Franco Banfi / Bobtail squid (Heteroteuthis hawaiiensis), portrait, Milne Bay, Papua New Guinea, Pacific Ocean.

Franco Banfi / Bobtail squid (Heteroteuthis hawaiiensis) on the seabed, Komodo National Park, Indonesia, Pacific Ocean.

Franco Banfi / Long arms octopus (Octopus minor) burrowing in the seabed, Lembeh Strait, North Sulawesi, Indonesia.

Franco Banfi / Long arms octopus (Octopus minor) stretching out on the sandy seabed, Lembeh Strait, North Sulawesi, Indonesia.

Franco Banfi / Long arms octopus (Octopus minor) burrowing in the seabed, Lembeh Strait, North Sulawesi, Indonesia.

Solvin Zankl / Deep-sea anglerfish (Melanocetus johnsonii) female swimming and showing teeth. Captive.

Solvin Zankl / Deep-sea anglerfish (Melanocetus johnsonii) female backlit swimming in the darkness. Captive.

Solvin Zankl / Barbeled dragonfish (Astronesthes caulophorus) close up profile, Benguela Current, Atlantic Ocean, close to Namibia. Controlled Conditions.

Solvin Zankl / Barbeled dragonfish (Astronesthes caulophorus) motionless in the darkness, Benguela Current, Atlantic Ocean, close to Namibia. Controlled Conditions.

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) close up of fin and eye, Benguela Current, Atlantic Ocean, close to Namibia. Found at depths over 500 metres. Controlled Conditions.

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) drifting in the darkness, Benguela Current, Atlantic Ocean, close to Namibia. Found at depths over 500 metres. Controlled Conditions.

Solvin Zankl / Vampire squid (Vampyroteuthis infernalis) swimming quickly away from camera into the darkness, Benguela Current, Atlantic Ocean, close to Namibia. Found at depths over 500 metres. Controlled Condition...

Solvin Zankl / Cock-eyed squid (Histioteuthis bonnellii) close-up of swimming fins, Benguela Current, Atlantic Ocean, close to Namibia. Found at depths of over 1,000 meters. Controlled Conditions.

Solvin Zankl / Cock-eyed squid (Histioteuthis bonnellii) swimming in the darkness close-up, Benguela Current, Atlantic Ocean, close to Namibia. Found at depths of over 1,000 meters. Controlled Conditions.

Solvin Zankl / Cock-eyed squid (Histioteuthis bonnellii) swimming in the darkness, Benguela Current, Atlantic Ocean, close to Namibia. Found at depths of over 1,000 meters. Controlled Conditions.

Solvin Zankl / Threadfin dragonfish (Echiostoma barbatum) close up panning shot from bioluminescent barbel to the head, Benguela Current, Atlantic Ocean, close to Namibia. Controlled Conditions.

Solvin Zankl / Threadfin dragonfish (Echiostoma barbatum) close up, showing large teeth and triangular luminous organ positioned under the eye, Benguela Current, Atlantic Ocean, close to Namibia. Controlled Conditio...

Solvin Zankl / Threadfin dragonfish (Echiostoma barbatum) close up of bioluminescent barbel found beneath the lower jaw, Benguela Current, Atlantic Ocean, close to Namibia. Lives at depths of over 2,000 meters. Cont...

Solvin Zankl / Threadfin dragonfish (Echiostoma barbatum) motionless, showing large teeth and bioluminescent barbel beneath the lower jaw, Benguela Current, Atlantic Ocean, close to Namibia. Found at depths of over...

Solvin Zankl / Sea angel (Gymnosomata) swimming using wings, found at depths of 500 meters, Benguela Current, Atlantic Ocean, close to Namibia. Controlled Conditions.

Georgette Douwma / RF - Broadclub cuttlefish (Sepia latimanus) on black background, Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Broadclub cuttlefish (Sepia latimanus) composite image showing variation of colour and shape, on black background, Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as...

Georgette Douwma / RF - Broadclub cuttlefish (Sepia latimanus) composite image showing various colours and shapes on black background, Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as righ...

Georgette Douwma / RF - Jeweled anemone hermit crab (Dardanus gemmatus) on black background, Malapascua Island, Philippines. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Semicircle angelfish (Pomacanthus semicirculatus) composite image on black background, Indonesia. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Queen angelfish (Holacanthus ciliaris) composite image on blackbackground, Bonaire, Antilles, Caribbean, . (This image may be licensed either as rights managed or royalty free.).

Georgette Douwma / RF - Spine-cheek anemonefish (Premnas biaculeatus) composite image on black background. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Spine-cheek anemonefish (Premnas biaculeatus) composite image on black background. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Eschmeyer's scorpionfish (Rhinopias eschmeyeri) composite image showing different colour variations on black background. Lembeh Strait, North Sulawesi, Indonesia. (This image may be license...

Georgette Douwma / RF - Blue-ringed octopus (Hapalochlaena sp.) composite image on black background, Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Wonderpus (Wunderpus photogenicus) long-armed octopus on black background, Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Wonderpus (Wunderpus photogenicus) long-armed octopus on black background, Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Composite image of tropical nudibranchs on a black background showing variety and abundance of species, Indo-Pacific (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Composite image of tropical nudibranchs on a black background showing variety and abundance of nudibranch species, Indo-Pacific (This image may be licensed either as rights managed or royalty fre...

Georgette Douwma / RF - Composite image of blue tropical reef fish on a black background, Blue triggerfish (Pseudobalistes fuscus), Elonggate surgeonfish (Acanthurus mata), Yellowtail tang (Zebrasoma xanthurum), Neon da...

Georgette Douwma / RF - Composite image of tropical reef fish on a black background, Rusty parrotfish (Scarus ferrugineus), Striped surgeonfish (Acanthurus lineatus), Saddleback butterflyfish (Chaetodon falcula), Seahor...

Georgette Douwma / RF - Tropical reef fish, composite image on a black background, Lyretail dottyback (Pseudochromis steenei), Solor boxfish / Reticulated boxfish (Ostracion solorensis), Round batfish (Platax orbiculari...

Georgette Douwma / RF - Tropical reef fish, composite image on a black background, Mimic surgeonfish (Acanthurus pyroferus), Elongate surgeonfish (Acanthurus mata), Redmouth triggerfish (Odonus niger), Black spotted por...

Georgette Douwma / RF - Tropical reef fish, composite image on black background, Radial filefish (Acreichthys radiatus), Devilfish (Inimicus didactylus), Black-spotted porcupinefish (Arothron hystrix), Puffer filefish...

Georgette Douwma / RF - Tropical reef fish, composite image on black background, Thornback cowfish (Lactoria penthacantha), Mandarinfish (Synchiropus splendidus), Square-spot antias (Pseudanthias pleurotaenia), Lionfis...

Georgette Douwma / RF - Tropical reef fish, composite image on black background, Yellowbar angelfish (Pomacanthus maculosus), Square-spot anthias (Pseudanthias pleurotaenia), male and female, Seagrass filefish (Acreich...

Georgette Douwma / RF - Tropical reef fish, composite image on black background, Bennets's toby / Bennet's sharpnose puffer (Canthigaster bennetti), Clown triggerfish (Balistoides conspicillum), Spectacled fi...

Georgette Douwma / RF - Antennata lionfish (Pterois antennata) with four juveniles, composite image on black background, Indo-Pacific. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Juvenile Antennata lionfish (Pterois antennata) on black background, Indo-Pacific. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Striped / Hairy frogfish (Antennarius striatus) on black background, Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / RF - Pfeffer's flamboyant cuttlefish (Metasepia pfefferi) on black background, Puerto Galera, Philippines, Pacific Ocean. (This image may be licensed either as rights managed or royalty free.)

Georgette Douwma / Multipore starfish (Linckia multifora) on black background, regenerating arms, West Papua, Indonesia, Indo-Pacific.

Georgette Douwma / Severed arm of Porous starfish (Fromia milleporella) on black background, regenerating six arms, West Papua, Indonesia, Indo-Pacific.

Georgette Douwma / Severed arm of Multipore Starfish (Linckia multifora), on black background, regenerating, West Papua, Indonesia, Indo-Pacific.

Georgette Douwma / Surgeonfish, composite image on black background, Yellowtail tang (Zebrasoma xanthurum), Powder-blue surgeonfish (Acanthurus leucosternon), Elongate surgeonfish (Acanthurus mata), Striped surgeonfish...

Georgette Douwma / Blacktongue unicornfish (Naso hexacanthus) composite image showing variation in marking on black background, Maldives, Indian Ocean.

Georgette Douwma / Spotted unicornfish (Naso brevirostris) and Blue-spine surgeonfish (Naso unicornis) composite image on black background, Maldives, Indian Ocean.

Georgette Douwma / Surgeonfish composite image on black background, Powder-blue surgeonfish (Acanthurus leucosternon), Striped surgeonfish (Acanthurus lineatus), Mimic surgeonfish (Acanthurus pyroferus), Sohal surgeonfi...

Georgette Douwma / Surgeonfish composite image on black background, Bluespine surgeonfish (Naso unicornis), Striped surgeonfish (Acanthurus lineatus), Sailffin tang (Zebrasoma veliferum) juvenile, Mimic surgeonfish (Aca...

Georgette Douwma / Two spot wrasse (Oxycheilinus bimaculatus) male and female, composite image on black background. Philippines, Pacific Ocean.

Georgette Douwma / Two spot wrasse (Oxycheilinus bimaculatus) male and female, composite image on black background, Philippines, Pacific Ocean.

Georgette Douwma / Two spot wrasse (Oxycheilinus bimaculatus) female and male, composite image on black background, West Papua, Indonesia, Indo-Pacific.

Georgette Douwma / Yellowbar angelfish (Pomacanthus maculosus) composite image on black background, Red Sea, Egypt.

Georgette Douwma / Emperor angelfish (Pomacanthus imperator) adult (left) and juvenile (right) composite image on black background, Andaman Sea, Thailand.

Georgette Douwma / French angelfish (Pomacanthus paru) composite image on black background, Bonaire, Netherlands Antilles, Caribbean.

Georgette Douwma / Queen angelfish (Holacanthus ciliaris) on black background, Bonaire, Netherlands Antilles, Caribbean.

Georgette Douwma / Blue-ringed angelfish (Pomacanthus annularis) composite image on black background, Indonesia, Indo-Pacific.

Georgette Douwma / Square-spot anthias (Pseudanthias pleurotaenia) male and female, composite image on black background, Indonesia, Indo-Pacific.

Georgette Douwma / Lyretail anthias (Pseudanthias squamipinnis) male and female, composite image on black background, Red Sea, Egypt.

Georgette Douwma / Square-spot anthias (Pseudanthias pleurotaenia) male on black background, Indonesia, Indo- Pacific.

Georgette Douwma / Blue / Rippled triggerfish (Pseudobalistes fuscus), adult and three juveniles, composite image on black background, Lembeh Strait, North Sulawesi, Indonesia, Indo-Pacific.

Georgette Douwma / Yellow boxfish / Cube trunkfish (Ostracion cubicus) male and female, composite image on black background, Red Sea, Egypt.

Georgette Douwma / Female Yellow boxfish (Ostracion cubicus) with juvenile, composite image on black background, Komodo National Park, Indonesia, Indo-Pacific.

Georgette Douwma / Female Yellow boxfish (Ostracion cubicus) composite image on black background, Red Sea, Egypt.

Georgette Douwma / Yellow boxfish (Ostracion cubicus), male and female, composite image on black background, Red Sea, Egypt.

Georgette Douwma / Spanner crab (Ranina ranina) on black background, Rinca, Indonesia, Indo-Pacific.

Georgette Douwma / Pfeffer's flamboyant cuttlefish (Metasepia pfefferi) composite image showing colour variation on black background, Puerto Galera, Philippines, Indo-Pacific.

Georgette Douwma / Broadclub cuttlefish (Sepia latimanus) showing colours and shape variation, composite image on black background, Lembeh Strait, North Sulawesi, Indonesia, Indo-Pacific.

Georgette Douwma / Broadclub cuttlefish (Sepia latimanus) showing various colours and shapes, composite image on black background, Lembeh Strait, North Sulawesi, Indonesia, Indo-Pacific.

Georgette Douwma / Pfeffer's flamboyant cuttlefish (Metasepia pfefferi) juvenile on black background, Lembeh Strait, North Sulawesi, Indonesia, Indo-Pacific.

Georgette Douwma / Pfeffer's flamboyant cuttlefish (Metasepia pfefferi) composite image on black background showing colour variations, Puerto Galera, Philippines, Indo-Pacific.

Georgette Douwma / Broadclub cuttlefish (Sepia latimanus) composite image on black background showing colour variations, Lembeh Strait, North Sulawesi, Indonesia, Indo-Pacific species.

Georgette Douwma / Broadclub cuttlefish (Sepia latimanus) showing various colours and shapes, composite image on black background, Lembeh Strait, North Sulawesi, Indonesia, Indo-Pacific.

Georgette Douwma / Mimic leatherjacket / Blacksaddle mimic filefish (Paraluteres prionurus) adult and juvenile, composite image on black background, Bali, Indonesia, Indo-Pacific.

Georgette Douwma / Female Harlequin / Ornate ghostpipefish (Solenostomus paradoxus) carrying eggs in pouch formed with pelvic fins, on black background, Bali, Indonesia, Indo-Pacific.

Georgette Douwma / Zebra lionfish (Dendrochirus zebra) on black background, Lembeh Strait, Sulawesi, Indo-Pacific.

Georgette Douwma / Shortfin lionfish (Dendrochirus brachypterus) on black background. Lembeh Strait, North Sulawesi, Indo-Pacific.

Georgette Douwma / Antennata lionfish (Pterois antennata) adult and four juveniles, composite image on black background, Indo-Pacific.

Georgette Douwma / Tropical reef fish composite image on black background, Blue triggerfish (Pseudobalistes fuscus), Orangestripe triggerfish (Balistapus undulatus), Clown triggerfish (Balistoides conspicillum), Arabian...

Georgette Douwma / Tropical reef fish composite image on black background, Devilfish (Inimicus didactylus), Star puffer (Arothron stellatus), Striped surgeonfish (Acanthurus lineatus), Seahorse (Hippocampus sp.), Leaffi...

Georgette Douwma / Tropical reef fish composite image on black background, Splendid soldierfish (Myripristis melanosticta), Pajama cardinalfish (Sphaeramia nematoptera), Golden puffer (Arothron meleagris), Banggai cardi...

Georgette Douwma / Tropical reef fish composite image on black background, Kasmira snapper (Lutjanus kasmira), Greenthroat parrotfish (Scarus prasiognathos), Two spot wrasse (Oxycheilinus bimaculatus), Rusty parrotfish...

Georgette Douwma / Tropical reef fish composite image on black background, Boxfish (Ostracion meleagris), Squarespot anthias (Pseudanthias pleurotaenia), Blackspotted pufferfish (Arothron nigropunctatus), Rhinopias scor...

Georgette Douwma / Tropical angelfish composite image on black background, Blue-ringed angelfish (Pomacanthus annularis), Semicircle angelfish (Pomacanthus semicirculatus), Blacktail angelfish (Centropyge eibli), Regal...

Georgette Douwma / Tropical reef fish composite image on black background, Thornback cowfish (Lactoria fornasini), Red lionfish (Pterois volitans), Devilfish (Inimicus didactylus), Banggai cardinalfish (Pterapogon kaud...

Georgette Douwma / Tropical reef fish composite image on black background, Black-spottted porcupinefish (Arothron hystrix), Three-spot angelfish (Apolemichthys trimaculatus), Mandarinfish (Synchiropus splendidus), Rhino...

Georgette Douwma / Tropical reef fish composite image on black background, Thornback cowfish (Lactoria fornasini), Longnose filefish (Oxymonacanthus longirostris), Blackbarred sandperch (Parapercis tetracantha), Lyretai...

Georgette Douwma / Blue tropical reef fish composite image on black background, Blue triggerfish (Pseudobalistes fuscus), Bicolour angelfish (Centropyge bicolor), Elongate surgeonfish (Acanthurus mata), Yellowtail tang...

Georgette Douwma / Triggerfish composite image on black background, Arabian picassofish (Rhinecanthus assasi), Orangestriped triggerfish (Balistapus undulatus), Titon triggerfish (Balistoides viridescens) with two juven...

Georgette Douwma / Yellow tropical reef fish composite image on black background, Falcula butterflyfish (Chaetodon falcula), Yellow boxfish (Ostracion cubicus), Golden butterflyfish (Chaetodon semilarvatus), Red Sea clo...

Georgette Douwma / Yellow tropical reef fish composite image on black background, Sailfin tang (Zebrasoma veliferum) juvenile, Pajama cardinalfish (Sphaeramia nematoptera), Three-spot angelfish (Apolemichthys trimaculat...