Views of the eastern side of the Antarctic Peninsula in the Weddell Sea, Antarctica, Polar Regions

Iceberg detail in and around the Antarctic Peninsula during the austral summer months, Southern Ocean, Antarctica, Polar Regions

Iceberg detail in and around the Antarctic Peninsula during the austral summer months, Antarctica, Southern Ocean, Polar Regions

Brash ice chokes the Lemaire Channel on the west side of the Antarctic peninsula in Antarctica, Polar Regions

River Coupall and waterfalls, Glen Etive, Highland, Scotland, United Kingdom, Europe

Paddy fields in Tawangmangu area, Karanganyar district, near Surakarta (Solo), Java island, Indonesia, Southeast Asia, Asia

Reno di Medels river, Val Piora, Canton Ticino, Switzerland

Sunset over The Bristol Channel from Dunraven Bay, Southerndown, Vale of Glamorgan, Wales, United Kingdom

Petrified forest, Agia Marina, Agios Nikolaos Geopark, beach with turquoise water in the south of Greece, Greece

View of hotels, chalets and snow covered mountains in Courmayeur at sunrise in winter, Courmayeur, Aosta Valley, Italian Alps, Italy

The frozen Campbell Draw Tank with approaching snow storm, Coconino National Forest, Arizona, United States of America

A cattle pond, Rarick Tank, Coconino National Forest, Arizona, United States of America

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

A view of the tidewater glacier in Isbukta (Ice Bay) on the western side of Spitsbergen Island, Svalbard Archipelago, Norway

Aerial of Pia glacier, Tierra del Fuego, Chile, South America

Aerial of Potter glacier, Tierra del Fuego, Chile, South America

Aerial of Potter glacier, Tierra del Fuego, Chile, South America

Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing on tundra in the Svalbard Archipelago, Norway, Arctic, Europe

Mangroves in front of King Leopold Sandstone formations Porosus Creek, Hunter River, Kimberley, Western Australia, Australia, Pacific

Aerial of the mountainous coastline around Kulusuk, Greenland, Polar Regions

Aerial of the mountainous coastline around Kulusuk, Greenland, Polar Regions

Mountainous landscape, Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Mountainous landscape, Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Great white egret (Ardea alba), Zimanga Game Reserve, South Africa, Africa

Adult female leopard seal (Hydrurga leptonyx) hauled out on ice at Brown Bluff near the Antarctic Peninsula, Antarctica, Polar Regions

Adult Weddell seal (Leptonychotes weddellii) hauled out on ice near the Antarctic Peninsula, Southern Ocean, Polar Regions

Ainsworth Bay, Alberto de Agostini National Park, Tierra del Fuego, Patagonia, Chile, South America

Nevado Ausangate in Andes, near Rainbow Mountain, near Uchullujllo, Pitumarca district, Canchis Province, Cuzco Region, Peru, South America

Scuro lake in spring, Val Piora, Canton Ticino, Switzerland

Riserva Naturale di Punta Bianca, Palma di Montechiaro, Agrigento, Sicily, Italy

Southern coast, sea and rock formations, Kleftiko, Milos Island, Cyclades Islands, Greek Islands, Greece, Europe

View of turquoise sea at Chrysi Ammoudia, Thassos, Aegean Sea, Greek Islands, Greece, Europe

Aerial of Wulaia Bay, Tierra del Fuego, Chile, South America

Aerial of Potter glacier, Tierra del Fuego, Chile, South America

Small creek at north of Prezba island, Lastovo island, Croatia, Southeast Europe

Views of Gnalodden cliff in Hornsund, on the island of Spitsbergen in the Svalbard Archipelago, Norway, Arctic, Europe

Ice in all of its myriad forms in the Svalbard Archipelago, Norway, Arctic, Europe

Views of the Vasilievbreen (Vasiliev Glacier), in Isbukta (Ice Bay) near the island of Spitsbergen in Svalbard, Norway, Arctic, Europe

Northern fulmar (Fulmarus glacialis glacialis) on the wing over calm seas in the Svalbard Archipelago, Norway, Arctic, Europe

A view of Swift Bay as seen from a commercial helicopter, Kimberley, Western Australia, Australia, Pacific

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

Views of Fortuna Bay on the northern coast of South Georgia, Southern Ocean, Polar Regions

Unusual window formation in iceberg showing Booth Island in the background on the western side of the Antarctic Peninsula, Antarctica, Polar Regions

View of the nearly full moon rising over snow-covered mountains on the Antarctic Peninsula, Antarctica, Polar Regions

Nisyros volcano, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe

Calanque d'En-Vau in Calanques National Park, Cassis, Bouches-du-Rhone, French Riviera, Provence-Alpes-Cote d'Azur, France, Europe

Tall mountains with snowy peaks reflecting in the calm water of the fjord at high tide with scenic clouds, Leknes, Lofoten Islands, Norway, Scandinavia, Europe

Little hamlet near the Nuuk Icefjord, Western Greenland, Denmark, Polar Regions

Views of waterfall near Grytviken, Swedish for Pot Cove, on South Georgia in the South Atlantic, Polar Regions

Aerial of Gombe Stream National Park, Lake Tanganyika, Tanzania, East Africa, Africa

Pinnacle Rock, a volcanic plug on Bartolome Island, one of the most spectacular features of the Galapagos islands, UNESCO World Heritage Site, Ecuador, South America

Xiannairi mountain, Yading Nature Reserve, Sichuan Province, China, Asia

Xiannairi mountain, Yading Nature Reserve, Sichuan Province, China, Asia

Fugle Fjord, Spitsbergen Island, Arctic, Norway, Europe

Yangmaiyong, Yading Nature Reserve, Sichuan Province, China, Asia

Aguila glacier, Tierra del Fuego, Chile, South America

Pitt Point, a volcanic tuff formation on San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Xiaruoduojio mountain, Yading Nature Reserve, Sichuan Province, China, Asia

Capilano Lake, Vancouver, British Columbia, Canada, North America

Porphyry Basin Waterfall, San Juan National Forest, Colorado, United States of America, North America

Mount Etna, Sicily, Italy, Europe

Paradise Divide, Grand Mesa-Uncompahgre-Gunnison National Forest, Colorado, United States of America, North America

Porphyry Basin Waterfall, San Juan National Forest, Colorado, United States of America, North America

Parry's primrose (Primula parryi) growing in a stream, American Basin, Uncompahgre National Forest, Colorado, United States of America, North America

Sunset behind Mirror Lake, Gunnison National Forest, Colorado, United States of America, North America

Cascades, American Basin, Uncompahgre National Forest, Colorado, United States of America, North America

North Clear Creek Falls, Rio Grande National Forest, Colorado, United States of America, North America

Okavango Delta in Botswana, Africa

Tiny Red Goby (Pleurosicya sp) Two resting on coral. Mabul Island, Borneo, Malaysia (RR)

Split image of pristine coral reef and support ship, Rongelap, Marshall Islands, Micronesia, Pacific

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Needle cuttlefish, Sepia aculeata, front view at night, Dumaguete, Negros Island, Philippines.

Nudibranch, Atlantis house reef, Dumaguete, Negros Island, Philippines.

Wave breaking over shallow coral reef, Ailuk atoll, Marshall Islands, Pacific

Riding a traditional outrigger canoe, Ailuk atoll, Marshall Islands, Pacific

Nudibranch, Jorunna funebris, feeding on blue sponge, Haliclona sp., Monkey beach, Puerto Galera, Mindoro, Philippines.

Reef octopus, Octopus cyanea, eye and siphon detail, Rongelap, Marshall Islands, Micronesia

Clark's anemonefish, Amphiprion clarkii, unusual color variant, male, Dauin, Negros, Philippines..

Starry night octopus, Octopus luteus, foraging on coral reef at night, Malapascua, Cebu, Philippines, Visayan Sea.

Common lionfish, Pterois volitans, blends in with a variety of soft corals and sponges, Cars, Dumaguete, Negros Island, Philippines.

Pink hydrocoral (lace coral), Stylaster sp., Namu atoll, Marshall Islands (N. Pacific).

Family of false clown anemone fish, Amphiprion ocellaris, seeking refuge in sea anemone, Masaplod, Dumaguete, Negros Island, Philippines.

Mandarinfish, Synchiropus splendidus, male, Malapascua, Cebu, Philippines, Visayan Sea.

Nudibranch, Chromodoris magnifica, Dumaguete, Negros Island, Philippines.

Bluefin trevally, Caranx melampygus, Ailuk atoll, Marshall Islands, Pacific

Horseshoe clam, Hippopus hippopus, Rongelap, Marshall Islands, Micronesia

Saddled butterflyfish, Chaetodon ephippium, Namu atoll, Marshall Islands (N. Pacific).

Beaked Whale stranded on coral reef during low tide, Mesoplodon sp., Mili, Marshall Islands (N. Pacific)..

Split image of Smallspotted dart, Trachinotus baillonii, swimming along the sandy shore at dusk, Rongelap, Marshall Islands, Micronesia

Pink anemonefish on sea anemone, Amphiprion periderion, Rongelap, Marshall Islands (N. Pacific).

Ornate ghost pipefish, Solenostomus paradoxus, Dumaguete, Negros Island, Philippines.

Dorid nudibranch, Glossodoris averni, La Laguna, Puerto Galera, Mindoro, Philippines.

Broadband cuttlefish, Sepia latimanus, in sandy bottom, Gato Island, Cebu, Philippines.

Mushroom coral, Ctenactis sp., night, Dumaguete, Negros Island, Philippines.

Split image of staghorn coral, Acropora sp., and uninhabited island, Ailuk atoll, Marshall Islands, Pacific

Common lionfish, Pterois volitans, close-up, Sabang wreck, Puerto Galera, Mindoro, Philippines.

Brown algae, Sargassum horneri and Undaria pinnatifida, Chusan, Ulleungdo, South Korea (East Sea or Sea of Japan).

Whitetip reef shark, Triaenodon obesus, Namu atoll, Marshall Islands (N. Pacific).