Linda Pitkin / 2020VISION / Split level view of the River Itchen, with aquatic plants: Blunt-fruited Water-starwort (Callitriche obtusangula). Itchen Stoke Mill is visible on the left. Ovington, Hampshire, England, May.

Bertie Gregory / 2020VISION / Avocet (Recurvirostra avosetta) silhouetted as its feeds at sunrise, Brownsea Island, Dorset, winter.

Onne van der Wal / Split level view of 30ft Tiki catamaran "Abaco" aground in the shallows. Exumas, Bahamas, Caribbean. June 2009, property released.

Alex Mustard / A split level view of shallow water and clouds in summer, Seven Mile Beach, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Laurie Campbell / Brown trout (Salmo trutta) resting on river bed near the Aigas Field Studies Centre, Inverness-shire, Scotland, July

Graham Eaton / A low angle view of a waterfall, from within a mountain stream, Ogwen Cottage, Snowdonia NP, Gwynedd, Wales, UK, February

Graham Eaton / A split-level image of a mountain stream, in autumn, with water droplets on lens, Nant Ffrancon Valley, Snowdonia NP, Gwynedd, Wales, UK, October

Graham Eaton / A split-level view through a small waterfall, Llanberis, Snowdonia NP, Gwynedd, Wales, UK, July

Graham Eaton / Split level shot of Llyn Idwal and Cwm Idwal, showing freshwater habitat with Green lacustrine algae (Chlorophyceae sp.), Snowdonia NP, Gwynedd, Wales, UK, August

Todd Mintz / Sockeye salmon (Oncorhynchus nerka) split level view of annual spawning run, Adams River, British Columbia, Canada, October

Todd Mintz / Sockeye salmon (Oncorhynchus nerka) split level view of annual spawning run, Adams River, British Columbia, Canada, October

Todd Mintz / Lemon shark (Negaprion brevirostris) at surface, Bahamas, Caribbean

Ole Jorgen Liodden / Galapagos Sea Lion (Zalophus wolllebaeki) under the surface. Galapagos

Nuno Sa / Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.

Nuno Sa / Blue Sharks (Prionace glauca) at the sea surface. Santa Maria, Azores, August.

Jan Hamrsky / Mosquito (Culex pipiens) adult emerging through water surface from larva. Europe, August.

Mark Carwardine / Grey Whale (Eschrichtius robustus) calf at the water surface being petted by a tourist. San Ignacio Lagoon, Baja California, Mexico, April.

Andrew Parkinson / Mallard (Anas platyrhynchos) line of ducklings follow their mother through early morning mist, Derbyshire, UK, June.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) low angle perspective of open bills, Lake Kerkini, Greece, February. Highly Commended, 2011 Wildlife Photographer of the Year competition.

Graham Eaton / Split level image of Cwm Idwal and Llyn Idwal showing lake and mountain habitat and lacustrine algae, Snowdonia NP, North Wales, UK, January 2010. Winner of the Living Landscape: Connectivity categor...

Juergen Freund / Green turtles (Chelonia mydas) mating over coral reef, Sipadan Island, Sabah, Malaysia, June, Endangered species

Juergen Freund / Schooling Silverside fish (Antherinidae) split level with karst limestone walls, West Papuan fisherman in boat, North Raja Ampat, West Papua, Indonesia, February 2002.

Juergen Freund / Schooling Silverside fish (Antherinidae) split level with karst limestone walls, fan coral and featherstar, North Raja Ampat, West Papua, Indonesia, February 2002.

Juergen Freund / Split level image of Papuan fisherman standing on his dugout canoe over shallow corals, New Ireland, Papua New Guinea, June 2010

Juergen Freund / Split level image of shallow bleaching corals at sunset, New Ireland, Papua New Guinea

Juergen Freund / Split level of solar powered gauge measuring sea temperature, West New Britain, Papua New Guinea, May 2010

Juergen Freund / Split level of snorkeler over coral reef on white sandy seabed contrasting with dry topside landscape in background, Komodo NP, Indonesia, August 2009. Model released.

Juergen Freund / Fisherman on outrigger boat catching Yellowfin tuna with hook and line. Sulawesi, Indonesia, December 2009. Fishermen fish close to a fish attracting device, some remain at sea for up to 2 months.

Juergen Freund / Split-level shot of coral reef and island with snorkeller swimming underwater. Misool, Raja Ampat, West Papua, Indonesia, January 2010. Model released.

Juergen Freund / Split-level shot of coral reef and island. Misool, Raja Ampat, West Papua, Indonesia, January 2010

Juergen Freund / Soft coral (Alcyonacea) in the shallow mangroves with diver, split level. North Raja Ampat, West Papua, Indonesia, February 2010

Juergen Freund / Local fishermen capturing a sea turtle for food, Kei islands, Moluccas, Indonesia, November 2009

Juergen Freund / Split-level shot of a shallow coral reef and house on stilts. North Raja Ampat, West Papua, Indonesia, February 2010

Juergen Freund / Split-level shot of Black tip reef shark (Carcharhinus melanopterus) patrolling the shallows. Misool, Raja Ampat, West Papua, Indonesia, January 2010

Juergen Freund / Papuan boy swimming in the shallows with his pet baby hawksbill turtle (Eretmochelys imbricata). Tunnung Island, New Hanover, Papua New Guinea, June 2010

Juergen Freund / Floating fruit of a Cannonball mangrove (Xylocarpus granatum) which when opened has seeds like a natural puzzle. Lembeh Strait, North Sulawesi, Indonesia, September 2009

Juergen Freund / Baby green turtle (Chelonia mydas) hatchling in the shallows of the beach, swimming out to sea. Anano Island, Wakatobi, South Sulawesi, Indonesia, November

Juergen Freund / Snorkeler swims amongst Sergeant major damselfish (Abudefduf vaigiensis) at the house reef of Miniloc Island Resort, El Nido Island, Palawan, Philippines, May 2009. These fish gather in a dense mass w...

Juergen Freund / Snorkeler swimming underwater, split level, with Miniloc Island Resort in the background, El Nido, Palawan, Philippines, May 2009. Model released

Juergen Freund / Sergeant major damselfish (Abudefduf vaigiensis) at the house reef of Miniloc Island Resort, El Nido Island, Palawan, Philippines, May 2009. These fish gather in a dense mass when bread is thrown into...

Juergen Freund / Diver lowering an artificial reef made of ceramic snowflakes to help rejuvenate the dead reef of El Nido. The 1998 El Nino caused a massive scale coral bleaching to this tourist town that used to have...

Juergen Freund / Split level of shallow bleaching corals and island, New Ireland, Papua New Guinea, June 2010

Juergen Freund / Outrigger boats catch Yellowfin tuna fishing with hook and line. Catching a Yellowfin tuna, these fishermen fish near a fish attracting device (FAD) or rumpon, attached to a raft or rakit some 100 km...

Juergen Freund / Split-level shot of Leatherback sea turtle (Dermochelys coriacea) baby swimming in the sea near the beach. Warmamedi beach, Bird's Head Peninsula, West Papua, Indonesia, July 2009

Juergen Freund / Split-level shot of Leatherback sea turtle (Dermochelys coriacea) with West Papuan boy in the water. Warmamedi beach, Bird's Head Peninsula, West Papua, Indonesia, July 2009

Juergen Freund / Split-level shot of Green turtle (Chelonia mydas) in the reef shallows, swimming towards the camera. Sipadan Island, Sabah, Malaysia, June

Juergen Freund / Split-level shot of Fan coral (Gorgonacea) in the shallows with boat shilouetted against the sunset in the background. North Raja Ampat, West Papua, Indonesia, February 2010

Juergen Freund / Split-level shot of a shallow coral reef and mangroves with local West Papuan man in a dugout canoe. North Raja Ampat, West Papua, Indonesia, February 2010

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective showing crab beneath and fluvial habitat. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective showing crab beneath and fluvial habitat. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective of underwater and habitat. Foreste Casentinesi National Park, Italy, July.

Sergey Gorshkov / Sockeye Salmon (Salmonidae) spawning in Lake Kuril, Kamchatka, Far East Russia, August

Tim Laman / Galapagos penguin (Spheniscus mendiculus) swimming off the coast of Bartolomew Island, Galapagos, Endangered species

Solvin Zankl / Lars Hendrickson watching Black piston water beetles (Hydrophilus aterrimus) feeding on a tadpole, State Collection in Munich, Germany, June

Alex Mustard / A split level view of a bull California sealion (Zalophus californianus) swimming beneath Los Islotes sealion colony. La Paz, Mexico. Sea of Cortez, East Pacific Ocean.

Alex Mustard / Portrait of a domestic pig (Sus domestica) sitting in the sea. Exuma Cays, Bahamas. Tropical West Atlantic Ocean. This family of pigs live on this beach in the Bahamas and enjoy swimming in the sea.

Alex Mustard / Split level view of a domestic pig (Sus domestica) bathing in the sea. Exuma Cays, Bahamas. Tropical West Atlantic Ocean. This family of pigs live on this beach in the Bahamas and enjoy swimming in t...

Alex Mustard / split level view of a domestic pig (Sus domestica) bathing in the sea. Exuma Cays, Bahamas. Tropical West Atlantic Ocean. This family of pigs live on this beach in the Bahamas and enjoy swimming in t...

Andrew Parkinson / Pair of Great Crested Grebes (Podiceps cristatus) during their elaborate courtship dance. March. Derbyshire, UK, March (non-ex)

Andrew Parkinson / Great skua (Stercorarius skua) bathing in a freshwater pool. Shetland Islands, Scotland, UK, June. (non-ex)

Kevin Schafer / Split level view of Amazon River Dolphin / Boto (Inia geoffrensis) in flooded forest, Ariau River, tributary of Rio Negro, Amazonia, Brazil, July

Alex Mustard / A group of Florida manatees (Trichechus manatus latirostrus) sleeping in the afternoon at Three Sisters Spring. Crystal River, Florida, USA. Manatees sleep on the bottom of the spring, floating up per...

Alex Mustard / A split level digital composite showing a Basking shark (Ceterhinus maximus) feeding on plankton around St Michael's Mount, Cornwall, UK. June

Alex Mustard / Spilt level view of a large female Southern Stingray (Hypanus americanus) beneath boat, Grand Cayman, Cayman Islands. British West Indies. Caribbean. March

Alex Mustard / Atlantic grey seal (Halichoerus grypus) swimming beneath the surface, Lundy Island, Devon, England, UK. July 2010. Highly commended, Coast and Marine category, British Wildlife Photography Awards (BWP...

Alex Mustard / Atlantic grey seal (Halichoerus grypus) swimming beneath the surface, Lundy Island, Devon, England, UK. July 2010

Alex Mustard / Atlantic grey seal (Halichoerus grypus) resting vertical beneath the surface, Lundy Island, Devon, UK. July

Alex Mustard / Lemon shark (Negaprion brevirostris) in shallow water at the surface, split level. Little Bahama Bank, Bahamas. West Atlantic Ocean.

Alex Mustard / Bottlenose dolphin (Tursiops truncatus) in shallow water over a sand bank. Sandy Ridge, Little Bahama Bank, Bahamas. Tropical West Atlantic

Alex Mustard / Split level image of Caribbean reef shark (Carcharhinus perezi) breaking surface at dusk. Grand Bahama, Bahamas. Digitally manipulated image.

Alex Mustard / Split level of female California sea lions (Zalophus californianus) basking in the sun on the surface. La Paz, Baja California Mexico. Sea of Cortez, East Pacific Ocean. October

Alex Mustard / Bottlenose dolphin (Tursiops truncatus) with surface reflection, in shallow water over a sand bank. Sandy Ridge, Little Bahama Bank, Bahamas. Tropical West Atlantic

Fabio Liverani / Crested Newt (Triturus cristatus carnifex) split level view of female swimming near surface, Traversari lake, Campigna National Park, Emilia Romagna and Tuscany regions, Italy

Graham Eaton / Split-level image of Seaweed growth on a groyne, Abersoch, Wales, April 2010

Michele Westmorland / Split level view of scuba diver with PR Aquanauts boat in Grenada, Caribbean. May 2009. Property released and diver model released.

Tim Laman / Iceberg showing wave erosion, Antarctica, January

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) expelling air and water from mouth through baleen plates after engulfing part of a baitball of Sardines, Sardinops sagax, off Baja California, Mexico (Easte...

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) feeding on baitball of Sardines (Sardinops sagax) off Baja California, Mexico, Eastern Pacific Ocean. 4 in sequence of 5

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) feeding on baitball of Sardines (Sardinops sagax) off Baja California, Mexico, Eastern Pacific Ocean. 3 in sequence of 5

Doug Perrine / Salmon shark (Lamna ditropis) female with mating scars and copepod parasites trailing from fins, Port Fidalgo, Prince William Sound, Alaska, USA. Digital composite

Onne van der Wal / Shoal of fish beneath nets and small fishing boats in the Grenadines, Caribbean, February 2010.

Jack Dykinga / Cenote Samula (sink hole) with elongated roots of a Fig tree (Ficus sp) from ground level descending to the subterranian tourquoise coloured water below. Rays of sulight pass through the hole to illum...

Stephen Dalton / Leopard frog (Rana pipiens) diving into water, controlled conditions

Juergen Freund / Richard Fitzpatrick releases Grey reef shark {Carcharhinus amblyrhynchos} after inserting transmitter into its belly, as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Charlotte Watson snorkels down to collect sand which may contain polychaete worms, Coral Reef census, Lizard Island, Queensland, Australia, April 2008. Model released

Stephen Dalton / Leopard frog {Rana pipiens} diving into water, controlled conditions, from USA

Stephen Dalton / Common frog {Rana temporaria} diving into water, controlled conditions, UK

Sue Flood / Humpback whale (Megaptera novaeangliae) calf just below the surface, Vava'u, Kingdom of Tonga, South Pacific, August

Sue Flood / Humpback whale (Megaptera novaeangliae) mother and calf, Kingdom of Tonga, South Pacific, September Not available for ringtone/wallpaper use.

Doug Allan / Humpback whale (Megaptera novaeangliae) swimming below a whale watching boat, Sue Flood, photographer in boat, Vava'u, Kingdom of Tonga, South Pacific, September 2006, Model released

Stephen Dalton / Archerfish {Toxotes sp} firing jet of water from mouth to dislodge insect prey, controlled conditions, from Asia and Australia

Chadden Hunter / Dallol hot springs where water heated by magma laden with potassium, sulphur and iron spews up through salt pans staining the salt deposits with vivid colours, in the bottom of the Rift Valley, 120 me...

Graham Eaton / Herring Gull (Larus argentatus) feeding on sandeel, underwater shot, Cardigan Bay, Wales, UK, June

Doug Allan / Emperor penguins {Aptenodytes forsteri} diving, Cape Washington, Antarctica. Freeze Frame book plate page 133.

Juergen Freund / Saltwater crocodile (Crocodylus porosus) swimming at water surface, split-level, New Guinea, Indo-pacific

Anup Shah / Low level view of Lesser flamingos taking off (Phoeniconaias minor) Lake Nakuru National Park, Kenya. July 2007.