South Plaza Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Northern Gannet (Morus bassanus) in flight, Stac Lee, island Marilyn, St. Kilda Archipelago, UNESCO World Heritage Site, Outer Hebrides, Scotland, United Kingdom, Europe

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

Adult blue whale (Balaenoptera musculus) feeding in Right Whale Bay, South Georgia, Polar Regions