Pascal Kobeh / Henshaw's snake eel (Brachysomophis henshawi) burried in the sand, Sulu sea, Philippines

Pascal Kobeh / Henshaw's snake eel (Brachysomophis henshawi) buried in the sand, Sulu sea, Philippines

Pascal Kobeh / Close-up of Peacock flounder (Bothus mancus), Sulu sea, Philippines

Alex Mustard / Few fish from a school of Bigeye trevally (+Caranx sexfasciatus) break off to scratch themselves against the flank of a blacktip reef shark (Carcharhinus melanopterus). This is a common and world wide...

Tony Wu / Two male Zoarchias major eelpouts (Zoarchias major) engaged in a mouth-to-mouth confrontation. Yamaguchi Prefecture, Japan, Pacific Ocean.

Tony Wu / Two male Zoarchias major eelpouts (Zoarchias major) engaged in a mouth-to-mouth confrontation. Yamaguchi Prefecture, Japan, Pacific Ocean.

Tony Wu / Two male Zoarchias major eelpouts (Zoarchias major) engaged in a mouth-to-mouth confrontation. Yamaguchi Prefecture, Japan, Pacific Ocean.

Tony Wu / Two male Zoarchias major eelpouts (Zoarchias major) engaged in a mouth-to-mouth confrontation. Yamaguchi Prefecture, Japan, Pacific Ocean.

Tony Wu / Two male Zoarchias major eelpouts (Zoarchias major) engaged in a mouth-to-mouth confrontation. Yamaguchi Prefecture, Japan, Pacific Ocean.

Tony Wu / Two male Zoarchias major eelpouts (Zoarchias major) engaged in a mouth-to-mouth confrontation. Yamaguchi Prefecture, Japan, Pacific Ocean.

Alex Mustard / Giant frogfish (Antennarius commersoni). Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Shane Gross / Portrait of an Ornate ghost pipefish (Solenostomus paradoxus) Anilao, Philippines.

Georgette Douwma / Seagrass filefish (Acreichthys tomentosus). Lembeh Strait, North Sulawesi, Indonesia.

Georgette Douwma / Tasseled scorpionfish (Scorpaenopsis oxycephala). West Papua, Indonesia. Indo-West Pacific.

Pascal Kobeh / Painted frogfish / anglerfish (Antennarius pictus) Sulu Sea, Philippines.Small repro only

Pascal Kobeh / Pair of Striated frogfish / anglerfish (Antennarius striatus) Sulu Sea, Philippines.

Pascal Kobeh / Striated frogfish / anglerfish (Antennarius striatus) luring to attract its prey. Sulu Sea, Philippines.

Pedro Narra / West African mudskipper (Periophthalmus barbarus) portrait, Joao Vieira Poillo , Bijagos Archipellago. Guinea Bissau

David Fleetham / Painted frogfish (Antennarius pictus) with first dorsal spine and lure extended to attract prey. Dumaguete, Philippines.

Magnus Lundgren / Wild Wonders of China / Painted frogfish (Antennarius pictus) Basalt Island, Sai Kung District, Hong Kong, CHina.

Magnus Lundgren / Wild Wonders of China / Painted frogfish (Antennarius pictus) Basalt Island, Sai Kung District, Hong Kong, China.

Magnus Lundgren / Wild Wonders of China / Bluespotted cornetfish (Fistularia commersonii) at night, Tai Po Tsai, Sai kung, Hong Kong, China

Remi Masson / Wels catfish (Silurus glanis) eating pigeon on the river bank, Tarn, River Tarn, Albi, France, July.

Remi Masson / Wels catfish (Silurus glanis) eating pigeon on river bank, River Tarn, Albi, France, July.

Remi Masson / Wels catfish (Silurus glanis) about to attack pigeon on the shore, Tarn, River Tarn, Albi, France, July.

Georgette Douwma / Gorgonian sea fan (Melithaea sp.) with Lyretail anthias (Pseudanthias sqamipinnis). Similan Islands, Andaman Sea, Thailand

Georgette Douwma / Kaleidoscopic image of coral reef with soft corals (Dendropnethya) shoal of Yellow back fusilliers (Caesio teres) West Papua, Indonesia.

Georgette Douwma / Kaleidoscopic image of Coral reef scenery with gorgonian, soft corals and Lyretail anthias (Pseudanthias squamipinnis). Rinca, Komodo National Park, Indonesia.

Georgette Douwma / Kaleidoscopic image of Banggai cardinalfish (Pterapogon kauderni) in sea anemone. Lembeh Strait, North Sulawesi, Indonesia.

Georgette Douwma / Paddle-flap scorpionfish (Rhinopias eschmeyeri) Puerto Galera, Philippines.

David Fleetham / Sargassum fish (Histrio histrio) at the sea surface with floating sargassum weed. Hawaii.

David Fleetham / Tasselled wobbegong (Eucrossorhinus dasypogon) Raja Ampat, Indonesia.

David Fleetham / Ornate or Harlequin ghost pipefish (Solenostomus paradoxus), Komodo National Park, Indonesia.

David Fleetham / Guineafowl pufferfish (Arothron meleagris), puffed up in defence, Hawaii.

David Fleetham / Longlure frogfish (Antennarius multiocellatus) using it's "lure" to attract prey. Bonaire, Caribbean.

David Fleetham / Longlure frogfish (Antennarius multiocellatus) waving it's fleshy lure to attract prey. Bonaire, Caribbean.

David Fleetham / Longlure frogfish (Antennarius multiocellatus) opens it's mouth to yawn / stretch. Bonaire, Caribbean.

David Fleetham / Bird wrasse (Gomphosus varius) male in terminal phase, Hawaii.

David Fleetham / Giant / Commerson's Frogfish (Antennarius commerson) pair on coral reef, Hawaii.

Nick Hawkins / Ocean sunfish (Mola mola) off Halifax, Nova Scotia, Canada. July.

Nick Hawkins / Ocean sunfish (Mola mola) off Halifax, Nova Scotia, Canada. July.

Alex Mustard / Leaf scorpionfish (Taenianotus triacanthus) on a sponge. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocean.

Alex Mustard / Blue ribbon eel (Rhinomuraena quaesita) male. Ambon Bay, Ambon, Maluku Archipelago, Indonesia. Banda Sea, tropical west Pacific Ocean.

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 6/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 7/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 8/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 9/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 10/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 11/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 12/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 13/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 1/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 2/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 3/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 4/13

Eric Baccega / Shoebill stork (Balaeniceps rex) female feeding on a Spotted African lungfish (Protopterus dolloi) in the swamps of Mabamba, Lake Victoria, Uganda.. Sequence 5/13

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) shoal swimming with open mouths, filtering for zooplankton. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Tony Wu / Asian sheepshead wrasse (Semicossyphus reticulatus) two mature males in breeding colouration fighting over territory. Niigata, Japan.

Tony Wu / Asian sheepshead wrasse (Semicossyphus reticulatus) mature male in breeding colouration. Niigata, Japan. non-ex. Awarded in Animal Portraits category, Wildlife Photographer of the Year 2018.

Tony Wu / Asian sheepshead wrasse (Semicossyphus reticulatus) mature male in breeding colouration. Niigata, Japan.

Tony Wu / Ocean sunfish (Mola mola) close up whilst relaxing at waters surface, South Africa, Atlantic Ocean.

Claudio Contreras / Rockmover wrasse (Novaculichthys taeniourus) juvenile, San Agustin Bay, Huatulco Bays National Park, southern Mexico, November

Alex Mustard / Portrait of a Pacific monkeyfish (Erosa erosa) lying in ambush on a sandy seabed. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Franco Banfi / Paper / Leaf scorpion fish (Taenianotus triacanthus) portrait, Lazi Pier, Dumaguete, East Negros Island, Central Visayas, Philippines, Pacific Ocean.

Bert Willaert / Frogfish (Antennarius sp.), Kimbe Bay, West New Britain, Papua New Guinea

Bert Willaert / Variegated lizardfish (Synodus variegatus), Bismarck Sea, Vitu Islands, West New Britain, Papua New Guinea

Doug Perrine / Cusk eel larva (Brotulotaenia nielseni) in surface waters of deep open ocean at night, Kona, Hawaii, August. The larval stage of this fish is translucent and has elaborated fin rays and an external g...

Doug Perrine / Pearlfish / Fierasfer larva (probably Carapus sp.) in surface waters of the deep open ocean at night, Kona, Hawaii,. August. This larva is about two feet long and possesses a vexillifer, or head decor...

Terry Whittaker / Arctic fox (Vulpes lagopus) blue colour morph female with lumpsucker fish (Cyclopterus lumpus) scavenged from the beach. Hornstrandir Nature Reserve, Iceland. March

Alex Mustard / Mirrored portrait of a Weedy scorpionfish (Rhinopias frondosa). Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea. Digitally manipulated (the face is reflected down mid-line).

Alex Mustard / Close up portrait of the face of a Nurse shark (Ginglymostoma cirratum) resting on the sand in shallow water. Its barbels are clearly visible on its top lip. South Bimini, Bahamas. The Bahamas Nationa...

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) with mouths wide open as they swim through the water, filtering zoopankton with their gill rakers. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Alex Mustard / Striped mackerel (Rastrelliger kanagurta) with mouths wide open as they swim through the water, filtering zoopankton with their gill rakers. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Nature Production / Ocellated lionfish (Dendrochirus biocellatus), Chichijima, Ogasawara Islands UNESCO World Heritage Site, Japan

Tony Wu / Starry handfish (Halieutaea stellata) descending back to depth after released from a fishing net. Kochi, Japan.

Nature Production / Elephantfish (Campylomormyrus tshokwe) native to Democratic Republic of the Congo and Angola

Tony Wu / Starry handfish / Minipizza batfish (Halieutaea stellata) on sea floor, Kochi, Japan.

Tony Wu / Starry handfish / Minipizza batfish (Halieutaea stellata) on sea floor, Kochi, Japan.

Tony Wu / Starry handfish / Minipizza batfish (Halieutaea stellata) on sea floor, Kochi, Japan.

Tony Wu / Starry handfish / Minipizza batfish (Halieutaea stellata) descending after it was released from a fishing net. Kochi, Japan.

Tony Wu / Starry handfish / Minipizza batfish (Halieutaea stellata) descending after it was released from a fishing net. Kochi, Japan.

Constantinos Petrinos / Roughsnout ghost pipefish (Solenostomus paegnius) red male. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) female with eggs in the brood pouch. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) female with eggs in the brood pouch. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) male, Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Male harlequin ghost pipefish (Solenostomus paradoxus) Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) female with eggs in the brood pouch. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Orbicular batfish (Platax orbicularis) leaf-like juvenile. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Orbicular batfish (Platax orbicularis) leaf-like juvenile. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Orbicular batfish (Platax orbicularis) leaf-like juvenile. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Orbicular batfish (Platax orbicularis) leaf-like juvenile. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Orbicular batfish (Platax orbicularis) leaf-like juvenile. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Orbicular batfish (Platax orbicularis) leaf-like juvenile camouflaged on leaf, Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Orbicular batfish (Platax orbicularis) leaf-like juvenile camouflaged on leaf, Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Giant anglerfish (Antennarius commerson) Lembeh Strait, North Sulawesi, Indonesia.