Ismaele Tortella / Eurasian otter (Lutra lutra) hunting in a shoal of Atlantic herring (Clupea harengus), northern Norway, March

Diane McAllister / Polar bears (Ursus maritimus) fighting in water. Beaufort Sea , Kaktovik, Alaska, USA. Highly commended in the Polar Passion category of the Nature's Best Photography Competition 2019.

Alex Mustard / Yellowtail tang (Zebrasoma xanthurum) male and female turn belly to belly during spawning to ensure fertilization. Temple, Ras Umm Sid, Sharm El Sheikh, Sinai, Egypt. Red Sea. This action is very fast...

Claudio Contreras / Californian sea lion (Zalophus californianus) swimming in Southern sea palm (Eisenia arborea) and Giant Kelp (Macrocystis pyrifera) forest, San Benitos Islands, Baja California Pacific Islands Biosphe...

Ismaele Tortella / Pod of Killer whales (Orcinus orca) at the surface, northern Norway, November.

Ismaele Tortella / Pod of Killer whales (Orcinus orca) at the surface, northern Norway, November.

Ismaele Tortella / Pod of Killer whales (Orcinus orca) spyhopping, northern Norway, January 2019

Ismaele Tortella / Pod of Killer whales (Orcinus orca) surfacing, northern Norway, January 2019

Ismaele Tortella / Winter landscape of Sommaroy island, close to Tromso, Norway, February 2019.

Ismaele Tortella / Aerial shot of two Humback whales (Megaptera novaeangliae) surfacing, northern Norway, November.

Ismaele Tortella / Aerial shot of two Humback whales (Megaptera novaeangliae) diving, northern Norway, November.

Pascal Kobeh / Parrotfish (Scarus / Chlorurus sp.) sleeping at night, New Caledonia, Pacific Ocean.

Peter Lewis / Starling (Sturnus vulgaris) murmuration at sunset, West Pier, Brighton, England, UK.

Pascal Kobeh / White tip shark (Triaenodon obesus) laying on the sandy bottom, New Caledonia, Pacific Ocean.

Pascal Kobeh / Hard coral (Porites lutea) with Christmas-tree worms (Spirobranchus giganteus), New Caledonia, Pacific Ocean.

Pascal Kobeh / Cup coral (Turbinaria mesenterina) housing Blackblotch or blackspot squirrelfish (Sargocentron melanospilos) and a longfin bannerfish (Heniochus acuminatus), New Caledonia, Pacific Ocean.

Pascal Kobeh / Limestone formations are reflected on the surface in Luengoni fresh water cave, Lifou with a diver in the background, New Caledonia, Pacific Ocean.

Pascal Kobeh / Pair of courting Egg-eating / Turtleheaded sea snakes (Emydocephalus annulatus) New Caledonia, Pacific Ocean.

Pascal Kobeh / Pair of courting Egg-eating / Turtleheaded sea snakes (Emydocephalus annulatus) New Caledonia, Pacific Ocean.

Pascal Kobeh / Pair of courting Egg-eating / Turtleheaded sea snakes (Emydocephalus annulatus) New Caledonia, Pacific Ocean.

Pascal Kobeh / Pair of courting Egg-eating sea snakes / Turtleheaded sea snakes (Emydocephalus annulatus) New Caledonia, Pacific Ocean.

Pascal Kobeh / Zebra / Leopard shark (Stegostoma varium) swimming away from the bottom, New Caledonia, Pacific Ocean.

Pascal Kobeh / Zebra / Leopard shark (Stegostoma varium) swimming away from the bottom, New Caledonia, Pacific Ocean.

Pascal Kobeh / Close-up of a Egg-eating / Turtleheaded sea snake (Emydocephalus annulatus) with eggs coming out of its mouth, New Caledonia, Pacific Ocean.

Pascal Kobeh / Three Pygmy seahorses (Hippocampus bargibanti) on a Seafan / Gorgonian (Muricella sp) including one or several pregnant males. New Caledonia, Pacific Ocean

Pascal Kobeh / Four Pygmy seahorses (Hippocampus bargibanti) on a Seafan / Gorgonian (Muricella sp. ) including one or several pregnant males. New Caledonia, Pacific Ocean.

Pascal Kobeh / Graysby seabass (Cephalopholis cruentata) on the reef, Yucatan peninsula, Mexico, Caribbean.

Pascal Kobeh / School of white margates or white grunts (Haemulon album) Yucatan peninsula, Mexico.

Pascal Kobeh / Close-up of a school of bluestriped or boar grunts (Haemulon sciurus) Yucatan peninsula, Mexico, Caribbean.

Pascal Kobeh / Goldentail moray (Gymnothorax miliaris) Cozumel Island, Yucatan peninsula, Mexico.

Pascal Kobeh / Queen angelfish or blue or golden angelfish (Holacanthus ciliaris) Cozumel Island, Yucatan peninsula, Mexico.

Pascal Kobeh / Group of Grey seals (Halichoerus grypus grypus) resting on a rock around Bonaventure Island, Gulf of Saint Lawrence, Canada

Pascal Kobeh / Reef covered with two red Stomphia sea anemones (Stomphia coccinea), with Plumose anemones (Metridium senile), Red soft corals (Eunephthya / Gersemia rubiformis) and Green sea urchins (Strongylocentro...

Pascal Kobeh / Diver on a reef covered with Plumose anemones (Metridium senile) Gulf of Saint Lawrence, Canada

Pascal Kobeh / Reef covered with Clams (Mesodesma arctatum) and Common starfish (Asterias rubens) Gulf of Saint Lawrence, Canada

Pascal Kobeh / Atlantic / Common rock crab (Cancer irroratus) on the reef in the middle of green sea urchins (Strongylocentrotus droebachiensis) Gulf of Saint Lawrence, Canada

Pascal Kobeh / Atlantic rock crab or common rock crab (Cancer irroratus) on the reef, Gulf of Saint Lawrence, Canada.

Pascal Kobeh / Two Atlantic / American lobsters (Homarus americanus) fighting, Gulf of Saint Lawrence, Canada

Pascal Kobeh / Atlantic / American lobster (Homarus americanus) Gulf of Saint Lawrence, Canada

Pascal Kobeh / Atlantic / American lobster (Homarus americanus) with a Grey seal (Halichoerus grypus ) swimming in the background, Gulf of Saint Lawrence, Canada

Pascal Kobeh / Grey seal (Halichoerus grypus grypus) underwater, Gulf of Saint Lawrence, Canada

Pascal Kobeh / Natural basin in Oro Bay, Ile des Pins, with the New Caledonia pines (Araucaria columnaris) that gave the name to the island, New Caledonia, Pacific Ocean.

Pascal Kobeh / Coast of l'Île-des-Pins with the New Caledonia pines (Araucaria columnaris) that gave the name to the island at sunset, New Caledonia, Pacific Ocean.

Pascal Kobeh / Glorious flatworm (Pseudobiceros gloriosus) New Caledonia, Pacific Ocean.

Pascal Kobeh / Bubble-coral (Plerogyra sp.) New Caledonia, Pacific Ocean.

Pascal Kobeh / Scorpion shell / Scorpion spider conch (Lambis scorpius) New Caledonia, Pacific Ocean.

Pascal Kobeh / Sea slug or nudibranch (Ardeadoris / Glossodoris cruenta) New Caledonia, Pacific Ocean.

Pascal Kobeh / Red spotted coral crab (Trapezia rufopunctata) hidden in a hard coral (Pocillopora sp.) New Caledonia, Pacific Ocean.

Pascal Kobeh / Coleman's bubble coral shrimp (Vir colemani) with its eggs in a bubble-coral (Plerogyra sinuoasa) where it is protected, New Caledonia, Pacific Ocean Completed Review

Pascal Kobeh / Océan Pacifique - Nouvelle calédonie - Gros plan de la tête d'un nason licorne (Naso brevirostris) de nuit Pacific Ocean - New Caledonia - A close-up of the head of a spotted or longnose unicornf...

Pascal Kobeh / Diver on a coral reef behind bloodred seafans / gorgonians (Melithaea sp. / Subergorgia sp.) New Caledonia, Pacific Ocean.

Pascal Kobeh / Diver on a coral reef behind Blood red sea fans / gorgonians (Melithaea sp. / Subergorgia sp.) New Caledonia, Pacific Ocean

Oscar Dewhurst / Brahminy kite (Haliastur indus) in flight over sea, catching fish in coastal waters. Goa, India.

Oscar Dewhurst / Brahminy kite (Haliastur indus) in flight over sea, catching fish in coastal waters. Goa, India.

Hanne & Jens Eriksen / Common greenshank (Tringa nebularia) on beach, near water's edge. Oman, November.

Hanne & Jens Eriksen / Ruddy turnstone (Arenaria interpres) in flight over sea. Oman, November.

Hanne & Jens Eriksen / Persian shearwater (Puffinus persicus) taking off, running over water. Oman, October.

Nigel Cattlin / View from Golden Cap, looking east across National Trust land to Seatown, West Bay and Chesil Beach. Jurassic Coast, Dorset, England, UK. May.

Nigel Cattlin / Southwest coast path through National Trust's Golden Cap Estate, looking west towards Charmouth. Lyme Bay, Dorset, England, UK. May 2017.

Nigel Cattlin / English stonecrop (Sedum anglicum), mat of plants on shingle with Sea kale (Crambe maritima) in background, Chesil Beach, Dorset, England, UK. May.

Nigel Cattlin / Woman selling live fresh Fish and Shellfish in plastic baskets tethered to boat. Ha Llong Bay, Quang Ninh Province, Vietnam. 2016.

Nigel Cattlin / Tourists and boats at Maya Beach, limestone rock cliffs in background. Koh Phi Phi Leh, Krabi Province, Thailand. 2015.

David Allemand / Northern fulmar (Fulmarus glacialis) in flight with waves, Arctic Sea. Commended in the Biophoto Competition 2019.

Alex Mustard / Scalefin anthias (Pseudanthias squamipinnis) male with a long exposure. Ras Katy, Sharm El Shiekh, Sinai, Egypt. Red Sea. Commended in the GDT Photography competition 2019.

Alex Mustard / Black and white photo of school of Bigeye trevally (Caranx sexfasciatus) form a circular shoal in open water, on the drop off of a coral reef. Ras Mohammed National Park, Sinai, Egypt. Red Sea. Highly...

Nick Upton / Young Edible crab (Cancer pagurus) and a Rock goby (Gobius paganellus) side by side in a rock pool, looking towards the camera, The Gower, Wales, UK, August.

Richard Du Toit / Wave breaking, Western Cape, South Africa

Edwin Giesbers / Grey seal (Halichoerus grypus) male and female, mating behaviour, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus) male and female, mating behaviour, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus) hauled out on beach. Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus) hauled out by lighthouse, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus) in water. Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus) in water. Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), mother with suckling pup. Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), mother playing with pup, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), pup on beach, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), male and female mating on beach. Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus),female giving birth, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), mother with newborn pup, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), mother with newborn pup, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), mother with pup, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), male, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus) hauled out near lighthouse, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), male and female, mating behaviour, Heligoland, Germany.

Edwin Giesbers / RF - Grey seal (Halichoerus grypus) male and playing in shallow sea, mating behaviour, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), male and female, mating behaviour, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), male and female, mating behaviour, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), male and female, mating behaviour, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), tourist looking for seals, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), sleeping, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus), sleeping, Heligoland, Germany.

Edwin Giesbers / Grey seal (Halichoerus grypus) male and female courting on beach, Heligoland, Germany.

John Shaw / Iceberg and reflection, in Rode Fjord (Red Fjord), Scoresby Sund, Greenland, August.

John Shaw / Iceberg and reflection, in Rode Fjord (Red Fjord), Scoresby Sund, Greenland, August.

John Shaw / Autumn tundra colors on the hills in Rode Fjord (Red Fjord), Scoresby Sund, Greenland, August.

John Shaw / Tundra plants in autumn with Dwarf birch (Dwarf birch) and Bearberry (Arctostaphylos), Rypefjord (Ptarmigan Fjord), Scoresby Sund, Greenland, August.