Doug Perrine / Bioluminescence from glowing plankton in sea tide line on beach, with stars above and ship lights on horizon, Vaadhoo Island, Raa Atoll, Maldives, Indian Ocean, October 2010

Kim Taylor / Click beetle (Pyrophorus sp) showing orange bioluminescence, Costa Rica

Solvin Zankl / Lanternfish (Lepidophanes guentheri) - deepsea species showing bioluminescence.

Martin Dohrn / John Ruthven swimming in the Bioluminescence Bay in Vieques, Puerto Rico. Dinoflagellates create the bioluminescense when disturbed. Model released.

Martin Dohrn / Cardinal fish (Apogon sp) moments after it has mistakenly tried to eat an ostracod. The ostracod then releases glowing mucus that is so bright that it can be seen through the body of the fish. This gi...

Andy Sands / Glow Worm (Lampyris noctiluca) female glowing after dark. Hertfordshire, England, UK, July.

Andy Sands / Glow Worm (Lampyris noctiluca) female glowing after dark. Hertfordshire, England, Uk, July.

Doug Perrine / Flower Hat Jelly / Jellyfish (Olindias formosa), a rare hydromedusa with fluorescent tentacle tips. Endemic to Brazil, Argentina, and southern Japan.

Nick Garbutt / Luminous Fungi (Mycena sp.) with small spider resting on underside. Montane mossy heath forest or 'kerangas', Maliau Basin, Sabah's 'Lost World', Borneo.

Andy Sands / Glow worm (Lampyris noctiluca) climbing on stem of grass, with tail emitting bioluminescence, England, UK, July

Paul Harcourt Davies / Glow worm (Lampyris noctiluca) female glowing, Italy.

Stephen Dalton / Glow-worm (Lampyris noctiluca) female glowing, UK

Stephen Dalton / Glow-worm (Lampyris noctiluca) female glowing, UK

David Shale / Midwater Bristlemouth fish {Sigmops elongatum} night, 188 - 507m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Head-on view of Spothead lanternfish {Diaphus metopocampus} from between 500 and 800m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Head-on view of Spothead lanternfish {Diaphus metopocampus} from between 500 and 800m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea Dragonfish {Eustomias monodactylus} with bioluminescent lure, from between 498 and 805m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Greater silver hatchet fish (Argyropelecus gigas) Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Comb Jelly {Bollinopsis ssp} caught with 1m ring net between 0 and 150m, comb plates, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Linophryne sp} from the Mid-Atlantic Ridge, North Atlantic Ocean

Solvin Zankl / Deep Sea Viperfish {Chauliodus sloani} with chromatophores and bioluminescence, Atlantic ocean

Solvin Zankl / Murrays abyssal anglerfish (Melanocetus murrayi) Atlantic ocean. A deep-sea fish with bioluminescent lure used to attract prey. The bioluminescence is produced by symbiotic bacteria; these bacteria ar...

David Shale / Lanternfish {Notoscopelis sp} ventral view, from the mid-Atlantic ridge from 100-150m at night

David Shale / Viperfish {Chauliodus sloani} deepsea, from the Mid-Atlantic Ridge, 400-520m, during the day

David Shale / Viperfish {Chauliodus sloani} deepsea, from the Mid-Atlantic Ridge, 400-520m, during the day

Nick Garbutt / Glow worms bioluminescing {Lampyris noctiluca}

David Shale / Deepsea fish {Stomias boa} with lure and light organs, deep sea Atlantic ocean

Doug Wechsler / Plainfin midshipman {Porichthys notatus} with photopores on chin, occurs in Pacific ocean. captive

Juergen Freund / Mating pair of Big fin reef squids {Sepioteuthis lessoniana} Indo Pacific

Michael Pitts / Chain of fluorescent tunicates {Salpa maxima} off Komodo Is, Indonesia

Chris Packham / Glow worm beetle female displaying to attract male (Lampyris noctiluca) protected

Andrew Cooper / Glow Worm beetle female glowing at sunset to attract mate, Devon England (Lampyris noctiluca)

Michael Durham / Douglas fir glow worm {Pterotus obscuripennis} glowing at night Oregon USA

Dietmar Nill / Firefly glowing {Lamprohiza splendidula} Germany

David Shale / Deep sea Anglerfish female with lure {Himantolophus sp} Atlantic ocean

Juergen Freund / Jellyfish - Bell Jelly in Pacific Ocean (Polyorchis sp) off California, USA

Pete Oxford / Day gecko drinking, Ankarana NP, Madagascar

David Shale / Eye of deep sea squid {Pyroteuthis sp} Atlantic ocean

Martin Dohrn / Bioluminescence - pool with Snook, Snapper and a Stingray fish, Bio Bay, Vieques Island, Puerto Rico. Central America. Starlight image intensifier camera image taken with no artificial light.

Juergen Freund / Big fin reef squid {Sepioteuthis lessonians} Indo Pacific

Constantinos Petrinos / Big fin reef squid in deep water {Sepioteuthis lessonians} Sulawesi, Indonesia Indo-Pacific

Solvin Zankl / GEOMAR / Bristleworm (Tomopteris helgolandicus) Trondheimfjord, North Atlantic Ocean, Norway. Photo taken in cooperation with GEOMAR coldwater coral research project

Solvin Zankl / Lanternfish (Lepidophanes guentheri) - deepsea species showing bioluminescence.

Martin Dohrn / Stitched panoramic image of Ostracods using their light to display to mates. There are two species here, both from a new genus and neither of which has been properly described. At this stage, they are...

Martin Dohrn / Stitched panoramic image of Ostracods using their light to display to mates. There are two species here, both from a new genus and neither of which has been properly described. At this stage, they are...

Martin Dohrn / Lake at night with band of the Milky Way overhead and Glow worm (Lampyris noctiluca) in foreground. Lilhac, near Toulouse, Haute Garonne, France, July.

Doug Perrine / Flower Hat Jelly / Jellyfish (Olindias formosa), a rare hydromedusa with fluorescent tentacle tips. Endemic to Brazil, Argentina, and southern Japan.

Doug Perrine / Flower hat jelly / jellyfish (Olindias formosa) captive, a rare hydromedusa with fluorescent tentacle tips, found off Brazil, Argentina, and southern Japan

Doug Perrine / Flower hat jelly / jellyfish (Olindias formosa) captive, a rare hydromedusa with fluorescent tentacle tips, found off Brazil, Argentina, and southern Japan

Nature Production / Swordtip Squid (Loligo edulis) larvae, Japan

Doug Perrine / Bioluminescence from glowing plankton in sea tide line on beach, with stars above and ship lights on horizon, Vaadhoo Island, Raa Atoll, Maldives, Indian Ocean, October 2010

Juergen Freund / Firefly (Lampyridae) Solomon Islands.

Juergen Freund / Bobtail squid (Euprymna sp.). These squid have a symbiotic relationship with bioluminescent bacteria. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Bobtail squid (Euprymna sp.). These squid have a symbiotic relationship with bioluminescent bacteria. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Bobtail squid (Euprymna sp.). These squid have a symbiotic relationship with bioluminescent bacteria. North Raja Ampat, West Papua, Indonesia.

Suzi Eszterhas / Comb Jelly (Beroe) Monterey Bay Aquarium, California, USA, Captive

Andy Sands / Glow worm (Lampyris noctiluca) climbing on stem of grass, with tail emitting bioluminescence, England, UK, July

Juergen Freund / Comb jelly {Ctenophora} Lizard Island, Queensland, Australia, April 2008

Stephen Dalton / Glow-worm (Lampyris noctiluca) female glowing, UK

Stephen Dalton / Glow-worm (Lampyris noctiluca) female glowing, UK

David Shale / Lanternfish {Trigonolampa miriceps} Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Ventral photophores of Midwater Bristlemouth fish {Sigmops elongatum} night, 188 - 507m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea Dragonfish {Eustomias monodactylus} with bioluminescent lure, from between 498 and 805m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Greater silver hatchet fish (Argyropelecus gigas) head profile, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Ventral view of Pearlfish {Maurolicus sp} showing photophores, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Comb Jelly {Bollinopsis ssp} caught with 1m ring net between 0 and 150m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Head-on view of Spothead lanternfish {Diaphus metopocampus} from between 500 and 800m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Chaenophryne draco} with lure, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Close up of abdomen of Greater silver hatchet fish (Argyropelecus gigas) showing ventral light organs, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Greater silver hatchet fish (Argyropelecus gigas) Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea copepod, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Ventral view of Pearlfish {Maurolicus sp} showing photophores, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Ventral view of Pearlfish {Maurolicus sp} showing photophores, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Close up of snare / barbel of deepsea fish {Borostomias sp}, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Close up of snare / barbel of deepsea fish {Borostomias sp}, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Chaenophryne draco} with lure, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Linophryne sp} from the Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Close up of snare / barbel of deepsea fish {Borostomias sp}, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Linophryne sp} from the Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Dragonfish {Malacosteus niger} from 2422 - 0m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea copepod caught between 2357 and 2533m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Lanternfish {Notoscopelis bolini} Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Lophodolus acanthognathus} from 718 - 1864m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea copepod at 0-159m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Ventral view of Lanternfish {Notoscopelis bolini} showing photophores, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea copepod from 2701-1864m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Chaenophryne draco} with lure, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Close up of the esca or lure of the Angler fish {Linophryne sp} from the Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Close up of chin barbel of the Angler fish {Linophryne sp} from the Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Lanternfish {Notoscopelis bolini} showing photophores, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea fish {Borostomias antarcticus} showing snare, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea copepod from 0-159m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish {Chaenophryne draco} with lure, Mid-Atlantic Ridge, North Atlantic Ocean

Juergen Freund / Flashlight fish {Anomalopidae} Indo-pacific

Juergen Freund / Night shot of Laciola species fireflies in their thousands flying about within a single wild almond or coastal catappa tree "Talisay" (Terminalia catappa) Camarines Sur, Luzon, Philippines 2008. Final...

David Shale / Lanternfish {Notoscopelis sp} from the mid-Atlantic ridge from 100-150m at night