Tony Wu / Humpback whale (Megaptera novaeangliae) pursuing Herring (Clupea sp) school. Hamn, Senja, Norway. January.

Tony Wu / Humpback whale (Megaptera novaeangliae australis) with calf, female resting at surface, calf playing. Vava'u, Tonga.

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) juvenile aged two years, in fifth instar, beside 5 Yen coin for scale. Endangered species due to habitat loss and over-harvesting for food and biochem...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) juvenile aged two years, in fifth instar. Endangered species due to habitat loss and over-harvesting for food and biochemical industry. Yamaguchi Pref...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair on sea floor at night. Female searching for location to spawn, male clasped onto rear of female will fertilise eggs once deposited. Yamaguchi Pre...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) male fertilising eggs deposited by female in substrate. Female crab buried on sea floor beneath male. Yamaguchi Prefecture, Honshu, Japan. July.

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair on sea floor at night. Female digging into substrate before depositing eggs, male clasped onto rear of female to fertilise eggs once deposited. Y...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair on sea floor at night. Female digging into substrate before depositing eggs, male clasped onto rear of female to fertilise eggs once deposited. Y...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair on sea floor at night. Male clasped onto rear of female, male fertilising eggs female has deposited in substrate. Yamaguchi Prefecture, Honshu, J...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair on sea floor at night. Female digging before depositing eggs, disturbance releases air bubbles from substrate. Male clasped onto rear of female w...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair walking across sea floor at night. Female searching for location to spawn, male clasped onto rear of female to fertilise eggs once deposited. Sna...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair on sea floor at night. Female digging before depositing eggs, disturbance releases air bubbles from substrate. Male clasped onto rear of female w...

Tony Wu / Tri-spine horseshoe crab (Tachypleus tridentatus) pair walking across sea floor at night. Female searching for location to spawn, male clasped onto rear of female to fertilise eggs once deposited. Yam...

Tony Wu / Jawfish (Opistognathus iyonis) male mouth brooding eggs, which are hatching with juveniles swimming away. Yamaguchi Prefecture, Honshu, Japan. July.

Danny Green / Beaver (Castor fiber) kits feeding on vegetation. Finland, July.

Danny Green / Beaver (Castor fiber) two adults grooming each other, Finland, July.

Danny Green / Beaver (Castor fiber) adult swimming, Finland, July.

Danny Green / Beaver (Castor fiber) adult feeding along the waters edge. Finland, July.

Danny Green / European river otters (Lutra lutra) reflection in the water at night. Lincolnshire, UK, September.

Danny Green / European river otter (Lutra lutra) and reflection at night. Lincolnshire, UK, July.

Danny Green / European river otter (Lutra lutra) at night. Lincolnshire, UK, September.

Danny Green / European river otter (Lutra lutra) at night. Lincolnshire, UK, September.

Danny Green / European river otter (Lutra lutra) reflected in water at night. Lincolnshire, UK, September.

Danny Green / European river otter (Lutra lutra) reflected in water at night. Lincolnshire, UK, September.

Danny Green / European river otter (Lutra lutra) in mist reflected in water at night. Lincolnshire, UK, September.

Danny Green / European river otter (Lutra lutra) reflected in water at night. Lincolnshire, UK, September.

Danny Green / Grey Heron (Ardea cinerea) at night. Lincolnshire, UK, September.

Danny Green / Grey Heron (Ardea cinerea) at night. Lincolnshire, UK, September.

Staffan Widstrand / Slavonian grebe (Podiceps auritus) Kyrkbosjon, Bromma, Stockholm, Sweden

Staffan Widstrand / Slavonian grebe (Podiceps auritus) Kyrkbosjon, Bromma, Stockholm, Sweden

Staffan Widstrand / Slavonian grebe (Podiceps auritus) Kyrkbosjon, Bromma, Stockholm, Sweden

Staffan Widstrand / Slavonian grebe (Podiceps auritus) Kyrkbosjon, Bromma, Stockholm, Sweden

Staffan Widstrand / Slavonian grebe (Podiceps auritus) Kyrkbosjon, Bromma, Stockholm, Sweden

Staffan Widstrand / Eurasian coot (Fulica atra) Kyrkbosjon, Bromma, Stockholm, Sweden

Staffan Widstrand / Slavonian grebe (Podiceps auritus) Kyrkbosjon, Bromma, Stockholm, Sweden

Sirachai Arunrugstitchai / Fisherman swimming along the nets to rig it up with rope from the commercial purse seiner. Prior to pulling in the catch. Andaman Sea,Thailand, Krabi Province, Thailand, December 2015.

Sirachai Arunrugstitchai / Variety of marine life from the Andaman Sea struggling in the nets from a purse seiner, Krabi Province, Thailand, December 2015.

Sirachai Arunrugstitchai / Variety of marine life from the Andaman Sea are seen struggling in the nets from a purse seiner, Krabi Province, Thailand, December 2015.

Sirachai Arunrugstitchai / Variety of marine life from the Andaman Sea are seen struggling in the nets from a purse seiner, Krabi Province, Thailand, December 2015.

Sirachai Arunrugstitchai / Starry puffer (Arothron stellatus) is seen floating at the surface after being discarded as bycatch from a commercial purse seiner, Andaman Sea, Thailand, Krabi Province, Thailand, December 2015.

Sirachai Arunrugstitchai / Giant devil ray (Mobula mobular) caught by a commercial purse seiner, prior to release back into the sea, Andaman Sea, Thailand, Krabi Province, Thailand, December 2015.

Sirachai Arunrugstitchai / Bobbit worm extending its head from its burrow in the sandy seabed, waiting to ambush prey, Satun province, Thailand

Sirachai Arunrugstitchai / Tourist poses for a photo shoot with image of a Great white shark (Carcharodon carcharias) at Phuket Trickeye Museum, Phuket Province, Thailand, December 2015

Sirachai Arunrugstitchai / Fish cage with fish trapped inside. Illuminated by the light from diver's torch at the seabed in the southern Andaman Sea, Satun province, Thailand, February 2017.

Sirachai Arunrugstitchai / Large colonies of Gorgonian sea fan (Melithea sp.) with an unusual white colouration, not related to coral bleaching. With a school of Bigeye snapper (Lutjanus lutjanus) at Hin Khao, Andaman coast, Sa...

Sirachai Arunrugstitchai / Brownbanded bamboo sharks (Chiloscyllium punctatum) seen in a small captive tank at a seafood market, Chonburi Province, Thailand, January 2016.

Sirachai Arunrugstitchai / Brownbanded bamboo shark (Chiloscyllium punctatum) swimming along the sandy bottom in the reefs in the Northern Gulf of Thailand, Chonburi Province, Thailand,.

Sirachai Arunrugstitchai / Bottlenose wedgefish (Rhynchobatus australiae) juvenile that was caught as bycatch in gill nets, handled while being held in captive pond, Chonburi Province, Thailand, March

Sirachai Arunrugstitchai / Shark fins drying in baskets on the street of Hong Kong Island, June 2019.

Sirachai Arunrugstitchai / Various species of Sea cucumber are dried in baskets on the street of Hong Kong Island, June 2019.

Sirachai Arunrugstitchai / Dried Japanese sea cucumbers (Apostichopus japonicus). This highly prized species can cost over US$3500 per kg. Displayed for sales at a store in Hong Kong Island, 2019.

Sirachai Arunrugstitchai / Dried shark fins are displayed in a dried goods shop in Hong Kong Island,June 2019.

Sirachai Arunrugstitchai / Tawny nurse shark (Nebrius ferrugineus) in the evening at Alimatha Jetty,. where sharks are often attracted by fish scraps discarded by the island resort, Felidhu Atoll, Republic of Maldives, January...

Sirachai Arunrugstitchai / Caretaker from the 'Dugong Guards', a local volunteer group holding 'Marium', an orphaned Dugong (Dugong dugon) that was rescued from stranding, Koh Libong Island, Trang Province, Thai...

Sirachai Arunrugstitchai / Group of tourists with colourful kayaks entering a small beach surrounded by jagged karst formation of Prasat Hin Phanyod. An ecotourism destination managed by local community in Mu Koh Phetra Nationa...

Sirachai Arunrugstitchai / Fishermen unload purse seiner catch from Andaman Sea onto the pier, Thailand, April 2017.

Sirachai Arunrugstitchai / Fisherman scooping up the fish in the fish storage area on a purse seiner, Andaman Sea, Satun province, Thailand, April 2017.

Sirachai Arunrugstitchai / Fisherman sitting on a bucket in the fish storage area on a purse seiner. Waiting for the water to be drained prior unloading the fish, Andaman Sea, Satun province, Thailand, April 2017.

Sirachai Arunrugstitchai / Pakbara soldier crab (Micteris thailandensis) standing among excavated sand balls near its burrow. At a rivermouth in Pakbara district, Satun province, Thailand. Species described in 2013.

Sirachai Arunrugstitchai / Pakbara soldier crab (Micteris thailandensis) making sand balls while excavating its burrow in a rivermouth in Pakbara district, Satun province, Thailand. Species described in 2013.

Sirachai Arunrugstitchai / Staghorn corals (Acropora sp.) at sunrise in the intertidal zone are seen below the water surface during low tide, Koh Bulon Lae Island, Mu Koh Phetra National Park, Thailand.

Sirachai Arunrugstitchai / Healthy Staghorn corals (Acropora sp.) with various reef fishes, including Moon wrasses (Thalassoma lunare), and Threespot dascyllus (Dascyllus trimaculatus) and a large school of Bigeye snappers (Lut...

Sirachai Arunrugstitchai / Urak Lawoi (Orang Laut) diver in his crudely made compressor diving equipment lifting a fish trap. Koh Talang Island, Mu Koh Tarutao National Park, Satun Province, Thailand.

Sirachai Arunrugstitchai / Two Urak Lawoi (Orang Laut) divers in compressor diving equipment lifting a fish trap. Koh Talang Island, Mu Koh Tarutao National ParkThailand

Sirachai Arunrugstitchai / Indo-Pacific sailfish (Istiophorus platypterus) bleeding. Pulled onto a longtail boat with a hook by an artisanal fisherman, Satun Province, Thailand, May 6, 2017.

Sirachai Arunrugstitchai / Indo-Pacific sailfish (Istiophorus platypterus) pulled onto a longtail boat with a hook by a fisherman, Satun Province, Thailand

Sirachai Arunrugstitchai / Indo-Pacific horseshoe crabs (Tachypleus gigas) mate in the sandy substrate, Satun province, Thailand.

Sirachai Arunrugstitchai / Black-banded demoiselle (Amblypomacentrus breviceps) peeking out from a algae-covered glass bottle on the sea floor, Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Oriental bluespotted maskray (Neotrygon orientalae), a newly described maskray from the Neotrygon kuhlii species complex prowls on the sandy bottom in search for food, Lembeh Strait, North Sulawesi, I...

Sirachai Arunrugstitchai / Ribbon eel (Rhinomuraena quaesita) adult male, protudes from crevices in the sandy bottom, Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Close up details of the polyps of Galaxy coral (Galaxea fascicularis), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Longhorn cowfish (Lactoria cornuta) juvenile foraging for food along the seafloor during the night, Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Coconut octopus (Amphioctopus marginatus) crawling along the seafloor during the night, Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Wire coral goby (Bryaninops yongei) resting on its host Wire coral (Cirrhipathes), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Close up photo the expanding polyps of Soft coral (Alcyonacea), which the animal uses for capturing food in the water column, Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Close up details of the polyps of closed Brain coral (Favites sp.), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Close up details of the tip of the polyps of Table coral (Acropora sp.), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Close up details of the arms of white Feather star (Crinoidea), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Coconut octopus (Amphioctopus marginatus) crawling along the seafloor, while carrying a shell of bivalve, which it uses as shelter, Lembeh Strait, North Sulawesi, Indonesia

Sirachai Arunrugstitchai / Longhorn cowfish (Lactoria cornuta) swimming in the dark water during the night, Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Shortspine Porcupinefish (Cyclichthys orbicularis) on sandy bottom at night, Lembeh Strait, North Sulawesi, Indonesia.7.

Loic Poidevin / Northern shoveler (Spatula clypeata) mother and young, Marais / Marsh Vendee, France, June.

Loic Poidevin / Mute swan (Cygnus olor) Vendee, France, May.

Loic Poidevin / Digger used to maintain drainage ditch, Vendee, France,July

Sirachai Arunrugstitchai / Oriental bluespotted maskray (Neotrygon orientalae), at night, newly described maskray from the Neotrygon kuhlii species complex prowls on the sandy bottom in search for food, Lembeh Strait, North Sul...

Sirachai Arunrugstitchai / School of Sunburst butterflyfishes (Chaetodon kleinii) swoop in to feed on the eggs of Sergeant major (Abudefduf saxatilis) Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / School of Sunburst butterflyfishes (Chaetodon kleinii) swimming along the reefs, while waiting to feed on the eggs of Sergeant major (Abudefduf saxatilis), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Close up details of the tentacles of a Sebae anemone (Heteractis crispa), Lembeh Strait, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Pink skunk clownfish (Amphiprion aperideraion) hiding among tentacles of a Sebae anemone (Heteractis crispa), where these two species have a symbiotic relationship, Lembeh Strait, North Sulawesi, Indo...

Sirachai Arunrugstitchai / Green sea turtle (Chelonia mydas) with a pair of Live sharksucker (Echeneis naucrates) swimming along the reef drop-off at Bunaken Island, Bunaken National Marine Park, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Algae-covered rubble made from coral fragments on the seafloor, Bunaken Island, Bunaken National Marine Park, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Field of Elephant skin corals (Pachyseris sp.) in the reefs at Bunaken Island, Bunaken National Marine Park, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Hawksbill sea turtle (Eretmochelys imbricata) swimming along the reefs of Bunaken Island, Bunaken National Marine Park, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Horned sea star (Protoreaster nodosus) in seagrass bed at Bunaken Island, Bunaken National Marine Park, North Sulawesi, Indonesia.

Sirachai Arunrugstitchai / Freshwater spring in shade from thick forest canopy at Tha Pom Khlong Song Nam, with school of Rasbora (Rasbora sp.) and vegetations can be seen below the surface, Krabi Province, Thailand.

Sirachai Arunrugstitchai / Freshwater crab species (unidentified), burrows into the substrate in the root system of a tree at Tha Pom Khlong Song Nam, Krabi Province, Thailand