Eduardo Blanco / Pale burrower mayfly (Ephoron virgo), swarming in the millions on street at night, appearing like snow. Mayflies recently hatched. Tudela, La Ribera de Navarra, Navarre, Spain. August 2019. Finalist i...

Pascal Kobeh / Giant clam (Tridacna) on 'Lotus' artificial reef, built in 2001 with a steel frame using mild electric currents to encourage coral growth, with diver in the background. Vabbinfaru Island in North Male...

Alex Mustard,Alex Mustard / A diver and a hydrothermal chimney. Note that he is obscured by the different temperature waters (from the chimney and the surrounding water) which are unable to mix. The sea water was 4 degrees Celsi...

Franco Banfi / Scuba diver and yellow sponges (Aplysina cavernicola) on Brioni Steamship wreck, Vis Island, Croatia, Adriatic Sea, Mediterranean. Model released.

Sue Daly / Diver on the wreck of HMNZS Canterbury, Bay of Islands, New Zealand. February 2013. Model released.

Mark Bowler / Electric eel (Electrophorus electricus), Peru

Norbert Wu / Electric Eel (Electrophorus electricus) can generate up to 220 volts, freshwater, Steinhart Aquarium, San Francisco, California

Norbert Wu / Electric Catfish (Malapterus sp) at Steinhart Aquarium, San Francisco, California, native to Africa

Georgette Douwma / Electric fileclam / Disco clam (Ctenoides ales). West Papua, Indonesia. Indo-West Pacific.

Ralph Pace / Giant Electric Ray (Narcine entemedor), Revillagigedo Islands, Mexico

David Fleetham / Commerson's frogfish (Antennarius commerson) camouflaged against coral on bow of Alma Jane wreck, diver in background. Off Sabang Beach, Puerto Galera, Mindoro, Philippines. April 2017. Model rele...

Ashley Cooper / Solar panels on the Isle of Eigg which relies exclusively on renewable energy. Scotland, UK. May 2012

Ashley Cooper / An Eigg crofter and Eigg Electric employee next to their aray of solar PV panels. Isle of Eigg, Scotland, UK. May 2012

Ashley Cooper / A portable solar mat used fro recharging a mobile phone in the Anti Atlas mountains of Morocco, North Africa. April 2012

Ashley Cooper / Solar panels on a house roof in a Berber village in the Anti Atlas mountains of Morocco, North Africa. April 2012

Ashley Cooper / A farm house on the edge of Ilkley moor that has solar panels in the field behind the farmhouse to help power the house. West Yorkshire, UK. March 2012

Ashley Cooper / Solar panels on a house roof in Ambleside in the snow, Lake District, UK. February 2012

Ashley Cooper / Solar panels on a house roof in Ambleside in the snow, Lake District, UK. February 2012

Ashley Cooper / Photoelectric cells on a council building in Barnstaple, Devon UK. June 2006

Ashley Cooper / Solar electric (photo voltaic) and solar thermal (hot water) panels on a house roof in Grasmere, Lake District, UK. August 2011

Ashley Cooper / Solar electric panels on Lowick Village Hall in South Cumbria, UK. March 2011

Ashley Cooper / Gentoo house builder's Hutton Rise housing development in Sunderland, UK. All of the houses have either solar thermal water heating or solar electric panels, some have both. December 2011

Ashley Cooper / Hutton Rise housing development in Sunderland, UK. All of the houses have either solar thermal water heating or solar electric panels, some have both. December 2011

Ashley Cooper / Hutton Rise housing development in Sunderland, UK. All of the houses have either solar thermal water heating or solar electric panels, some have both. December 2011

Ashley Cooper / The Solar office on the Doxford International Business Park, Sunderland, North East, UK. The building has many green features including 73 Kw photo voltaic panel system on the front of the building. D...

Ashley Cooper / The Brough of Birsay lighthouse marks Orkney mainland's most north westerly tip. It was built in 1925 and converted to solar power in 2002. A bank of 36 solar panels charges an array of batteries that...

Ashley Cooper / Solar voltaic panels on a house roof in Ambleside, Cumbria, UK. September 2011

Ashley Cooper / Technicians fitting solar photo voltaic panels to a house roof in Ambleside, Cumbria, UK. August 2011

Ashley Cooper / Technicians fitting solar photo voltaic panels to a house roof in Ambleside, Cumbria, UK. August 2011

Ashley Cooper / Technicians fitting solar photo voltaic panels to a house roof in Ambleside, Cumbria, UK. August 2011

Ashley Cooper / Technicians fitting solar photo voltaic panels to a house roof in Ambleside, Cumbria, UK. August 2011

Ashley Cooper / Technicians fitting solar photo voltaic panels to a house roof in Ambleside, Cumbria, UK. August 2011

Ashley Cooper / Technicians fitting solar photo voltaic panels to a house roof in Ambleside, Cumbria, UK. August 2011

Ashley Cooper / A technician fitting solar photo voltaic panels to a house roof in Ambleside, Cumbria, UK. August 2011

Ashley Cooper / Fitting wiring to a house roof in Ambleside, Cumbria, UK, to support solar photo voltaic panels. August 2011

Ashley Cooper / A techinician fitting roof brackets to a house roof in Ambleside, Cumbria, UK, to support solar photo voltaic panels. August 2011

Ashley Cooper / A techinician fitting roof brackets to a house roof in Ambleside, Cumbria, UK, to support solar photo voltaic panels. August 2011

Ashley Cooper / Dalit woman / untouchable woman in her hut, illuminated by an electric light, powered by an A4 sized solar panel, that charges a battery, and enables her to have light. Karnataka, India. December 2013

Ashley Cooper / Dalit woman / untouchable woman in her hut, illuminated by an electric light, powered by an A4 sized solar panel, that charges a battery, and enables her to have light. Karnataka, India. December 2013

Ashley Cooper / Young boy doing homework in house lit by electricity from battery. Batteries are solar charged from WWF project to supply electricity to a remote island in the Sunderbans, Ganges Delta, India. Decembe...

Ashley Cooper / A solar power station on Lemnos, Greece. September 2012

Ashley Cooper / Solar thermal panels for heating hot water with solar PV electric panels behind on a house roof in Ambleside, Lake District, UK. July 2012

David Fleetham / Undescribed species of Electric ray (Torpedo sp) can put out as much as 220 volts if disturbed, found only in Horseshoe Bay, off the island of Rinca in the Komodo National Park, Indonesia.

Sue Daly / Eye of undulate ray (Raja undulata) Jersey, British Channel Islands, June.

Sue Daly / Marbled electric ray (Torpedo marmorata) Les Ecrehous, Jersey, British Channel Islands, June.

Sue Daly / Small-eyed ray (Raja microocellata) swimming away, Sark, British Channel Islands, UK, July.

Sue Daly / Small-eyed ray (Raja microocellata) swimming away, Sark, British Channel Islands, UK, July.

Sue Daly / Close-up of the eyes of an Undulate ray (Raja undulata), Sark, British Channel Islands, UK, June.

Sue Daly / Undulate ray (Raja undulata) swimming over and then resting on the seabed, Sark, British Channel Islands, UK, June.

Sue Daly / Close-up of the eye of an Undulate ray (Raja undulata), Sark, British Channel Islands, UK, June.

Doug Perrine / Reef manta ray (Manta alfredi) feeding on plankton attracted by light at night, among schooling Hawaiian flagtail (Kuhlia xenura) akako Bay, Keahole, Kona, Hawaii. August.

SCOTLAND: The Big Picture / Thornback ray (Raja clavata) in a Special Area of Conservation, Loch Creran, Argyll and Bute, Scotland, UK, December.

Tony Wu / Yellow elephant ear sponge (Ianthella basta) with unique lighting to make it resemble a sculpture, Hornbill Channel in Milne Bay, Papua New Guinea.

Franco Banfi / Electrode providing current to the structure of bio-rock, method of enhancing the growth of corals and aquatic organisms, metal covering a wooden boat wreck, Desa Pemuteran, Bali Island, Indonesia, Pa...

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...

Pascal Kobeh / Diver exploring 'Barnacle' artificial reef, built in 2001 with a steel frame using mild electric currents to encourage coral growth. Shape is built as habitat for fish. Ihuru Island in North Male Atol...

Pascal Kobeh / 'Lotus' artificial reef, built in 2001 with a steel frame using mild electric currents to encourage coral growth. Vabbinfaru Island in North Male Atoll, Maldives, Indian Ocean. September 2005.

Pascal Kobeh / Diver exploring 'Lotus' artificial reef, built in 2001 with a steel frame using mild electric currents to encourage coral growth. Vabbinfaru Island in North Male Atoll, Maldives, Indian Ocean. Septemb...

Pascal Kobeh / Diver exploring 'Barnacle' artificial reef, built in 2001 with a steel frame using mild electric currents to encourage coral growth. Shape is built as habitat for fish. Ihuru Island in North Male Atol...

Pascal Kobeh / Diver exploring 'Barnacle' artificial reef, built in 2001 with a steel frame using mild electric currents to encourage coral growth. Shape is built as habitat for fish. Ihuru Island in North Male Atol...

Pascal Kobeh / Split level view of 'Barnacle' artificial reef with scuba diver. Built in 1997 with a steel frame using mild electric currents to encourage coral growth. Ihuru Island in North Male Atoll, Maldives,...

Pascal Kobeh / Diver exploring 'Lotus' artificial reef, built in 2001 with a steel frame using mild electric currents to encourage coral growth. Vabbinfaru Island in North Male Atoll, Maldives, Indian Ocean. Septemb...

Pascal Kobeh / Black-spotted torpedo ray (Torpedo fuscomaculata) laying on sand, coast of Dhofar and Hallaniyat islands, Oman. Arabian Sea.

Pascal Kobeh / Black-spotted torpedo ray (Torpedo fuscomaculata) laying on sand, coast of Dhofar and Hallaniyat islands, Oman. Arabian Sea.

Olga Kamenskaya / Diver exploring Lake Baikal, Russia, December 2009.

Sue Daly / Small-eyed Ray (Raja microocellata) on sea floor, Bouley Bay, Jersey, British Channel Islands.

Sue Daly / Undulate Ray (Raja undulata) Bouley Bay, Jersey, British Channel Islands.

Sue Daly / Marbled electric ray (Torpedo marmorata) Bouley Bay, Jersey, British Channel Islands.

Sue Daly / Marbled electric ray (Torpedo marmorata) Bouley Bay, Jersey, British Channel Islands.

Fred Bavendam / Electric Ray (Narcine sp), Bali, Indonesia

Michael Pitts / British Admiralty anchor mid 1750's - possibly from the wreck of HMS Colossus, wrecked 1798. St Mary's Roads, Isles of Scilly, England, UK, August 2013.

Michael Pitts / Maritime archaeologist with a 18lb cannon from the wreck of a British warship HMS Colossus, wrecked 1798. St Mary's Roads, Isles of Scilly, UK, August 2013.

Michael Pitts / Maritime archaeologist on the wreck of the 1st rate man-of-war, HMS Invincible wrecked in 1758. Eastern Solent Channel. England, UK, May 2013. No release available.

Franco Banfi / Giant electric rays (Narcine entemedor) San Benedicto, Revillagigedo (Socorro) Islands, Mexico, East Pacific Ocean

Franco Banfi / Giant electric ray (Narcine entemedor) San Benedicto, Revillagigedo / Socorro Islands, Mexico, East Pacific Ocean

Franco Banfi / Giant electric ray (Narcine entemedor) San Benedicto, Revillagigedo / Socorro Islands, Mexico, East Pacific Ocean

Richard Herrmann / Electric Ray (Torpedo californica), one hundred miles offshore from San Diego, Cortes Bank, California

Alex Mustard / Torpedo ray / Electric ray (Narcine sp) rests on the sand at night, Nusa Kode, Rinca Island, Komodo National Park, Horseshoe Bay, Sawu Sea, Indonesia.

Alex Mustard / Torpedo ray / Electric ray (Narcine sp) rests on the sand at night, Nusa Kode, Rinca Island, Komodo National Park, Horseshoe Bay, Sawu Sea, Indonesia.

Barry Mansell / Red electric flame scallop / Rough fileclam (Lima scabra) Indo Pacific

Norbert Wu / Giant Electric Ray (Narcine entemedor) hiding in sand, Revillagigedos Islands, Mexico

Sue Daly / Electric Ray (Torpedo marmorata). Channel Islands, UK, August.

Jeff Rotman / Electric / Torpedo ray (Torpedo panthera) resting on seabed, observed by diver, New England coast, USA Model released.

Alex Mustard / A Panther Electric Ray (Torpedo panthera) has buried itself in the sand. Nuwieba, Sinai, Egypt. Red Sea. January

Alex Mustard / An Electric Ray (Torpedo panthera) swimming around a shipwreck (Gubal Island barge) at dusk. Gubal Island, Strait of Gubal, Egypt. Red Sea

Georgette Douwma / Electric ray / Numbfish (Narcine sp.) on sandy seabed, active at night, The electric organs of narcinids can produce up to 37 volts. Rinca, Komodo National Park, Indonesia.

Georgette Douwma / Electric ray / Numbfish (Narcine sp.) partially buried on sandy seabed, active at night, The electric organs of narcinids can produce up to 37 volts. Rinca, Komodo National Park, Indonesia.

Georgette Douwma / Electric ray / Numbfish (Narcine sp.) on sandy seabed, active at night. The electric organs of narcinids can produce up to 37 volts. Rinca, Komodo National Park, Indonesia.

Sue Daly / Marbled electric ray (Torpedo mamorata) on seabed, Channel Isles, UK, June

Jeff Rotman / Pacific electric / Round torpedo ray (Torpedo californica) diving into the canopy of the kelp forest, Pacific Ocean, California, USA

Fred Bavendam / Torpedo Ray (Torpedo sp), an electric ray on ocean floor, Komodo Island, Indonesia

Fred Bavendam / Coffin Ray (Hypnos monopterygium), an electric ray on ocean floor, Edithburgh, Australia

Jane Burton / Electric blue damselfish {Pomacentrus caeruleus} and three Cleaner shrimps {Hippolysmata grabhami} captive,

Jane Burton / South American electric knifefish {Sternarchus albifrons}, captive, from Surinam and Amazon basin

Jane Burton / Elephant-trunk fish {Gnathonemus petersi} captive, from rivers of West africa, a species with electric organs

Jane Burton / Electric blue damselfish {Pomacentrus caeruleus} with mouth open, captive, from Pacific