1384-175 - Groyne on sand beach to trap sediment, Playa Norte, Isla Mujeres, Caribbean Coast, Cancun, Quintana Roo, Mexico

860-292438 - Coral nursery monitoring in Mayotte lagoon

860-292437 - Coral bunches scattered on white sand in the pools of Longoni, Mayotte

860-292436 - Coral nursery in Mayotte lagoon

860-291996 - Fluorescent Tube Anemone (Cerianthidae sp) hunting at night on the sand of the S pass. Mayotte

860-291995 - Small fluorescent sea anemones at night on the bottom of the S pass, Mayotte

860-291992 - Small fluorescent sea anemone at night on the bottom of the S pass, Mayotte

860-291907 - Dugong (Dugong dugon) feeding on a seagrass meadow (Halophila stipulacea), accompanied by a young Golden trevally (Gnathanodon speciosus). Marsa Alam, Egypt. Red Sea

860-291904 - Dugong (Dugong dugon) rear view showing the distinctive mammalian tail. Marsa Alam, Egypt. Red Sea

832-402791 - Aerial view, sinter steps, sinter terraces, lime sinter terraces, Egerszalok, Egerszalok, Eger, Heves, Hungary, Europe

832-402790 - Aerial view, sinter steps, sinter terraces, lime sinter terraces, Egerszalok, Egerszalok, Eger, Heves, Hungary, Europe

860-291770 - Plage de l'Hermitage, L'Hermitage les Bains, Reunion Island, France

860-291496 - Midnight sun on the ice sheet. The brown sediment on the ice is created by the rapid melting of the ice. Landscape of the Greenland ice sheet near Kangerlussuaq. America, North America, Greenland, danish territory

860-291495 - Drainage system with lake on the surface of the ice sheet. The brown sediment on the ice is created by the rapid melting of the ice. Landscape of the Greenland ice sheet near Kangerlussuaq. America, North America, Greenland, danish territory

860-291494 - Drainage system on the surface of the ice sheet. The brown sediment on the ice is created by the rapid melting of the ice. Landscape of the Greenland ice sheet near Kangerlussuaq. America, North America, Greenland, danish territory

860-291493 - Drainage system on the surface of the ice sheet. The brown sediment on the ice is created by the rapid melting of the ice. Landscape of the Greenland ice sheet near Kangerlussuaq. America, North America, Greenland, danish territory

860-291492 - Camp with tents on the ice sheet. The brown sediment on the ice is created by the rapid melting of the ice. Landscape of the Greenland ice sheet near Kangerlussuaq. America, North America, Greenland, danish territory

860-291479 - Spotted marbled shrimp (Saron neglectus) on sand, Mayotte

832-398582 - Green Acacia tree Vachellia tortilisstands in front of the Etosha salt pan in the desert. On the salt pan many animals are crossing from the left to the right. Etosha National Park, Namibia, Africa

832-398001 - Giraffe (Giraffa camelopardalis) stands in front of salt pan. Etosha National Park, Namibia, Africa

832-396452 - Salt in small bowl with spoon, natural salt, salt crystals, Austria, Europe

860-290737 - White spotted octopus (Octopus macropus) above bottom. Marine invertebrates of the Canary Islands.

1350-6199 - Lake Belgrano view from Cerro Leon (1434m), Perito Moreno National Park, Southern Andean Patagonia, Santa Cruz, Argentina

1350-6257 - A nursehound (Scyliorhinus stellaris) watches closely a group of small cod passing by. Shot taken off Chioggia (VE) on one of the many rocky formations developed in the seabed of the upper Adriatic, called Tegnue. These bio-sediments are similar to coral reefs and for this reason they are also called Adriatic coral reefs.

1350-5534 - Sandy sediments in low tide in a river close to the sea. Isla, Cantabria, Spain, Europe.

1350-5533 - Sandy sediments in low tide in a river close to the sea. Isla, Cantabria, Spain, Europe.

832-394756 - Turquoise clear water of a hot spring, Sapphire Pool, Black Sand Basin and Biscuit Basin, Yellowstone National Park, Wyoming, USA, North America

832-394759 - Black Opal Pool, Hot Spring, Yellow Algae and Mineral Deposits, Biscuit Basin, Yellowstone National Park, Wyoming, USA, North America

832-394761 - Tourist on a logging road in front of steaming hot spring, Biscuit Basin, Yellowstone National Park, Wyoming, USA, North America

832-394760 - Dead trees at Opalescent Pool with mineral deposits, Black Sand Basin, Yellowstone National Park, Wyoming, USA, North America

832-394758 - Yellow bacteria and algae in a hot spring at Black Sand Basin and Biscuit Basin, Yellowstone National Park, Wyoming, USA, North America

832-394757 - Turquoise clear water of a hot spring, Sapphire Pool, Black Sand Basin and Biscuit Basin, Yellowstone National Park, Wyoming, USA, North America

832-393318 - Steaming hot spring, dead trees in the back, Noris Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-393317 - Emerald Spring, Noris Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

860-290408 - Streaked gurnard (Trigloporus lastoviza), Puolo Bay, Marine Protected area Punta Campanella, Massa Lubrense, Penisola Sorrentina, Costa Amalfitana, Italy, Tyrrhenian Sea, Mediterranean

860-290010 - Pearly razorfish, (Xyrichtys novacula), Ponza island, Italy, Tyrrhenian Sea, Mediterranean

860-290013 - Actinaria, sand anemone, Condylactis aurantiaca, Ponza island, Italy, Tyrrhenian Sea, Mediterranean

860-290407 - Sea star, (Astropecten aranciacus), Puolo Bay, Marine Protected area Punta Campanella, Massa Lubrense, Penisola Sorrentina, Costa Amalfitana, Italy, Tyrrhenian Sea, Mediterranean

860-290263 - Atlantic stargazer(Uranoscopus scaber). He lives buried in the sand, with only his two eyes and his mouth sticking out of the bottom. Fish of the Canary Islands, Tenerife.

860-290015 - Sea horse (Hippocampus guttulatus), Ponza island, Italy, Tyrrhenian Sea, Mediterranean

860-290012 - Pearly razorfish juvenile, (Xyrichtys novacula), over a sandy bottom, Ponza island, Italy, Tyrrhenian Sea, Mediterranean

860-290324 - Foureyed sole (Microchirus ocellatus). Pleuronectiformes (Flatfishes), Soleidae (Soles). Fish of the Canary Islands, Tenerife.

860-290014 - Short-snouted seahorse, (Hippocampus hippocampus), male, Ponza Island, Italy, Tyrrhenian Sea, Mediterranean Sea.

860-290411 - Flame scallop (Limaria hians or Lima hians), Puolo, Marine Protected area Punta Campanella, Massa Lubrense, Penisola Sorrentina, Costa Amalfitana, Italy, Tyrrhenian Sea, Mediterranean

860-290380 - Yellow seafan (Leptogorgia viminalis), Underwater backgrounds of the Canary Islands, Gran Canaria..

832-392943 - Riesenburg cave, natural karst cave ruin of Frankendolomite, geotope, natural monument, in the back climber at rock face, near Engelhardsberg, district of Markt Wiesenttal, Upper Franconia, Franconian Switzerland, Franconia, Bavaria, Germany, Europe

832-392530 - Red mineral deposits at a thermal spring, Noris Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-392532 - Red mineral deposits and green algae at a thermal spring, steaming hot springs, Noris Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-392942 - Versturzhoehle Riesenburg, natural karst cave ruin of Frankendolomite, geotope, natural monument, near Engelhardsberg, district of Markt Wiesenttal, Upper Franconia, Franconian Switzerland, Franconia, Bavaria, Germany, Europe

832-392522 - Orange and red mineral deposits, steaming hot springs, morning sun, West Thumb Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-392521 - Orange and red mineral deposits, steaming hot springs, morning sun, West Thumb Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-392531 - Red mineral deposits and green algae at a thermal spring, steaming hot springs, Whirligig Geyser, Noris Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

1349-894 - Amazon River, Manaus, Brazil

1349-755 - River Nile Delta and Suez Canal, Egypt, satellite image

832-391539 - Steaming hot spring with colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-391542 - Steaming hot spring with colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-391543 - Steaming hot spring with sun star, Colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-391537 - Steaming hot spring with colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

832-391540 - Steaming hot spring with sun star, Colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

1350-2244 - Tourists on a snorkeling excursion to view black tipped sharks and sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

1350-2247 - Sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

1350-2246 - Albatros. Tourists on a snorkeling excursion to view black tipped sharks and sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

1350-2245 - Sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

860-288797 - Remarkable flysch formations of Deba, Basque Coast Geopark, Basque Country, Spain. Flysch formed at the end of the Mesozoic era in the Cretaceous - flyschs are formed by sediment accumulation following repeated submarine avalanches, due to earthquakes, and producing after compaction and crystallization very regular layers of sandstone and limestone here recovered by Pyrenean orogeny and released by erosion.

860-288881 - Misool landscape, Raja Ampat, Indonesia

860-288796 - Remarkable flysch formations of Deba, Basque Coast Geopark, Basque Country, Spain. Flysch formed at the end of the Mesozoic era in the Cretaceous - flyschs are formed by sediment accumulation following repeated submarine avalanches, due to earthquakes, and producing after compaction and crystallization very regular layers of sandstone and limestone here recovered by Pyrenean orogeny and released by erosion.

832-389988 - Two Giraffes (Giraffa camelopardalis) standing on the salt pan in Etosha National Park, Namibia, Africa

832-389107 - Camels loaded with rock salt plates walk through a salt lake, Danakil depression, Ethiopia, Africa

832-389108 - Camels loaded with rock salt plates walk through a salt lake, Danakil depression, Ethiopia, Africa

832-389109 - Camels loaded with rock salt slabs walk at sunset through a salt lake, salt desert, Danakil depression, Ethiopia, Africa

832-389110 - Camels loaded with rock salt slabs walk at sunset through a salt lake, salt desert, Danakil depression, Ethiopia, Africa

832-389111 - Camels loaded with rock salt slabs walk at sunset through a salt lake, salt desert, Danakil depression, Ethiopia, Africa

832-388929 - Geothermal area with sulphur deposits and acidic brines, Dallol, Danakil depression, Ethiopia, Africa

832-388928 - Geothermal area with sulphur deposits and acidic brines, Dallol, Danakil depression, Ethiopia, Africa

832-388942 - Sunrise over the lava field, shield volcano Erta Ale, Danakil depression, Afar region, Ethiopia, Africa

832-388936 - Stacked salt plates, dry salt lake at Dallol, Danakil Depression, Afar Region, Ethiopia, Africa

832-388934 - Afar nomads loading dromedary with salt plates from dry salt lake, near Dallol, Danakil Depression, Afar Region, Ethiopia, Africa

832-388961 - Aerial view, volcano, crater rim with yellow sulphur, near Frioland ao Fjallabaki, Iceland, Europe

832-388935 - Dromedaries lie in dry salt lake, are loaded with salt plates, near Dallol, Danakil depression, Afar region, Ethiopia, Africa

832-388938 - Village with huts of the Afar nomads at sunset, Danakil Depression, Afar Region, Ethiopia, Africa

832-388958 - Aerial view, volcanic crater with colourful sulphur deposits, near Frioland ao Fjallabaki, Iceland, Europe

832-388846 - Salt motives and patterns, Tavira salinas, Algarve, Portugal, Europe

832-388571 - Coastal road through sand dunes, Parque Natural de Corralejo, Fuerteventura, Canary Islands, Spain, Europe

832-388527 - Afar shepherd leads a dromedary caravan loaded with rock salt plates (halite) across the Lake Assale (Lake Assale), Danakil Depression, Afar Region, Ethiopia, Africa

832-388127 - Dried clay soil in Deadvlei, Sossusvlei, Namib Desert, Namib-Naukluft National Park, Namibia, Africa

832-388528 - Sunrise over the Assale Salt Lake, Hamadela, Danakil Depression Afar Dreick, Ethiopia, Africa

832-388499 - Meerkat (Suricata suricatta), standing in the grass savannah and staring watchfully into the distance, Makgadikgadi salt pans, Botswana, Africa

832-388131 - Dead camelthorn trees (Acacia erioloba) in Deadvlei, Sossusvlei, Namib Desert, Namib-Naukluft National Park, Namibia, Africa

832-388071 - Salt plain, sign Badwater Basin, Death Valley National Park, California, USA, North America

832-388067 - Desert, Historic Borax Mine, 20 mule team car, Harmony Borax Works, Death Valley National Park, California, USA, North America

832-387790 - Erupting Pohutu Geyser with rainbow, sinter terraces, Te Puia, Whakarewarewa, Rotorua, Bay of Plenty, New Zealand, Oceania

832-384731 - Geothermal area with sulphur deposits and acidic salt lakes, Dallol, Danakil Valley, Ethiopia, Africa

832-384724 - Windsock at Bitterwasser Airfield on the edge of the Kalahari, Namibia, Africa

832-383842 - Salt mining at the salt lake Salar de Uyuni, Altiplano, Bolivia, South America

832-384333 - Sinter terraces, hot springs, orange mineral deposits, Palette Springs, Upper Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America

832-384323 - Detail photo, hot spring with orange mineral deposits and algae, Palette Springs, Upper Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America

832-384326 - Sinter terraces with calcareous tuff deposits, hot springs, colorful mineral deposits, Palette Springs, Lower Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America

832-384732 - Geothermal area, salt crystals with sulphur deposits, Dallol, Danakil valley, Ethiopia, Africa

832-384325 - Dead trees on sinter terraces, hot springs, orange mineral deposits, Palette Springs, Upper Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America

832-383839 - Salt crust, Salar de Uyuni, Altiplano, Bolivia, South America