Patterns in the kelp at low tide on South Georgia Island, Southern Ocean

Patterns in the kelp at low tide on South Georgia Island, Southern Ocean

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

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

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

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

Shag Rocks, Scotia Sea, South Atlantic Ocean

Geese, Inishbofin island, Connemara, County Galway, Connacht, Republic of Ireland

Cave of Papafragas, Milos, Cyclades, Greek Islands, Greece

An aerial view of the estuary of the Taw and Torridge Rivers, near Bideford and Barnstaple, Devon, England, United Kingdom, Europe

Dunnet Head Lighthouse at summer solstice sunrise, Caithness, Highlands, Scotland, United Kingdom, Europe

A tube anemone grows on a sandy seafloor in Komodo National Park, Indonesia. This tropical area in the western Pacific harbors an extraordinary array of marine organisms.

A broadclub cuttlefish (Sepia latimanus) uses camouflage to blend into a shallow coral reef in Raja Ampat, Indonesia. This remote region is known as the heart of the Coral Triangle due to its extraordinary marine biodiversity.

Adult king penguins (Aptenodytes patagonicus) returning to sea from the nesting colony at Salisbury Plain, South Georgia, Polar Regions

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) swimming in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

The white and black sand beach and estuary at Talisker with Preshal More beyond, both SSSI locations for the Tertiary basalt lava geology and biological habitats, Talisker Bay, Carbost, Skye, Inner Hebrides, Scotland, United Kingdom, Europe

Amy Cadge, staff member from the Lindblad Expedition ship National Geographic Explorer taking a photograph with a camera in the Svalbard Archipelago, Norway, Arctic, Europe

Aerial of a red sailing boat in the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Views of the abandoned whaling station in Prince Olav Harbor on South Georgia, Southern Ocean, Polar Regions

Sunrise in South Georgia, Southern Ocean, Polar Regions

Views of the old whaling station at Grytviken on South Georgia in the South Atlantic

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

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

Inishbofin island, Connemara, County Galway, Connacht, Republic of Ireland

A sailboat anchored in the thick foliage and undercut islets, Palau, Micronesia, Pacific

View of Corfu Town and Ionian Sea during golden hour, Corfu Town, Corfu, Ionian Sea, Greek Islands, Greece, Europe

Reflections in the calm waters of Jackson Pass Provincial Marine Park, British Columbia, Canada, North America

Vibrant soft coral colonies grow on a reef dropoff in Lembeh Strait, Indonesia. This area is known for its spectacular marine biodiversity.

Mandrakia village, Milos Island, Cyclades Islands, Greek Islands, Greece, Europe

Spring flowers and granite rocks beside the Strait of Bonifacio, Capo Testa, Santa Teresa di Gallura, Sassari, Sardinia, Italy, Mediterranean, Europe

Flatanger, Norway, Scandinavia, Europe

Floating iceberg near the Eqi glacier, Ilulissat, Western Greenland, Denmark, Polar Regions

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

Blue-footed boobies (Sula nebouxii), in flight near Isla Salsipuedes, Baja California, Sea of Cortez, Mexico, North America

Dunnet Head, near Thurso, Caithness, Scotland, United Kingdom, Europe

View of coastline near Church of the Holy Apostles in Thassos Town, Thassos, Aegean Sea, Greek Islands, Greece, Europe

Beach in south west Cyprus, Greek Cyprus, Cyprus, Mediterranean, Europe

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

By-the-wind sailors (Velella velella), floating by the hundreds on the surface of the sea outside Newport Beach, California, United States of America, North America

A venomous scorpionfish is found on a healthy coral reef in Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.

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

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

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

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

California sea lion bulls (Zalophus californianus), hauled out on a small islet off San Marcos Island, Sea of Cortez, Mexico, North America

View of beach and sea in Thassos Town, Thassos, Aegean Sea, Greek Islands, Greece, Europe

View of boat on pebble beach near Skala Kallirachis at sunset, Skala Kallirachis, Thassos, Aegean Sea, Greek Islands, Greece, Europe

Black pearl, Praslin Island, Republic of Seychelles, Indian Ocean, Africa

View of Ionian Sea and and coastline near Kassiopi, Kassiopi, Corfu, Ionian Sea, Greek Islands, Greece, Europe

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

Adult brown pelicans (Pelecanus occidentalis), on a small islet near Isla Salsipuedes, Baja California, Mexico, North America

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

View of Ionian Sea and Ipsos Beach in Ipsos at dusk, Ipsos, Corfu, Ionian Sea, Greek Islands, Greece, Europe

Opuntia (Prickly Pear) cacti on South Plaza island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Bottlenose dolphin (Tursiops truncatus), surfacing in Cabo Pulmo National Marine Park, Baja California Sur, Mexico,, North America

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

Killer whale pod (Orcinus orca), beside tourists in inflatables off Punta Colorada, Isla San Jose, Baja California Sur, Mexico, North America

California sea lion bulls (Zalophus californianus), hauled out on a small islet off San Marcos Island, Sea of Cortez, Mexico, North America

View of coastline from Tomateli, Corfu, Ionian Sea, Greece, Europe, Corfu, Ionian Sea, Greek Islands, Greece, Europe

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

Guadalupe fur seal (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

Killer whales (Orcinus orca), off Isla Carmen, Baja California Sur, Mexico, North America

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

A pair of long-beaked common dolphins (Delphinus capensis), surfacing off Gorda Banks, Baja California Sur, 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

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

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

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

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

California sea lion (Zalophus californianus), porpoising in the water in Puerto Refugio, Baja California, Sea of Cortez, Mexico, North America

Binz, Rugen, West Pommerania Mecklenburg, Germany, Europe

Beach of Dafines Bay, Peninsula of Karaburun, within the Karaburun-Sazan Marine Parc, Vlore Bay, Albania, Europe

Black-browed albatross flying, Francisco Coloane Marine Reserve, Magallanes, Patagonia, Chile, South America

Beach near the Leela Hotel, Mobor, Goa, India

Sunset over the Tiracol River viewed from Fort Tiiracol, Goa, India

Washing at the ghats on the Narmada River at the Ahilya Fort and Temples, Maheshwar, Madhya Pradesh, India

Lobster pots or creels on the harbour at Portnalong, Isle of skye, Scotland, United Kingdom, Europe

Plastic debris washed ashore at Talisker Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Plastic debris washed ashore at Talisker Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Sunfish (Mola mola), trapped in lost fishing net, Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Sunfish (Mola mola), trapped in lost fishing net, Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Plastic debris washed ashore at Ardtreck Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Fishing gear on the harbour at Portnalong, Isle of skye, Scotland, United Kingdom, Europe

Plastic debris washed ashore at Talisker Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Rockfish (Scorpaena scrofa), trapped in lost fishing net, Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Plastic debris washed ashore at Ardtreck Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Plastic debris washed ashore at Talisker Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Plastic debris washed ashore at Ardtreck Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Fishing gear on the harbour at Portnalong, Isle of skye, Scotland, United Kingdom, Europe

Plastic debris washed ashore at Ardtreck Bay on the Isle of Skye, Scotland, United Kingdom, Europe

Rockfish (Scorpaena scrofa), trapped in lost fishing net, Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Spoof warning sign - cod

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay on the northwest side of the island of Maui, Hawaii, USA

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay on the northwest side of the island of Maui, Hawaii, USA

Adult green sea turtle (Chelonia mydas) in the protected marine sanctuary at Honolua Bay on the northwest side of the island of Maui, Hawaii, USA

Flying Squid Species in mid-air (Ommastrephes bartramii). Extremely rare unusual image. South Atlantic Ocean. MORE INFO: Flying Squid use membranes between their tentacles (visible on pic) & two fins at the rear of the mantle to glide through the air in a similar way to flying fish. These unique adaptations allow them to avoid predation more easily. Ommastrephid squids are among the strongest swimmers in the Cephalopoda. A number of species are fished commercially. This particular species (Ommastrephes bartramii), is commonly known as "Neon Flying Squid" due to its colouration and its ability to glide over the ocean surface as seen in the photographs. Please note that this is a genuine image of a wild animal in its natural environment. It is not a digital manipulation.

Flying Squid Species in mid-air (Ommastrephes bartramii). Extremely rare unusual image. South Atlantic Ocean. MORE INFO: Flying Squid use membranes between their tentacles (visible on pic) & two fins at the rear of the mantle to glide through the air in a similar way to flying fish. These unique adaptations allow them to avoid predation more easily. Ommastrephid squids are among the strongest swimmers in the Cephalopoda. A number of species are fished commercially. This particular species (Ommastrephes bartramii), is commonly known as "Neon Flying Squid" due to its colouration and its ability to glide over the ocean surface as seen in the photographs. Please note that this is a genuine image of a wild animal in its natural environment. It is not a digital manipulation.

Flying Squid Species in mid-air (Ommastrephes bartramii). Extremely rare unusual image. South Atlantic Ocean. MORE INFO: Flying Squid use membranes between their tentacles (visible on pic) & two fins at the rear of the mantle to glide through the air in a similar way to flying fish. These unique adaptations allow them to avoid predation more easily. Ommastrephid squids are among the strongest swimmers in the Cephalopoda. A number of species are fished commercially. This particular species (Ommastrephes bartramii), is commonly known as "Neon Flying Squid" due to its colouration and its ability to glide over the ocean surface as seen in the photographs. Please note that this is a genuine image of a wild animal in its natural environment. It is not a digital manipulation.