Hippo (Hippopotamus amphibius), submerged, Kruger National Park, South Africa, Africa

Partially submerged tree in Loch Maree on a stormy day, near Poolewe, Achnasheen, Wester Ross, Highlands, Scotland, United Kingdom, Europe

Close up of an hippopotamus (Hippopotamus amphibius) submerged in Lake Gipe and looking at the camera, Tsavo, Kenya, East Africa, Africa

Submerged Shiva temple, Sindhia Ghat, Varanasi, Uttar Pradesh, India, Asia

Alps in winter, Alpe Devero, Piedmont Region, Italy, Europe

Close up of an hippopotamus (Hippopotamus amphibius) submerged in Lake Gipe and looking at the camera, Tsavo, Kenya, East Africa, Africa

Submerged Shiva temple, Sindhia Ghat, Varanasi, Uttar Pradesh, India, Asia

Alps in winter, Alpe Devero, Piedmont Region, Italy, Europe

A starry night covering the Spluga huts submerged in snow near the Maloja Pass, Graubunden, Swiss Alps, Switzerland, Europe

Close up of hippos (Hippopotamus amphibius) submerged in Lake Gipe, Tsavo, Kenya, East Africa, Africa

Submerged Shiva temple, Sindhia Ghat, Varanasi, Uttar Pradesh, India, Asia

African Elephant (Loxodonta africana), Kruger National Park, South Africa, Africa

Hippopotamus (Hippopotamus amphibius), Kruger National Park, South Africa, Africa

Hippopotamus (Hippopotamus amphibius), Khwai Concession Area, Okavango Delta, Botswana, Africa

Hippopotamus (Hippopotamus amphibius), Busanga Plains, Kafue National Park, Zambia, Africa

Hippopotamus (Hippopotamus amphibius), Okavango delta, Botswana, Africa

Extreme high tide covers trees in the Hunter River, Kimberley, Western Australia, Australia, Pacific

Kamchatka brown bear (Ursus arctos beringianus) eating salmon, Kurile Lake, Kamchatka, Russia, Eurasia

Tree submerged in Loch Lomond at sunset, Scotland, United Kingdom, Europe

Kamchatka brown bear (Ursus arctos beringianus), Kurile Lake, Kamchatka, Russia, Eurasia

Hippopotamus (Hippopotamus amphibius), Masai Mara, Kenya, East Africa, Africa

The old stone causeway leading to St. Michaels Mount submerged by the incoming tide cutting it off from Marazion, Cornwall, England, United Kingdom, Europe

Aerial view of hippopotamuses (Hippopotamus amphibius), Okavango Delta, Botswana, Africa

Limnos (Lemnos), Aegean islands, Greek Islands, Greece, Europe

Submerged causeway at high tide, seen over rooftops of Marazion, St. Michael's Mount, Cornwall, England, United Kingdom, Europe

Alligator in river water, Everglades, Florida, United States of America

Outdoor tables and chairs of The Swan Hotel submerged in flood water, Minster Lovell, Oxfordshire, United Kingdom

Herd of Blue Wildebeest eating water cabbage, Grumeti, Tanzania

Herd of migrating Blue Wildebeest drinking, Grumeti, Tanzania

Young Thomsons Gazelle stuck in the mud of a drying river bed, Grumeti area, Tanzania

Young Thomsons Gazelle stuck in the mud of a drying river bed, Grumeti area, Tanzania

West Indian manatee (Trichechus manatus), underwater with snorkeler, Homosassa Springs, Florida, United States of America, North America

West Indian manatee (Trichechus manatus), underwater with snorkeler, Homosassa Springs, Florida, United States of America, North America

Herd of migrating Blue Wildebeest drinking, Grumeti, Tanzania

A young child washing in a river in the Philippines

Herd of migrating Blue Wildebeest drinking, Grumeti, Tanzania

Herd of migrating Blue Wildebeest 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

The old road revealed by drought in Loch Glascarnoch near Ullapool, Scotland, United Kingdom, Europe

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.

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

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

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

Adult harbor seals (Phoca vitulina) hauled out and resting on a semi-submerged log in punchbowl inside Misty Fiords National Monument, Southeast Alaska, USA

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

Adult harbor seals (Phoca vitulina) hauled out and resting on a semi-submerged log in punchbowl inside Misty Fiords National Monument, Southeast Alaska, USA

Diving british ship wrecks in the English Channel

Competitor in the Annual World Bog Snorkelling Championships

Competitor in the Annual World Bog Snorkelling Championships

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

Diving british ship wrecks in the English Channel

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

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)

Adult harbor seals (Phoca vitulina) hauled out and resting on a semi-submerged log in punchbowl inside Misty Fiords National Monument, Southeast Alaska, USA

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

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

Competitor in the Annual World Bog Snorkelling Championships

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

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

Competitor in the Annual World Bog Snorkelling Championships

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

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

The old road revealed by drought in Loch Glascarnoch near Ullapool, Scotland, United Kingdom, Europe

An adult leopard seal (Hydrurga leptonyx) among the icebergs at Cierva Point on the Danco Coast, Antarctica

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.

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.

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

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

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.

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

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.

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.

Flash Floods in Bangladesh.

Flash Floods in Bangladesh.

Flash Floods in Bangladesh.

Flash Floods in Bangladesh.