Alex Mustard / Grey seal (Halichoerus grypus) young seal opens its moutfh towards the camera, while swimming over a shallow bed of seaweeds (Fucus serratus) Lundy Island, Devon, UK. Bristol Channel. North East Altan...

Claudio Contreras / American crocodile (Crocodylus acutus)over seagrass bed, head close to camera, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico, May.

Gabriel Rojo / Underwater cameraman filming South American sea lion (Otaria flavescens) Peninsula Valdes, Patagonia Argentina

Tony Wu / Peacock / Rainbow mantis shrimp (Odontodactylus scyllarus) resting its eggs on the camera lens, Ambon, Indonesia

Olga Kamenskaya / Portrait of photographer Olga Kamenskaya with camera and diving equipment. Russia, June 2005.

Pascal Kobeh / American crocodile (Crocodylus acutus) being photographed by photographer underwater, below boat, Yucatan Peninsula, Mexico

Alex Mustard / Steller sealion (Eumetopias jubatus) male charging past the camera. Race Rocks, Victoria, Vancouver Island, British Columbia. Canada. North East Pacific Ocean.

ZSSD / East African River Hippopotamus (Hippopotamus amphibius kiboko) 5 month old calf playing underwater, San Diego Zoo, California

Tony Wu / Australian sea lion (Neophoca cinerea) playful male, pushing nose against camera, Carnac Island, Western Australia.

Cyril Ruoso / Goliath Frog (Conraua goliath) in river, endangered, Cameroon

Cyril Ruoso / Goliath Frog (Conraua goliath) in river, endangered, Cameroon

Wild Wonders of Europe / Widstrand / Underwater photographer, Magnus Lundgren, with his camera, ready to go swimming with whales, Senja, Troms County, Norway, Scandinavia, January 2015.

Scott Leslie / American Lobster (Homarus americanus) in crevice, Bonne Bay, Newfoundland, Canada

Scott Leslie / American Lobster (Homarus americanus) in defensive posture, Passamaquoddy Bay, Maine

Scott Leslie / American Lobster (Homarus americanus), Passamaquoddy Bay, Maine

Scott Leslie / Atlantic Rock Crab (Cancer irroratus), Bay of Fundy, Maine

Scott Leslie / Acadian Hermit Crab (Pagurus acadianus), Bay of Fundy, Maine

Scott Leslie / American Lobster (Homarus americanus) in defensive posture, Passamaquoddy Bay, Maine

Scott Leslie / American Lobster (Homarus americanus) in reef, Bonne Bay, Newfoundland, Canada

Scott Leslie / Arctic Lyre Crab (Hyas coarctatus) among sea anemones and Cunner (Tautogolabrus adspersus) school, Bonne Bay, Newfoundland, Canada

Franco Banfi / Tiger shark (Galeocerdo cuvier) in front of the camera, Northern Bahamas, Caribbean Sea, Atlantic Ocean

Franco Banfi / Underwater photographer Franco Banfi with camera and lighting equipment to photograph Humboldt squid (Dosidicus gigas) at night off Santa Rosalia, Sea of Cortez, Baja California, Mexico, East Pacific...

Richard Herrmann / Loggerhead Sea Turtle (Caretta caretta) at water surface, California

Franco Banfi / Underwater camera housing, Santa Maria Island, Azores, Portugal, Atlantic Ocean, August 2014.

Pete Oxford / Whale Shark (Rhincodon typus) filter feeding near tourist, Cenderawasih Bay, West Papua, Indonesia

Alex Mustard / Indo-Pacific sergeants (Abudefduf vaigiensis) swimming in mix of salt and freshwater, which is creating a haze in the water. Tulamben, Bali, Indonesia. Java Sea.

Alex Mustard / Diver swimming through Tolberone Tunnel, a triangular tunnel through the middle of an island in Raja Ampat. Giant barrel sponges (Xestospongia muta) growing on the floor of the tunnel, which have an u...

Charlie Summers / Arctic grayling (Thymallus arcticus) pair, female closer to camera, male far side with dorsal fin display, North Park, Colorado, USA, June.

Pete Oxford / Caribbean Spiny Lobster (Panulirus argus), Banco Chinchorro, Yucatan Peninsula, Mexico

Pete Oxford / Caribbean Reef Shark (Carcharhinus perezii) with tag next to research boat, Lighthouse Reef, Belize

Richard Herrmann / Northern Elephant Seal (Mirounga angustirostris) weaner in surf zone, Cedros Island, Baja California, Mexico

Hiroya Minakuchi / Bottlenose Dolphin (Tursiops truncatus) albino, Japan

Andy Jackson / 2020VISION / A group of four Arctic charr (Salvelinus alpinus) swimming mid river in the distance towards photographer Linda Pitkin kneeling in the river photographing on assignment for 2020vision, River Lisa, Enn...

Andy Jackson / 2020VISION / European lobster (Homarus gammarus) displaying claws and hiding in crevice, Lochgary Wreck, Kirkwall, Orkney, Scotland, UK, July.

Tim Fitzharris / West Indian Manatee (Trichechus manatus), Crystal River, Florida

Tim Fitzharris / West Indian Manatee (Trichechus manatus) trio, Crystal River, Florida

Tim Fitzharris / West Indian Manatee (Trichechus manatus) mother and calf, Crystal River, Florida

Tim Fitzharris / West Indian Manatee (Trichechus manatus), Crystal River, Florida

Jan Hamrsky / Spread-winged damselfly (Lestidae) nymph stalking small dragonfly nymph. Europe, July, controlled conditions. Sequence 1/2.

Luciano Candisani / Jacare Caiman (Caiman yacare) waiting for fish to swim through open mouth in wetland, Pantanal, Brazil

Luciano Candisani / Jacare Caiman (Caiman yacare) fishing, Pantanal, Brazil

Pascal Kobeh / Bottlenose dolphins (Tursiops truncatus) approaching with curiosity, Dolphin Reef, Eilat, Israel. Red Sea.

Pascal Kobeh / Cameraman filming Great white shark (Carcharodon carcharias) in open water, Guadalupe island, Mexico. Pacific Ocean. November 2006.

Pascal Kobeh / Cameraman filming a Great white shark (Carcharodon carcharias) in open water, Guadalupe island, Mexico. Pacific Ocean. November 2006.

Pascal Kobeh / Cameraman filming a Great white shark (Carcharodon carcharias) in open water, Guadalupe island, Mexico. Pacific Ocean. November 2006.

Pascal Kobeh / Underwater cameraman is filming Kelp forest (Macrocystis pyrifera), California, USA. Pacific ocean. November 2006.

Pascal Kobeh / Underwater cameraman is filming a Kelp forest (Macrocystis pyrifera), California, USA. Pacific ocean. November 2006.

Pascal Kobeh / Underwater cameraman is filming a Kelp forest (Macrocystis pyrifera), California, USA. Pacific ocean. November 2006.

Pascal Kobeh / Underwater cameraman is filming a Kelp forest (Macrocystis pyrifera), California, USA. Pacific ocean. November 2006.

Pascal Kobeh / Underwater cameraman is filming a kelp forest (Macrocystis pyrifera), California, USA. Pacific ocean. November 2006.

Pascal Kobeh / Underwater cameraman filming a kelp forest (Macrocystis pyrifera), California, USA. Pacific ocean. November 2006.

Pascal Kobeh / Divers in 'Turtle Cove' filming corpse of skeleton of turtle which got lost and couldn't get out of the cave, Koror, Palau. Philippine Sea. April 2010.

Ammonite / Female Sperm whale (Physeter macrocephalus) and calf swimming past camera at the surface before diving, Azores, Portugal, July.

Roland Seitre / West Indian Manatee (Trichechus manatus), native to western north Atlantic

Sue Daly / Atlantic Grey Seal (Halichoerus grypus) approaching camera with curiosity, The Isles of Scilly.

Bert Willaert / Titicaca water / Lake Titicaca frog (Telmatobius culeus) swimming towards camera looking into the lens, Lake Titicaca, Bolivia, October, Critically endangered.

Fred Bavendam / Whale Shark (Rhincodon typus) and snorkelers, Western Australia, Australia

Richard Herrmann / Garibaldi (Hypsypops rubicundus) in Giant Kelp (Macrocystis pyrifera) forest, Catalina Island, Channel Islands, California

Sergey Gorshkov / Photographer Sergey Gorshkov getting ready to photograph Kamchatka brown bear (Ursus arctos beringianus) underwater, Kamchatka, Far East Russia, August 2006.

Tui De Roy / Green Sea Turtle (Chelonia mydas) pair, Punta Vicente Roca, Isabela Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) mother and pup, Champion Island, Floreana Island, Galapagos Islands, Ecuador

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) sticking head underwater, Punta Vicente Roca, Isabela Island, Galapagos Islands, Ecuador

Doug Perrine / Researcher Mark Deakos using a video camera with laser spotting lights to record the identification pattern (unique pattern of spots on underside) of a Reef manta ray (Manta alfredi) Makalawena, Kona,...

Hiroya Minakuchi / Gray Whale (Eschrichtius robustus) mother and calf, San Ignacio Lagoon, Baja California, Mexico

MYN / Krista Schlyer / Largemouth bass (Micropterus salmoides) Anacostia River, Washington DC, April. Meetyourneighbours.net project

Michele Westmorland / Female scuba diver and filmmaker with large underwater camera system. Galapagos Islands, August 2010. Model released.

Michele Westmorland / Female scuba diver and filmmaker with large underwater camera system. Galapagos Islands, August 2010. Model released.

Michael Quinton / Diving Beetle (Dytiscidae) larva with mosquito larva prey, Alaska

Pete Oxford / Pacific Sardine (Sardinops sagax) baitball and snorkeler, Eastern Cape, South Africa

Jan Hamrsky / Darner dragonfly nymph (Aeshnidae) portrait, Europe, July, controlled conditions

Jan Hamrsky / Darner dragonfly nymph (Aeshnidae) portrait, Europe, July, controlled conditions

Jan Hamrsky / Darner dragonfly nymph (Aeshnidae) Europe, July, controlled conditions

Alex Mustard / A pair of blue sharks (Prionace glauca) are revealed below the surface of the sea, as a camera is dipped through the surface. Penzance, Cornwall, England, British Isles. English Channel, North East At...

Tim Fitzharris / Whale Shark (Rhincodon typus), Oslob, Cebu, Philippines

Michael Durham / Oregon Spotted Frog (Rana pretiosa) floating, Conboy Lake National Wildlife Refuge, Washington

Michael Durham / Oregon Spotted Frog (Rana pretiosa) floating, Conboy Lake National Wildlife Refuge, Washington

Franco Banfi / Woman photographing Trumpet gentian (Gentiana kochiana / acualis) Lake Sassolo, Sambuco valley, Ticino, Switzerland

Pete Oxford / African Forest Elephant (Loxodonta africana cyclotis) crossing river, Lekoli River, Democratic Republic of the Congo

Willem Kolvoort / Female South American Cichlid (Krobia guianensis), guarding her nest and eggs. Tutu creek near Aurora, defending her eggs, Suriname, September.

Claudio Contreras / Fisherman in front of his trap with catch, Batasan Island, Danajon Bank, Central Visayas, Philippines, April 2013

Michael Pitts,Michael Pitts / Presenter Mike De Gruy and Cameraman Bob Cranston on BBC filming assignment for 'Live From The Abyss' Cocos Island 2003

Cyril Ruoso / Common Frog (Rana temporaria) floating in partially ice-covered breeding pond at around 2000 meters, Alps, France

Cyril Ruoso / Oregon Spotted Frog (Rana pretiosa) floating in pond, Conboy Lake National Wildlife Refuge, Washington

Juergen Freund / Longhorn cowfish (Lactoria cornuta) Raja Ampat, West Papua, Indonesia

Norbert Wu / Leopard Flounder (Bothus pantherinus) camouflaged on ocean floor, Ambon, Indonesia

D. Parer & E. Parer-Cook / Hermit Crab (Dardanus lagopodes), Indonesia

Ingo Arndt / Olive Ridley Sea Turtle (Lepidochelys olivacea) swimming in open ocean near nesting beach, Ostional Beach, Costa Rica

Franco Banfi / Beluga whale (Delphinapterus leucas) play biting camera, Arctic circle Dive Center, White Sea, Karelia, northern Russia. Captive

Franco Banfi / Beluga whale (Delphinapterus leucas) tries to bite camera in play, Arctic circle Dive Center, White Sea, Karelia, northern Russia, captive

Franco Banfi / Underwater camera housing on sled Arctic circle Dive Center, White Sea, Karelia, Northern Russia, March 2010

Franco Banfi / Underwater camera housing and strobes in the snow close to the 'maina' the ice diving hole, with person holding rope providing contact with the divers inside. Arctic circle Dive Center, White Sea, Kar...

Franco Banfi / Underwater camera housing and strobes in snow, Arctic circle Dive Center, White Sea, Karelia, northern Russia

Franco Banfi / South American sea lion (Otaria flavescens) looking at camera, with crab, Golfo Nuevo, Peninsula Valdes UNESCO Natural World Heritage Site, Chubut, Patagonia, Argentina, Atlantic Ocean, October

Alex Mustard / Portrait of a Beaugregory fish (Stegastes leucostictus) in shallow water, East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Norbert Wu / Oceanic White-tip Shark (Carcharhinus longimanus), Bahamas, Caribbean

Norbert Wu / Blue Swimming Crab (Portunus pelagicus) pair mating, South Australia, Australia

Wild Wonders of Europe / Radisics / Oriental plane tree (Platanus orientalis) Metsovo town, Valia Calda, Pindos NP, Pindos Mountains, Greece, October 2008

Wild Wonders of Europe / Radisics / Oriental plane tree (Platanus orientalis) fruits, Meteora, Greece, October 2008

Wild Wonders of Europe / Radisics / Oriental plane tree (Platanus orientalis) trunks, Meteora, Greece, October 2008

Wild Wonders of Europe / Radisics / Oriental plane tree (Platanus orientalis) leaves, Meteora, Greece, October 2008

Wild Wonders of Europe / Radisics / Close up of bark of Oriental plane tree (Platanus orientalis) Meteora, Greece, October 2008

David Pattyn / Landscape of mountain stream flowing through very old forests in Kresna gorge. This mountain stream eventually flows into the Struma river. In these forests Oriental plane trees (Platanus orientalis)...

Nick Upton / Oriental plane tree (Platanus orientalis) with fruits, Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, July.

Wild Wonders of Europe / Radisics / Oriental plane trees (Platanus orientalis) in Plane forest, Meteora, Greece, October 2008

Wild Wonders of Europe / Radisics / Platan Plane tree forest, Oriental Plane trees (Platanus orientalis), Meteora, Greece, October 2008

Wild Wonders of Europe / Radisics / Oriental plane trees (Platanus orientalis) in Plane forest, Meteora, Greece, October 2008

Wild Wonders of Europe / Radisics / Oriental plane tree (Platanus orientalis) close up of bark peeling away, Meteora, Greece, October 2008

Jose B. Ruiz / Very old specimen of an Oriental plane tree (Platanus orientalis) in town square, Plaza de Pallá, Ibi, Alicante, Spain

Jose B. Ruiz / Large Oriental plane tree (Platanus orientalis) in town square, Biar, Alicante, Spain

Jose B. Ruiz / Oriental plane tree (Platanus orientalis) in town square, Biar, Alicante, Spain

Jose B. Ruiz / Very old specimen of an Oriental plane tree (Platanus orientalis) decorated with lights in town square, Plaza de Pallá, Ibi, Alicante, Spain

Jose B. Ruiz / Very old specimen of an Oriental plane tree (Platanus orientalis) in town square, Plaza de Pallá, Ibi, Alicante, Spain

Martin Gabriel / Montane vegetation in the Troodos Mountains: Oriental Plane (Platanus orientalis) and Black Pine (Pinus nigra), Caledonian Trail, Troodos Mountains, Cyprus

Martin Gabriel / Bark pattern of the Oriental plane (Platanus orientalis) on the Caledonian Trail, Troodos Mountains, Cyprus

Martin Gabriel / Hiking trail in the mountain forest, 'Caledonian Trail' with fallen leaves of the Oriental Plane (Platanus orientalis) on the forest floor, Troodos Mountains, Cyprus

Staffan Widstrand / Plane tree (Platanus orientalis) reflecting in water in autumn, Forest of Compiegne, Hauts-de-France, France. October.

Philippe Clement / Oriental plane (Platanus orientalis) close up of fruits and leaves in autumn. Native to Eurasia, October

Philippe Clement / Oriental plane (Platanus orientalis) close up of fruits and leaves in autumn. Native to Eurasia, October