A herd of Common Plains Zebra (Grant's) drinking, Grumeti, Tanzania

A herd of Common Plains Zebra (Grant's) drinking, Grumeti, Tanzania

Common Plains Zebra (Grant's) drinking, Grumeti, Tanzania

A herd of Common Plains Zebra (Grant's) drinking, Grumeti, Tanzania

Just before surfacing a beluga whale (Delphinapterus leucas) exhales while its blowhole is still submerged creating large air bubbles. St. Lawrence estuary, Canada

Christian Ernist (Sweden) & Christian maldame (France during the static apnea.at the Oslo Ice Challenge 2009. Oslo, Norway

Competitor in the Annual World Bog Snorkelling Championships

Competitor in the Annual World Bog Snorkelling Championships

Competitor in the Annual World Bog Snorkelling Championships

Snorkelers on the surface of a blue hole. Virgin Blue Hole dive site, Palau, Micronesia, Pacific Ocean. More info: Blue holes such as this are submerged limestone sink holes.

Orkney Islands Sept 2011 Wave and Tidal Power shoot - The Pelamis Wave Power machine in Orkney - alongside in Lyness - the machine is the P2 . The Pelamis absorbs the energy of ocean waves and converts it into electricity. The machine floats semi-submerged on the surface of the water and is made up of a number of cylindrical sections joined together by hinged joints. As waves pass down the length of the machine these sections flex relative to one another. The motion at each hinged joint is resisted by hydraulic cylinders which pump fluid into high pressure accumulators allowing electrical generation to be smooth and continuous. Control of the resistance applied by the hydraulic cylinders allows generation to be maximised when waves are small, and the machine response to be minimised in storms. All generation systems are sealed and dry inside the machines and power is transmitted to shore using standard subsea cables and equipment.

Orkney Islands Sept 2011 Wave and Tidal Power shoot - The Pelamis Wave Power machine in Orkney - alongside in Lyness - the machine is the P2 . The Pelamis absorbs the energy of ocean waves and converts it into electricity. The machine floats semi-submerged on the surface of the water and is made up of a number of cylindrical sections joined together by hinged joints. As waves pass down the length of the machine these sections flex relative to one another. The motion at each hinged joint is resisted by hydraulic cylinders which pump fluid into high pressure accumulators allowing electrical generation to be smooth and continuous. Control of the resistance applied by the hydraulic cylinders allows generation to be maximised when waves are small, and the machine response to be minimised in storms. All generation systems are sealed and dry inside the machines and power is transmitted to shore using standard subsea cables and equipment.

Orkney Islands Sept 2011 Wave and Tidal Power shoot - The Pelamis Wave Power machine in Orkney - alongside in Lyness - the machine is the P2 . The Pelamis absorbs the energy of ocean waves and converts it into electricity. The machine floats semi-submerged on the surface of the water and is made up of a number of cylindrical sections joined together by hinged joints. As waves pass down the length of the machine these sections flex relative to one another. The motion at each hinged joint is resisted by hydraulic cylinders which pump fluid into high pressure accumulators allowing electrical generation to be smooth and continuous. Control of the resistance applied by the hydraulic cylinders allows generation to be maximised when waves are small, and the machine response to be minimised in storms. All generation systems are sealed and dry inside the machines and power is transmitted to shore using standard subsea cables and equipment.

Orkney Islands Sept 2011 Wave and Tidal Power shoot - The Pelamis Wave Power machine in Orkney - alongside in Lyness - the machine is the P2 . The Pelamis absorbs the energy of ocean waves and converts it into electricity. The machine floats semi-submerged on the surface of the water and is made up of a number of cylindrical sections joined together by hinged joints. As waves pass down the length of the machine these sections flex relative to one another. The motion at each hinged joint is resisted by hydraulic cylinders which pump fluid into high pressure accumulators allowing electrical generation to be smooth and continuous. Control of the resistance applied by the hydraulic cylinders allows generation to be maximised when waves are small, and the machine response to be minimised in storms. All generation systems are sealed and dry inside the machines and power is transmitted to shore using standard subsea cables and equipment.

Competitor in the Annual World Bog Snorkelling Championships

Competitor in the Annual World Bog Snorkelling Championships

Grey Wagtail (Motacilla cinerea) with some juvenille plumage sitting on submerged fence post. Wagtails like perches over the water to preen and rest.. Argyll, Scotland

Diving british ship wrecks in the English Channel

Low water level reveals old walls of Mardale village that was flooded when Haweswater reservoir was created, Lake District, Cumbria, England, United Kingdom, Europe

Diving british ship wrecks in the English Channel

Competitor in the Annual World Bog Snorkelling Championships

Aerial views of the Napoli sitting off the Devon coastline near Sidmouth and Branscombe. Devon, UK

Grey Wagtail (Motacilla cinerea) with some juvenille plumage sitting on submerged fence post. Wagtails like perches over the water to preen and rest.. Argyll, Scotland

Competitor in the Annual World Bog Snorkelling Championships

Buffalo (Bison bison) herd crossing the Yellowstone River in Yellowstone National Park, Wyoming, USA.

Buffalo (Bison bison) herd crossing the Yellowstone River in Yellowstone National Park, Wyoming, USA.

Harbor seal (Phoca vitulina) hauled out on submerged log in Misty Fjords National Monument, Southeast Alaska, USA

Harbor seal (Phoca vitulina) hauled out on submerged log in Misty Fjords National Monument, Southeast Alaska, USA

Diving british ship wrecks in the English Channel (rr)

Low water level reveals old walls of Mardale village that was flooded when Haweswater reservoir was created, Lake District, Cumbria, England, United Kingdom, Europe

Buffalo (Bison bison) herd crossing the Yellowstone River in Yellowstone National Park, Wyoming, USA.

Competitor in the Annual World Bog Snorkelling Championships

Palmate Newt (Triturus helvetica), submerged in puddle while on the move Argyll Scotland, UK

Christian Ernist (Sweden) & Christian maldame (France during the static apnea.at the Oslo Ice Challenge 2009. Oslo, Norway

Buffalo (Bison bison) herd crossing the Yellowstone River in Yellowstone National Park, Wyoming, USA.

Canoeist on the River Brathay near Ambleside, Lake District, Cumbria, England, United Kingdom, Europe

A cairn built on rocks that would noramlly be under water and a dry stone wall that was submerged when the reservoir was built. Thirlmere Reservoir, Lake District, Cumbria, England, United Kingdom, Europe

Buffalo (Bison bison) herd crossing the Yellowstone River in Yellowstone National Park, Wyoming, USA.

Dipper (Cinclus cinclus) perched on broken fence submerged in water. Argyll, Scotland, UK

Buffalo (Bison bison) herd crossing the Yellowstone River in Yellowstone National Park, Wyoming, USA.

Monkey in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkey in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkey in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

Monkeys in a natural onsen (hot spring), located in Jigokudani Monkey Park, Nagono prefecture,Japan.

A split shot of diver taken from Capodacqua lake, in Abruzzo (Italy). Half dome is in the water depicting the submerged ruins of the middle-age mills, the other half is above water surface, showing the ancient paint factory located on the shore of the lake and, further away, the scenery of the mountains of the Tirino Valley.

sharks in an aquarium, L'Aquarium, Moll D'Espana, Barcelona, Catalonia, Spain

Flash Floods in Bangladesh.

Flash Floods in Bangladesh.

Flash Floods in Bangladesh.

Flash Floods in Bangladesh.

Flash Floods in Bangladesh.

Underwater off Tanna, Vanuatu, South Pacific, Oceania

Snorkeling, Malekula, Vanuatu, South Pacific, Oceania

Underwater off Tanna, Vanuatu, South Pacific, Oceania

The Schlegeis reservoir in Austria

Abandoned shop on the beach of Sochi, Black Sea, Russia, Eurasia

Hippopotamus in a river resting in Serengeti National Park, Tanzania Africa

Lake Resia, Lago di Resia, with the tower of the old church of Graun submerged in the lake, Vinschgau, Val Venosta, Alto Adige, Italy, Europe

Sunken cargo ship in the port of Bacoli, Pozzuoli, Naples, Italy, Europe

A group of hippopotamus in a river. Serengeti National Park, Tanzania, Africa

Wreck in the water, Cape Agulhas, Africa

American tank M42 Duster with self-propelled 40mm anti-tircraft gun, wreck, Hashemite Kingdom of Jordan, Red Sea, Western Asia

American tank M42 Duster with self-propelled 40mm anti-tircraft gun, wreck, Hashemite Kingdom of Jordan, Red Sea, Western Asia

Little boy with swimming goggles, jumping into swimming pool, underwater, Ukraine, Europe

Groynes, wooden stages and pier with diving gondola, long time exposure, Zingst, Fischland-Darß-Zingst, Western Pomerania Lagoon Area National Park, Mecklenburg-Western Pomerania, Germany, Europe

Children playing in a derelict barge on Lake Victoria, Bukoba, Tanzania, Africa

Canoe passing a partly submerged outdoor table setting in lake Chiemsee, Fraueninsel island, Chiemgau, Upper Bavaria, Germany, Europe

Hippo (Hippopotamus amphibius), located in shallow water, Moremi Wildlife Reserve, Ngamiland, Botswana, Africa

Little boy with swimming goggles, learning to swim underwater in the pool, Ukraine, Europe

Sellin pier with diving gondola, lit at dusk, Gromitz, Schleswig-Holstein, Germany, Europe

Marine Iguanas (Amblyrhynchus Cristatus) Swimming In A Lagoon, Galapagos, Equador

Half A Pomegranate And Blueberries Floating In Water

Siamese Fighting Fish (Betta Splendens)

Green Sea Turtle Turtle Cleaning Station Near Makena State Park Maui Hawaii Usa

Maui Hawaii Usa; Scuba Divers And A Green Sea Turtle

Apo Island Marine Park Negros Oriental Island Philippines Southeast Asia; Scuba Divers

A Woman Floating Underwater, Tarifa, Cadiz, Andalusia, Spain

Underwater Movement Of A Wave, Tarifa, Cadiz, Andalusia, Spain

A Woman On A Surfboard Under The Water, Tarifa, Cadiz, Andalusia, Spain

A Woman On A Surfboard Under The Water, Tarifa, Cadiz, Andalusia, Spain

A Woman Sitting On A Surfboard In The Water, Tarifa, Cadiz, Andalusia, Spain

A sea lion swimming under the water's surface watching a school of fish, Galapagos, equador

Shipwrecked World Discoverer cruise in tropical waters of the Solomon Islands, Roderick Bay; Nggela Islands, Solomon Islands

A Man Doing A Mediation Pose Under The Water, Benalmadena Costa, Malaga, Andalusia, Spain

A Tourist Swims Underwater With A Sea Lion At Los Islotes National Marine Park Espiritu Santo Island, La Paz Baja California Mexico

Three Girls Under The Water, Benalmadena Costa, Malaga, Andalusia, Spain

A Sea Lion In The Water At Los Islotes National Marine Park On Espiritu Santos Island Near La Paz, Baja, California, Mexico

Glass floor in a room of bora bora nui resort and spa, Bora bora island society islands french polynesia south pacific

A girl swimming under the water in a pool with goggles on, Tarifa cadiz andalusia spain

Upward underwater view from swimming pool arue resort near papeete, Tahiti nui south pacific

A pregnant woman swimming underwater, Tarifa cadiz andalusia spain