A traditional Japanese meal of sushi and fish head, Tokyo, Honshu Island, Japan, Asia

Short-head sabretooth (fang) blenny (Petroscirtes breviceps), peering from a discarded plastic bottle, Gorontalo, Indonesia, Southeast Asia, Asia

A cleaner shrimp (Lysmata amboinensis), inspects the teeth of an undulated moray eel, Hawaii, United States of America, Pacific, North America

Giant moray eel (Gymnothorax javanicus), Fiji, South Pacific, Pacific

Close-up of a devil scorpionfish (Scorpaenopsis diabolus), Hawaii, United States of America, Pacific, North America

Spinyhead blenny (Acanthemblemaria spinosa), in hard coral, Bonaire, Caribbean, Central America

Osprey (Pandion haliaetus) flying head on above a pond with a fish firmly grasped in its talons, Pirkanmaa, Finland, Scandinavia, Europe

Whitetip reef sharks (Triaenodon obesus) resting on the ocean floor, Hawaii, United States of America, Pacific, North America

Puffin with sand eels in beak, Wales, United Kingdom, Europe

Puffin with sand eels in beak, Wales, United Kingdom, Europe

Puffin with sand eels in beak, Wales, United Kingdom, Europe

Trumpetfish (Aulostomus chinensis) attempting to conceal itself in a school of milletseed butterflyfish, United States of America, North America

Great barracuda (Sphyraena barracuda), Hawaii, United States of America, Pacific, North America

Local women buying freshly caught fish, Chowara Beach, near Kovalam, Kerala, India, Asia

Close-up view of a three color parrotfish (Scarus tricolor), coming in for a bite of hard coral, Fiji, South Pacific, Pacific

A great barracuda (Sphyraena barracuda) comes close to the reef to be cleaned by a cleaner wrasse, Hawaii, United States of America, Pacific, North America

A bluestreak cleaner wrasse searching the mouth of a clown sweetlips for parasites, Yap, Micronesia, Pacific

A plumed scorpionfish (Scorpaena grandicornis), off Singer Island in Florida, United States of America, North America

Malachite kingfisher (Corythornis cristatus), Chobe National Park, Botswana, Africa

Atlantic bottlenose dolphins (Tursiops truncatus), feeding on small fish, United States of America, North America

A cleaner shrimp (Lysmata amboinensis) inspecting a honeycomb moray eel (Gymnothorax favageneus), Philippines, Southeast Asia, Asia

The very capable teeth in the jaw of a stout moray (Gymnothorax eurostus), Hawaii, United States of America, Pacific, North America

A Galapagos shark (Carcharhinus galapagensis), breaching the surface, Hawaii, United States of America, Pacific, North America

A great white shark (Carcharodon carcharias), breaks the surface off Guadalupe Island, Mexico, North America

Kari kepala ikan (fish head soup), teh tarik (pulled tea) and fruit juice, Kuala Lumpur, Malaysia, Southeast Asia, Asia

Black stork (Ciconia nigra) with a fish, Kruger National Park, South Africa, Africa

Helvick Head Pier, County Waterford, Munster, Republic of Ireland, Europe

White-eyed Moray, Sidera prosopeion, Ambon, Moluccas, Indonesia

Lionfish, Pterois volitans, Triton Bay, West Papua, Indonesia

Tassled scorpionfish (smallscale scorpionfish) (Scorpaenopsis oxycephala), has an array of venomous spines, Matangi Island, Vanua Levu, Fiji, Pacific

Reef Stonefish, Synanceia verrucosa, Osprey Reef, Coral Sea, Australia

Ribbon Eel, Rhinomuraena quaesita, Ambon, Moluccas, Indonesia

White-eyed Moray, Sidera prosopeion, Ambon, Moluccas, Indonesia

Ribbon Eel, Rhinomuraena quaesita, Ambon, Moluccas, Indonesia

Pied kingfisher (Ceryle rudis) with fish, Kruger National Park, South Africa, Africa

Honey-head Damsel, Dischistodus prosopotaenia, Russell Islands, Solomon Islands

Red-bellied Piranha, Piranha vermelha, Brazil

Saddle-billed stork (Ephippiorhynchus senegalensis) with a fish, Kruger National Park, South Africa, Africa

White Moray, Gymnothorax sp., Ambon, Moluccas, Indonesia

Saddle-billed stork (Ephippiorhynchus senegalensis) with a fish, Kruger National Park, South Africa, Africa

Ribbon Eel, Rhinomuraena quaesita, Ambon, Moluccas, Indonesia

White-eyed Moray, Sidera prosopeion, Ambon, Moluccas, Indonesia

Pygmy Sweepers surrounding Coral Reef, Parapriacanthus ransonneti, Raja Ampat, West Papua, Indonesia

Ribbon Eel, Rhinomuraena quaesita, Ambon, Moluccas, Indonesia

A Black-finned snake eel (Ophichthus cephalozona) pokes its head out of a sandy seafloor in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

A school of sweetlip fish stacked up against a coral head, Maldives.

Adult brown pelican (Pelecanus occidentalis), plunge diving for fish, Isla Carmen, Baja California Sur, Mexico, North America

An adult mudskipper, subfamily Oxudercinae, in mud burrow on the mud flats of Vansittart Bay, Kimberley, Western Australia, Australia, Pacific

An adult mudskipper, subfamily Oxudercinae, in mud burrow on the mud flats of Vansittart Bay, Kimberley, Western Australia, Australia, Pacific

Yellowmargin moray eel (Gymnothorax flavimarginatus), Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

Adult elegant tern (Thalasseus elegans), looking for fish on Isla Carmen, Baja California Sur, Sea of Cortez, Mexico, North America

An adult mudskipper, subfamily Oxudercinae, in mud burrow on the mud flats of Vansittart Bay, Kimberley, Western Australia, Australia, Pacific

Humbug Dascyllus (Dascyllus aruanus), in stag horn coral head on Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

A school of razorfish (Aeoliscus strigatus), head down posture on the house reef at Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

A school of razorfish (Aeoliscus strigatus), head down posture on the house reef at Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

A school of razorfish (Aeoliscus strigatus), head down posture at night on Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

A school of jointed razorfish (Aeoliscus strigatus), in their usual head down formation, off Bangka Island, Indonesia, Southeast Asia, Asia

Pile of fish heads at the fish market in Puerto Azorra, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

A school of jointed razorfish (Aeoliscus strigatus) in their usual head down formation, off Bangka Island, Indonesia, Southeast Asia, Asia

Saddle-billed stork (Ephippiorhynchus senegalensis) with a fish, Kruger National Park, South Africa, Africa

Interior view of fishmongers stall in Central Market, Monastiraki District, Athens, Greece, Europe

Fish market at Ponte di Rialto, Venice, Veneto, Italy, Europe

Jabiru (Jabiru mycteria) fishing and harassed by mosquitos, Pantanal, Mato Grosso, Brazil, South America

Stockfish cod drying on traditional racks, hjell, in the Arctic Circle on the island of Ringvassoya in region of Tromso, Northern Norway

Stockfish cod drying on traditional racks, hjell, in the Arctic Circle on the island of Ringvassoya in region of Tromso, Northern Norway

Stockfish cod drying on traditional racks, hjell, in the Arctic Circle on the island of Ringvassoya in region of Tromso, Northern Norway

Stockfish cod drying on traditional racks, hjell, in the Arctic Circle on the island of Ringvassoya in region of Tromso, Northern Norway

Stockfish cod drying on traditional racks, hjell, in the Arctic Circle on the island of Ringvassoya in region of Tromso, Northern Norway

Fishermen landing swordfish at the fishmarket in Tangier, Morocco, North Africa, Africa

Fish restaurant, Shinjuku, Tokyo, Honshu, Japan, Asia

Traditional Japanese meal of sushi and fish head, Tokyo, Honshu Island, Japan, Asia

Close-up of rock hind (Epinephelus adscensionis), Sabah, Malaysia, Borneo, Southeast Asia, Asia

Nile tiger fish. Hydrocynus forskalii. Close-up of head. Okavango river, botswana

Tomato anemonefish (Amphiprion frenatus), Gau, Lomaiviti, Fiji, Pacific

Woman carrying fish on her head, Majunga, Madagascar, Africa

Tomato anemonefish (Amphiprion frenatus), Gau, Lomaiviti, Fiji, Pacific

Double-saddle butterflyfish (Chaetodon ulietensis), feeding on fish head, Beqa Lagoon, Viti Levu, Fiji, South Pacific, Pacific

Spotted Gar (Lepisosteus oculatus), Florida, United States of America, North America

Spotted Gar (Lepisosteus oculatus), Florida, United States of America, North America

The result of a strong head slap of a Minke whale (Balaenoptera acutorostrata). Such a splash supposedly scares shoaling fish that are known to cluster when threatened. St. Lawrence estuary, Canada

Arapaima (pirarucu) (Arapaima gigas) in captivity, the largest freshwater fish, found in the Amazon river basin, mainly in Brazil, South America

Red snapper (Lutjanus bohar), Rongelap, Marshall Islands, Micronesia, Pacific

Pintado (speckled catfish) (Pseudoplatystoma corruscans), Pantanal, Mato Grosso do Sul, Brazil, South America

Large male Mozambique tilapia (Oreochromis mossambicus), Hawaii Institute of Marine Biology, Kaneohe, Oahu, Hawaii, United States of America, Pacific

Puddingwife wrasse (Halichoeres radiatus), St. Peter and St. Paul's rocks, Brazil, South America

Tawny nurse shark (Nebrius ferrugineus) head detail, Jaboan, Rongelap, Marshall Islands, Micronesia, Pacific

Head detail of parrotfish (Sparisoma sp.) sleeping, Ponta da Sapata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil, South America

Giant frogfish (Antennarius commersoni), black phase, head detail, Puerto Galera, Mindoro, Philippines, Southeast Asia, Asia

Large male Mozambique tilapia (Oreochromis mossambicus), Hawaii Institute of Marine Biology, Kaneohe, Oahu, Hawaii, United States of America, Pacific

Arapaima (pirarucu) (Arapaima gigas) in captivity, the largest freshwater fish, found in the Amazon river basin, mainly in Brazil, South America

Moray eel (Muraena pavonina), St. Peter and St. Paul's rocks, Brazil, South America

Snake eel, head out of sand (Pisonophis cancivorus). Indo Pacific

Royal Gramma or Fairy Basslet (Gramma loreto) beautifil yellow fish with brilliant purple head, Cayman Brac, Cayman Islands, Caribbean

Bigeye Snapper (Priacanthus hamrur) red fish with large black eye swimming diagonally with head in profile, Tahiti, French Polynesia Underwater.

Queen angelfish (Holacanthus ciliaris), profile of head, showing brilliant colour markings, Cayman Islands, Caribbean

Bearded Scorpionfish (Scorpaenopsis barbatus) detail of head,Raiatia, French Polynesia

Wolf fish (Anarhichas lupus), head in profile with mouth open, St Abbs, Scotland, UK North Sea

Chinstrap penguin (Pygoscelis antarctica) chick head detail at colony on Useful Island near the Antarctic Peninsula. There are an estimated 2 million breeding pairs of chinstrap penguins in the Antarctic peninsula region alone, perhaps as many as 7.5 million breeding pairs in all of Antarctica. Their name derives from the narrow black band under their heads which makes it appear as if they are wearing black helmets, making them one of the most easily identified types of penguin. Other names for them are "Ringed Penguins", "Bearded Penguins", and "Stonecracker Penguins" due to their harsh call. They grow to 68 cm (27 in). The average adult weight of a Chinstrap Penguin is 4.5 kg (10 lbs). Weight can range from 3 to 6 kg (6.6-13.2 lbs), with males being slightly larger and weight varying based on where the penguin is in the breeding cycle. Their diet consists of krill, shrimp, and fish. On land they build circular nests from stones, and lay two eggs, which are incubated by both the male and the female for shifts of five to ten days. They can also breed on icebergs, though they prefer non-icy conditions. The chicks hatch after about 35 days, and have fluffy gray backs and white fronts. The chicks stay in the nest for 20?30 days before they go to join a creche. At around 50?60 days old, they moult, gaining their adult plumage and go to sea. The Chinstrap Penguin was first described by German naturalist Forster in 1781. Its specific epithet was often seen as antarctica, however a 2002 review determined the genus Pygoscelis was masculine, and hence the correct binomial name is Pygoscelis antarcticus.

Jumbo Squid (Dosidicus gigas) eye and head detail. Mexican panga fishery in Santa Rosalia, Baja, Mexico

basking shark feeding in the UK,