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...