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An adult green sea turtle (Chelonia mydas), underwater in Fernandina Island, Galapagos, Ecuador, South America
An adult green sea turtle (Chelonia mydas), underwater in Fernandina Island, Galapagos, Ecuador, South America
Rock formations and reflection, Tungeneset, Senja, Norway, Scandinavia, Europe
Pools and rocks at low tide, sunrise, Port Eynon Bay, Gower Peninsula, Swansea, Wales, United Kingdom, Europe
Adult male Galapagos marine iguana (Amblyrhynchus cristatus), underwater, Fernandina Island, Galapagos, Ecuador, South America
Walkway on a pond full of algae on a natural reserve in the south of France with mountains in the background, Occitanie, France, Europe
The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.
Rocks at Castle Sands in St. Andrews, Fife, Scotland, United Kingdom, Europe
A rocky shoreline covered with clusters of blue-black mussels. The mussels cling tightly to the rocks, creating a textured surface. Some green algae is visible in the water pools among the rocks, reflecting sunlight.
Red and green algae-covered snow on Petermann Island, Antarctica, Southern Ocean, Polar Regions
Nudibranch feeding on algae, Papua New Guinea.
A pair of nudibranch feeding on algae, Papua New Guinea.
Nudibranch feeding on algae, Papua New Guinea.
Nudibranch feeding on algae, Papua New Guinea.
Nudibranch feeding on algae, Papua New Guinea.
California sea lions (Zalophus californianus), stampeding on the beach in Puerto Refugio, Baja California, Sea of Cortez, Mexico, North America
Patterns in the kelp at low tide on New Island in the Falkland Islands
Adult green sea turtle (Chelonia mydas), feeding on algae near Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Castle Geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
A myriad of hard and soft corals, as well as tropical reef fish at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
The Lindblad Expedition ship National Geographic Explorer in the Svalbard Archipelago, Norway, Arctic, Europe
A Spotted Trunkfish (Lactophrys bilcaudalis) swims over an algae covered coral reef in the Atlantic Ocean off the coast of Key Largo, Florida.
Nudibranch feeding on algae, Papua New Guinea.
Nudibranch feeding on algae, Papua New Guinea.
Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize
Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) feeding underwater in the Galapagos, UNESCO World Heritage Site, Ecuador, South America
Adult brown bear (Ursus arctos) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America
Adult male Galapagos marine iguana (Amblyrhynchus cristatus), underwater, Fernandina Island, Galapagos, Ecuador, South America
View towards islands of Harris and Lewis from Taransay, Outer Hebrides, Scotland, United Kingdom, Europe
Grand Prismatic Spring and Excelsior Pool behind, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) feeding on algae at low tide in the Galapagos, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Tidal rock pools and Mumbles Lighthouse, Bracelet Bay, Mumbles Head, Gower Peninsula, Swansea, Wales, United Kingdom, Europe
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Hippo (Hippopotamus amphibius), Kruger National Park, Mpumalanga, South Africa, Africa
St. Michael's Mount, Marazion, Cornwall, England, United Kingdom, Europe
Adult king penguins and okum boy chicks (Aptenodytes patagonicus) heading to sea in Gold Harbor, South Georgia, Polar Regions
Blooming of eriofori (cotton grass), Levanne mountains. Gran Paradiso National Park, Alpi Graie (Graian Alps), Italy, Europe
Adult green sea turtle (Chelonia mydas), feeding on algae near Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Whirligig Geyser runoff, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Coastline at low tide, west Senja, Norway, Scandinavia, Europe
Adult green sea turtle (Chelonia mydas), feeding on algae near Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
St. Michael's Mount, Marazion, Cornwall, England, United Kingdom, Europe
Large rock at low tide, west Senja, Norway, Scandinavia, Europe
Wooden boardwalk over the mineral sinter formations on Geyser Hill, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Seaweed covered rocks and hanging fishing nets at low tide, west Senja, Norway, Scandinavia, Europe
St. Michael's Mount, Marazion, Cornwall, England, United Kingdom, Europe
Sunrise and reflections on Aiguille Rousse, Gran Paradiso National Park, Alpi Graie (Graian Alps), Italy, Europe
Whirligig Geyser runoff, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Crabeater seal camouflaged in algae, Antarctica, Polar Regions
Eruption of Castle Geyser with rainbow in the spray, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Crevettes (prawns), Le Bistrot de Bernard, Ars, Ile de Re, Charente Maritime, France, Europe
Saltwater (estuarine) crocodile (Crocodylus porosus), Sarawak, Borneo, Malaysia, Southeast Asia, Asia
Adult green sea turtle (Chelonia mydas), feeding near Buccaneer Cove, Santiago Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Gentoo penguin (Pygoscelis papua) vocalizing on snow with red algae, Antarctica, Polar Regions
Grand Prismatic Spring in winter, Lower Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Blue Star Spring, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
St. Michael's Mount, Marazion, Cornwall, England, United Kingdom, Europe
Applecross beach, Wester Ross, Scotland, United Kingdom, Europe
Man and woman working in seaweed cultivation, Zanzibar, Tanzania, East Africa, Africa
Two women working in seaweed cultivation, Zanzibar, Tanzania, East Africa, Africa
Young woman carrying seaweed from the ocean on her back, Zanzibar, Tanzania, East Africa, Africa
Tropical fern above algae covered pond
Lichen in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway
Moss and lichens on tree, North Island, New Zealand
Gravestone aged with lichens in the churchyard graveyard at Landewednack, Cornwall, England, United Kingdom
Moss and lichens on tree, North Island, New Zealand
Two smiling Zanzibari women working in seaweed cultivation, Zanzibar, Tanzania, East Africa, Africa
Mussels and seaweed on the tidal seashore, Cullen, Scotland, United Kingdom, Europe
Algae in the hot springs at Orakei Korako, South Auckland, North Island, New Zealand, Pacific
Tourist photographing moss and lichens on tree, North Island, New Zealand
Great Blue Heron on Santa Cruz, Galapagos Islands, Ecuador
Moss and lichens on tree, North Island, New Zealand
Ile Molene (Ile de Molene) (Molene Island), Brittany, France, Europe
Seaweed on beach, Mellon Udrigle, Wester Ross, Highland region, Scotland, United Kingdom, Europe
Seaweed drying in the sun, Uroa beach, Zanzibar, Tanzania, East Africa, Africa
Seaweed farming, Rebun Island, Hokkaido, Japan, Asia
The Hartbeespoort Dam bypass channel in South Africa's North West Province. The water is green due to algae.
The Hartbeespoort dam in South Africa's North West Province. The water is green due to algae growth.
Red algae in the snow on a receding glacier in Suspiros Bay on Joinville Island just off the Antarctic Peninsular. The peninsular is one of the fastest warming places on the planet.
Humpback Whales (Megaptera novaeangliae) feeding on Krill in Wilhelmena Bay, Antarctic Peninsular and surfacing wth a metre of a zodiak. The whales migrate here in the summer to feed on the Krill. Krill numbers have declined by over 50%. They feed on algae that grows on the underside of sea ice, As the sea ice melts, both algae and krill decline. This shot has penguins resting on an iceberg in the background.
Algae in melting snow on Joinville Island just off the Antarctic Peninsular which is one the the fastest warming places on the planet.
A Kittiwake, Rissa tridactyla, on the Farne Islands, Northumberland, UK, next to a pool with red algae. Kittiwakes have declined drastically due to climate change causing their main fish prey species to migrate further north to find cooler sea temperatures.
A dried up lake at Tehachapi Pass, California, USA. California is in the midst of a four year long drought.
A dried up lake at Tehachapi Pass, California, USA. California is in the midst of a four year long drought.
Humpback Whales (Megaptera novaeangliae) feeding on Krill in Wilhelmena Bay, Antarctic Peninsular. The whales migrate here in the summer to feed on the Krill. Krill numbers have declined by over 50%. They feed on algae that grows on the underside of sea ice, As the sea ice melts, both algae and krill decline. An expedition cruise ship in the background
Humpback Whales (Megaptera novaeangliae) feeding on Krill in Wilhelmena Bay, Antarctic Peninsular. With passengers from an expedition crusie in Zodiaks. The whales migrate here in the summer to feed on the Krill. Krill numbers have declined by over 50%. They feed on algae that grows on the underside of sea ice, As the sea ice melts, both algae and krill decline.
Humpback Whales (Megaptera novaeangliae) feeding on Krill in Wilhelmena Bay, Antarctic Peninsular. The whales migrate here in the summer to feed on the Krill. Krill numbers have declined by over 50%. They feed on algae that grows on the underside of sea ice, As the sea ice melts, both algae and krill decline.
A pool coloured red from algae that have been fertilized by seabird guano on the Farne Islands, Northumberland, UK.
Seaweed farmer, Rebun Island, Hokkaido, Japan, Asia
Green algae and yellow lichen on the Farne Islands, Northumberland, UK.
The Hartbeespoort dam in South Africa's North West Province. The water is green due to algae growth.
Coral on the Great Barrier Reef, off Cairns, Queensland, Australia, Pacific
Bubbles of oxygen produced by algae as they photosynthesize
Underwater vegetation, predominantly stonewort algae (Chara rusbyana), Sucuri River, Bonito, Mato Grosso do Sul, Brazil, South America
Split image of rocks and green algae (Caulerpa racemosa), St. Peter and St. Paul's rocks, Brazil, South America
Green algae (Caulerpa racemosa) and black durgon (Melichthys niger), schooling, St. Peter and St. Paul's rocks, Brazil, South America
Blue-barred parrotfish (Scarus ghobban), Mili, Marshall Islands, Pacific