Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...

Alex Mustard / Flamingo tongue (Cyphoma gibbosum) feeding on a seafan (Gorgonia ventalina) Cyphomas feed on corals and concentrate the toxic chemicals into their mantle, which they then wrap around the outside of it...

Linda Pitkin / 2020VISION / Common Lobster (Homarus gammarus), St Abbs (St Abbs and Eyemouth Voluntary Marine Reserve), Berwickshire, Scotland, UK, October 2011. 2020VISION Book Plate. Did you know? Crustaceans have blue blood,...

Alex Mustard / 2020VISION / View up through tidepool of 2020Vision young photographer, Bertie Gregory, Falmouth, Cornwall, UK, July 2011. Model released. Did you know? Life isnt easy in a rock pool! Animals here must deal with c...

Doug Wechsler / Spotted salamander eggs {Ambystoma maculatum} with symbiotic algae, Delaware, USA

Ashley Cooper / Blue Green algae on the shores of Lake Windermere, Ambleside, Lake District, UK. Blue Green algae is toxic and is becoming far more frequent as temperatures rise due to climate change. June 2014

Jan Hamrsky / Hoverfly larva (Syrphidae), using its breathing siphon to reach atmospheric oxygen, Europe, November, controlled conditions

Jan Hamrsky / Hoverfly larva (Syrphidae), using its breathing siphon to reach atmospheric oxygen, Europe, November, controlled conditions

Jan Hamrsky / Hoverfly larva (Syrphidae), using its breathing siphon to reach atmospheric oxygen, Europe, November, controlled conditions

Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...

Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...

Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) washed up on shore, producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mati...

Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) washed up on shore, producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mati...

Solvin Zankl / Bioluminescent Sea-firefliy (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or prey de...

Terry Whittaker / Trees providing shade for bus passengers, Elephant and Castle, London UK

Albert Lleal / Common Sea Urchin (Paracentrotus lividus) in fast moving water showing spines and tube feet, the water penetrates the urchin and provides oxygen, Catalonia, Spain

Albert Lleal / Common Sea Urchin (Paracentrotus lividus) in fast moving water showing spines and tube feet, the water penetrates the urchin and provides oxygen, Catalonia, Spain

Solvin Zankl / Mosquito (Ochlerotatus japonicus) pupa breathing atmospheric oxygen at surface. The left one is about to moult as indicated by the silvery shine. Invasive Species, Freiburg, Germany

Solvin Zankl / Mosquito (Ochlerotatus japonicus) pupa breathing atmospheric oxygen at surface. Invasive Species, Freiburg, Germany, August.

Solvin Zankl / Mosquito (Culex pipiens) larvae breathing atmospheric oxygen at water surface. They just hatched and it is the first time they fill there spiracle with air. Kiel, Germany. Sequence 4/4.

Cyril Ruoso / Man with laptop computer on 48m high tower used to collect data about the CO2 and O2 levels. Tropical rainforest, Barro Colorado Island, Gatun Lake, Panama Canal, Panama. November 2012.

Cyril Ruoso / A high 48m tower used to collected data about the CO2 and O2 levels. Tropical rainforest, Barro Colorado Island, Gatun Lake, Panama Canal, Panama.

Alex Mustard / Red Sea anemonefish (Amphiprion bicinctus) fans oxygen rich water over its clutch of eggs with its pectoral fin. The eggs are close to hatching and laid next to the red skirt of a magnificent sea anem...

Jan Hamrsky / Mosquito (Anopheles sp) pupa breathing atmospheric oxygen at surface, Europe, January, controlled conditions.

Willem Kolvoort / Algae producing oxygen, which caught on hairs of algae pull the algae towards the surfaces, in small lake, Holland. August.

Willem Kolvoort / Common Reed (Phragmatites australis) with algae on the stems producing oxygen bubbles, lake in central Holland. May.

Willem Kolvoort / Common Reed (Phragmatites australis) with algae on the stems producing oxygen bubbles, lake in central Holland. May.

Nick Upton / Anaesthetised young male Pygmy goat (Capra aegagrus hircus) being given oxygen in an operating room before castration operation, Wiltshire, UK, September 2014. Model released.

Nick Upton / Mat of Green freshwater algae blooming on a damp draincover, releasing oxygen bubbles through photosynthesis, Wiltshire, UK, May.

Charlie Summers / Male Elk (Cervus canadensis), with antlers covered in velvet, a vascular skin that supplies oxygen and nutrients to the growing bone, Colorado, USA, June.

Pascal Tordeux / Vertical filters in a biogas plant used to separate methane from carbon dioxide, water and oxygen, Spain January 2013

Jan Hamrsky / Water scorpion (Nepa cinerea) waiting for prey underwater while breathing atmospheric oxygen using its siphon, Europe, May, controlled conditions

Jan Hamrsky / Water scorpion (Nepa cinerea) waiting for prey underwater while breathing atmospheric oxygen using its siphon, Europe, May, controlled conditions

Jan Hamrsky / Water scorpion (Nepa cinerea) waiting for prey underwater while breathing atmospheric oxygen using its siphon, Europe, May, controlled conditions

Solvin Zankl / GEOMAR / Coral (Madrepora oculata) in respiration chambers where scientists determine oxygen consumption using optical sensors, Norway, September 2011. Photo taken in cooperation with GEOMAR coldwater coral r...

Alex Mustard / Cushion sea star (Oreaster reticulatus) high magnification detail of the skin gills used to absorb oxygen from the water between the red knobbly spines, East End, Grand Cayman, Cayman Islands, British...

Rolf Nussbaumer / Black vulture (Coragyps atratus) group of adults eating thousands of dead fish floating on lake, Dinero, Lake Corpus Christi, South Texas, USA. Fish died as result of drought and lack of oxygen

Doug Perrine / close up of gills of Reef manta ray (Manta alfredi formerly Manta birostris) feeding, with open gill slits showing gill plates through which plankton is filtered (and which also draw oxygen from the w...

Jeff Rotman / Gills of Whitetip Reef shark (Triaenodon obesus) Cocos Island, Costa Rica, Pacific Ocean.

Doug Allan / Climbers trying out their oxygen equipment at Advanced Base Camp (6,400m) on Mount Everest, Tibet, May 2006

Dan Burton / Oxygen cylinders for divers ice diving under ice in the White Sea, Northern Russia

Albert Lleal / Midge (Chironomidae) able to survive in low oxygen environments, Spain

Leo & Mandy Dickinson / Reinhold Messner after Everest ascent without oxygen, 1978

Doug Allan / Doug Allan, cameraman, filming for BBC 'Andes to Amazon' wearing oxygen mask for filming aerials out of the open door of Cessna plane at 6500m, Bolivia, 1997

Willem Kolvoort / Freshwater algae of the Periphyton producing oxygen bubbles that ascend to the pond surface. Lake Naarden, Holland

Willem Kolvoort / Underwater (Algae) meadow, little peatbog lake, Holland. The Algae produce oxygen but the bubbles cannot escape from the hairy mass of the algae and pull the algae bed upwards, causing the strange al...

Willem Kolvoort / Common European toad egg strings (Bufo bufo) hanging in the waterplants (here Stonewort) in order to get sufficient oxygen, sand-winning pit, Holland

Willem Kolvoort / Underwater view of Algae with oxygen bubbles they produce, Lake Naarden, Holland

Willem Kolvoort / Oxygen bubbles on strand of submerged reed, sand-winning pit, Holland

Willem Kolvoort / Underwater (Algae) meadow, little peatbog lake, Holland. The Algae produce oxygen but the bubbles cannot escape from the hairy mass of the algae and pull the algae bed upwards, causing the strange al...

Willem Kolvoort / Sunlight above underwater (Algae) meadow, sand winning pit, Holland. The Algae produce oxygen but the bubbles cannot escape from the hairy mass of the algae and pull the algae bed upwards, causing th...

Willem Kolvoort / Common European toad egg strings (Bufo bufo) hanging in the waterplants in order to get sufficient oxygen, sand-winning pit, Holland

Willem Kolvoort / Egg strings of Common european toad (Bufo bufo) strung along aquatic plants for good oxygen exchange, sand winning pit, Holland

Willem Kolvoort / Oxygen bubbles on strand of algae on submerged branch, sand-winning pit, Holland

Willem Kolvoort / Underwater (Algae) meadow, sand winning pit, Holland. The Algae produce oxygen but the bubbles cannot escape from the hairy mass of the algae and pull the algae bed upwards, causing the strange float...

Willem Kolvoort / Underwater Stonewort covered with (Algae) and oxygen bubbles, little peatbog lake, Holland.

Willem Kolvoort / Underwater (Algae) meadow, little peatbog lake, Holland. The Algae produce oxygen but the bubbles cannot escape from the hairy mass of the algae and pull the algae bed upwards, causing the strange al...

Willem Kolvoort / Moss animals / Bryozoans (Cristatella mucedo) colonies consisting of 200- 500 polypides creep over stone which is covered with perifyton and oxygen bubbles, sand-winning pit, Holland

Willem Kolvoort / Freshwater algae in autumn, no longer green or producing oxygen. Peat bog, Holland. Compare with algae in number 1159885

Leo & Mandy Dickinson / Reinhold Messner and Peter Habeler before Everest ascent without oxygen, the first people to do so, 1978.

Willem Kolvoort / Reflection of Great Pond Snail (Lymnaea stagnalis) floating on water surface, Holland. Pond Snails have lungs and from time to time they float on the surface to breath. After this they can stay for qu...

Steven David Miller / Dead fish at lake edge, suffocated by algal bloom from too many nutrients in water and not enough oxygen, Lake Trafford, Florida, USA

Jason Smalley / Close-up of air bubbles at the bottom of rockpool, Morecambe Bay, Lancashire, UK.

Kim Taylor / Male Three spined stickleback {Gasterosteus aculeatus} fans nest to supply eggs with oxygen, UK, Sequence 12/16

Chris Newbert / Small Giant Clam (Tridacna maxima) siphon detail, showing colorful symbiotic photosynthetic algae growing in Giant Clam's flesh, algae produces oxygen while consuming waste ammonia, Solomon Islands

Jean E. Roche / Pondweeds - orange (Chara) and (Callitriche sp.) oxygen production. Camargue, France, Europe

David Fleetham / This nitrox tank is being marked with the oxygen percentage for advanced divers use, Hawaii.

David Fleetham / Oxygen storage bottles at the nitrox blending station, Hawaii.

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) portrait, found at depths over 500 metres, uniquely adapted to the oxygen minimum zone (OMZ) in the ocean. Its body is equipped with bioluminescent organs. Ob...

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) portrait, found at depths over 500 metres, uniquely adapted to the oxygen minimum zone (OMZ) in the ocean. Its body is equipped with bioluminescent organs. Ob...

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) portrait, found at depths over 500 metres, uniquely adapted to the oxygen minimum zone (OMZ) in the ocean. Its body is equipped with bioluminescent organs. Ob...

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) portrait, found at depths over 500 metres, uniquely adapted to the oxygen minimum zone (OMZ) in the ocean. Its body is equipped with bioluminescent organs. Ob...

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) portrait, found at depths over 500 metres, uniquely adapted to the oxygen minimum zone (OMZ) in the ocean. Its body is equipped with bioluminescent organs. Ob...

Will Watson / Pike (Esox lucius) floating dead in river due to depleted oxygen levels caused by pollution and extreme heat, River Wye, Hereford, England, UK. 22nd August 2022.

Will Watson / Pike (Esox lucius) floating dead in river due to depleted oxygen levels caused by pollution and extreme heat, River Wye, Hereford, England, UK. 22nd August 2022.

Alex Hyde / Focus stacked, inverted image of Diatoms on a microscope slide. Diatoms are single-celled algae which produce approximately 25% of the oxygen we breathe as well as being responsible for approximately...

Shane Gross / Neptune seagrass (Posidonia oceanica) with oxygen bubbles on blades. Seagrass beds absorb and store carbon 35 times more efficiently than rainforests helping the fight against climate change. 1m2 of S...

Charlie Summers / Greenback cutthroat trout (Oncorhynchus clarkii stomias) swimming with its mouth open. Fish do this to take in more water across their gills hence they derive more oxygen from that water flow. Neota W...

Philippe Clement / Strunzite, phosphate triclinic-pinacoidal mineral containing hydrogen, iron, manganese, oxygen, and phosphorus against white background

Doug Gimesy / Koala (Phascolarctos cinereus) female aged 12 months undergoing health check, veterinary nurse adminstering oxygen following anaesthetic. Joey's mother died from a terminal chlamydia infection. T...

Doug Gimesy / Koala (Phascolarctos cinereus) female aged 12 months undergoing health check, veterinary nurse adminstering oxygen following anaesthetic. Joey's mother died from a terminal chlamydia infection. T...

Willem Kolvoort / Seagrass with oxygen bubbles rising, Passe Femme / Femme channel, Aldabra, Indian Ocean

Willem Kolvoort / Seagrass with oxygen bubbles rising, Passe Femme / Femme channel, Aldabra, Indian Ocean

Willem Kolvoort / Seagrass with oxygen bubbles rising, Passe Femme / Femme channel, Aldabra, Indian Ocean

Willem Kolvoort / Seagrass with oxygen bubbles rising, Passe Femme / Femme channel, Aldabra, Indian Ocean

Willem Kolvoort / Seagrass with oxygen bubbles rising, Passe Femme / Femme channel, Aldabra, Indian Ocean

Willem Kolvoort / Seagrass with oxygen bubbles rising, Passe Femme / Femme channel, Aldabra, Indian Ocean

Willem Kolvoort / Algae on the sandy sea floor produce oxygen bubbles, Cosmoledo Island, Seychelles, Indian Ocean

Nigel Cattlin / Filamentous algae or blanket weed oxygen bubbles forming in dense growth on the surface of a garden pond. Berkshire, England, UK, March.

Nigel Cattlin / Filamentous algae or blanket weed oxygen bubbles forming in dense growth on the surface of a garden pond. Berkshire, England, UK, March.