David Fleetham / Hawksbill Turtle (Eretmochelys imbricata) and a shoal of fish near sea surface. Tubbataha Reef, Philippines.

Danny Green / Polar bear (Ursus maritimus) hunting Seal on sea ice. Svalbard, Norway, July 2018.

Alex Mustard / Dugong (Dugong dugon) male and juvenile Golden trevally (Gnathanodon speciosus) swimming over Seagrass (Halophila stipulacea) meadow. Marsa Nabaa, Marsa Alam, Egypt.

Alex Mustard / Green turtle (Chelonia mydas) resting on sea floor and two juvenile Golden trevally (Gnathanodon speciosus). Marsa El Shouna, Marsa Alam, Egypt.

Gary Bell/ Oceanwide / Double-headed Maori Wrasse (Cheilinus undulatus), Painted Sweetlips (Diagramma pictum), and Slender Cardinalfish (Rhabdamia gracilis) school, Great Barrier Reef, Queensland, Australia

Piotr Naskrecki / Termite (Macrotermes mossambicus) winged individual on pile of wings shed by other termites, with winged male Carpenter ants (Camponotus). Gorongosa National Park, Mozambique. Highly commended in the...

Alex Mustard / Three Pink anemonefish (Amphiprion perideraion) living in a purple skirted magnificent sea anemone (Heteractis magnifica) on a coral reef, below a small island. Misool, Raja Ampat, West Papua, Indones...

Alex Mustard / Blacktip reef shark (Carcharhinus melanopterus) swims through schools of fish. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Pacific Ocean.

Nick Upton / Juvenile Goldenrod spider (Misumena vatia) camouflaged on a Common hogweed (Heracleum sphondylium) flowerhead, reacting to and catching a fly (Muscidae), Wiltshire, England, UK, June.

Nick Upton / Six-spot burnet moth (Zygaena filipendulae), Marbled white butterflies (Melanargia galathea) and a Dark green fritillary (Argynnis aglaja) nectaring on a clump of Greater knapweed flowers (Centaurea s...

Jack Dykinga / Sandhill cranes (Antigone canadensis) and Snow geese (Chen caerulescens) at sunrise, Bosque del Apache National Wildlife Refuge, New Mexico, USA, November.

Jack Dykinga / Bald eagle (Haliaeetus leucocephalus) perched as Snow geese (Chen caerulescens) fly by, Bosque del Apache National Wildlife Refuge, New Mexico, USA, January.

John Chan / California brown pelicans (Pelecanus occidentalis californicus) roosting on a mudflat, with a flock of Elegant terns (Thalasseus elegans) nearby, Southern California, USA May/2019

John Shaw / Brown bear (Ursus arctos) searching for clams on tidal mudflat with waterbirds. Lake Clark National Park, Alaska. August.

Shane Gross / Bubble coral shrimp (Vir philippinensis) on Bubble coral (Plerogyra sp). Anilao, Philippines.

Espen Bergersen / Humpback whale (Megaptera novaeangliae) diving. In background a diving boat and 3 divers visible in the water. Kvanangen, Troms, Norway. November

Espen Bergersen / Herring (Clupea harengus) caught in fishing net. Gulls in the net are taking of and flying around, shot with long shutter speed. Norway. December. November

Espen Bergersen / Killer whales / orcas (Orcinus orca). Spyhopping. Kvaloya, Troms, Norway November

Espen Bergersen / Gulls and Killer whales / orcas (Orcinus orca) feeding on herring. Kvaloya, Troms, Norway October

Paul Williams / Kinabalu Giant red leech (Mimobdella buettikoferi) feeding on Kinabalu Giant earthworm (Pheretima darnleiensis), Mount Kinabalu, Borneo.

Andy Rouse / Sally lightfoot crab, (Grapsus grapsus), feeding on marine iguana parasites and dead skin, Galapagos

Jack Dykinga / Yellow-headed blackbirds (Xanthocephalus xanthocephalus) and Redwing blackbirds (Agelaius phoeniceus) roosting. Whitewater Draw Wildlife Area, Arizona, USA, December.

Jack Dykinga / Murmuration of Yellow-headed blackbirds (Xanthocephalus xanthocephalus) and Redwing blackbirds (Agelaius phoeniceus) at sunset, before roosting. Whitewater Draw Wildlife Area, Arizona, USA, December.

Juergen Freund / Moral eels, Urchins, Cuttlefish, Shrimp and other marine life living within a discarded tyre and fishing net under a ships' harbour, Maluku, Indonesia. November.

SCOTLAND: The Big Picture / Blue mussels (Mytilus edulis) with encrusting marine life, Sula Sgeir, Scotland. UK, July

Espen Bergersen / Aerial shot of a fishing boat catching Atlantic herring (Clupea harenguis), with Killer whales (Orcinus orca) and Humpback whales (Megaptera novaeangliae) swimming around the boat and large numbers of...

Espen Bergersen / Aerial shot of a fishing boat catching Atlantic herring (Clupea harenguis), with Killer whales (Orcinus orca) and Humpback whales (Megaptera novaeangliae) swimming around the boats and large numbers o...

Markus Varesvuo / White-fronted goose (Anser albifrons) and Taiga bean goose (Anser fabalis rossicus) flocks in flight and on water. Latvia. April.

Franco Banfi / Striped marlin (Kajikia audax) hunting Sardine (Sardinops sagax) in bait ball. Magdalena Bay, Baja California Sur, Mexico.

Franco Banfi / Striped marlin (Tetrapturus audax) feeding on Sardine (Sardinops sagax). Magdalena Bay, Baja California Sur, Pacific Ocean, Mexico.

John Chan / Elegant tern (Thalasseus elegans) with a broken wing, attempting to take off, Southern California, USA, April.

John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, Southern California, USA, April.

Patricio Robles Gil / Kashir grey langur (Semnopithecus ajax) Dachigam National Park, Jammu & Kashmir, India.

Anup Shah / Mixed herd of Common or Plains zebra (Equus quagga burchellii) and Eastern white-bearded wildebeest (Connochaetes taurinus) - remote camera. Masai Mara National Reserve, Kenya.

Andy Rouse / Rufus-breasted hermit hummingbird (Glaucis hirsutus) and Copper-rumped hummingbird and(Amazilia tobaci) hovering, Tobago

David Fleetham / Clark's anemonefish (Amphiprion clarkii), pair tending to egg mass placed beside the protection of an anemone. Yap, Micronesia.

David Fleetham / Great barracuda (Sphyraena barracuda) with three parasitic Copepods at end of upper jaw. Hawaii.

Tui De Roy / Galapagos lava lizard (Microlophus albemarlensis) sitting on Marine iguana (Amblyrhynchus cristatus) Punta Espinosa, Fernandina Island, Galapgos.

Remi Masson / Pike (Esox lucius) hunting in a shoal of Perch (Perca fluviatilis), Lake Neuchatel, Switzerland. June.

Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...

Philippe Clement / Lined top shells (Phorcus lineatus) and Common european limpets (Patella vulgata) in a rock pool, Normandy, France, June.

Juergen Freund / Shoal of Sergeant majors (Abudefduf saxatilis) with various Wrasses (Labridae) feeding on the Sergeant major fish eggs, Raja Ampat, Indonesia.

Juergen Freund / Australian freshwater crocodiles (Crocodylus johnsoni) catching a Little red flying fox (Pteropus scapulatus) flying to drink from a watering hole, Kimberley, Western Australia.

Juergen Freund / Australian freshwater crocodiles (Crocodylus johnsoni) trying to catch Little red flying foxes (Pteropus scapulatus) flying to drink from a watering hole, Kimberley, Western Australia

Juergen Freund / Timelapse of Giant sea cucumbers (Thelenota ananas) moving underwater, with a Giant clam (Tridacna gigas) in the background, Great Barrier Reef, Queensland, Australia, 2015.

Luke Massey / Giant otter (Pteronura brasiliensis) feeding on a catfish (Loricariidae) with Cocoi heron (Ardea cocoi) scavenging remnants, Rio Cuiaba, Brazil

Remi Masson / Group of Nase (Chondrostoma nasus) and Barbels (Barbus barbus) spawning, River Rhone, Rhone-Alpes, France, April.

Tony Wu / Indo-Pacific sailfish (Istiophorus platypterus) in feeding frenzy, with the remains of a previously large school of sardines (Sardina sp) in background. Isla Mujeres, Cancun, Mexico.

Jeff Foott / Yacare caiman (Caiman yacare) with butterfly on snout, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Guy Edwardes / African elephant (Loxodonta africana) with Egret (Ardeidae sp) on back wtih tourists watching from boat in background. Chobe River, Botswana. 2017.

David Fleetham / Cleaner wrasse (Labroides dimidiatus) swimming alongside Golden damsel (Amblyglyphidodon aureus) looking for parasites, Fiji, Pacific Ocean.

David Fleetham / Galapagos Sea Lion (Zalophus californianus wollebacki) framed by a school of Black Striped Salema (Xenocys jessiae). Santa Cruz Island, Galapagos Islands, Equador.

David Fleetham / Schooling Brown striped snapper (Xenocys jessiae) and Yellowtail sawtail (Prionurus laticlavius), Galapagos Islands, Ecuador.

David Fleetham / White-eyed moray eel (Muraena thyrsoides) close to Zebra lionfish (Dendrochirus zebra), Philippines.

David Fleetham / Goby (Eviota sp) and juvenile porcelain crab (Pteroeides sp), on a Seapen. Komodo National Park, Indonesia.

David Fleetham / Hawaiian pom-pom / boxer crab (Lybia edmondsoni)with anemones (Triactis sp) that it carries around holding with the claws and using them for defense, waving in front of the possible aggressor. An exam...

Steve Downer / Juvenile Common frog (Rana temporaria) on back of a Common snail (Cornu aspersum), UK, June.

Steve Downer / Juvenile Common frog (Rana temporaria) on back of a Common snail (Cornu aspersum), UK, June.

Alex Mustard / Bengal snapper (Lutjanus bengalensis), Bannerfish (Heniochus diphreutes) and Fusiliers (Caesio sp.) diving towards coral reef to avoid predators. North Ari Atoll, Maldives. Indian Ocean.

Richard Robinson / False killer whales (Pseudorca crassidens) traveling with a pod of pelagic Bottlenose dolphins (Tursiops truncatus) Northern New Zealand

Richard Robinson / False killer whales (Pseudorca crassidens) travelling with a pod of pelagic Bottlenose dolphins (Tursiops truncatus) Northern New Zealand Editorial use only.

Claudio Contreras / Black grouper (Mycteroperca bonaci) and Caribbean Reef Shark (Carcharhinus perezi), Jardines de la Reina / Gardens of the Queen National Park, Caribbean Sea, Ciego de Avila, Cuba, January

Jordi Chias / Blue spotted trevally (Caranx bucculentus) hunting small fish in the reef, South Ari Atoll, Maldives, Indian Ocean.

Alex Mustard / Schools of Pacific creolefish (Cephalopholis colonus) and Panamic sergeant major (Abudefduf troschelii) swimming through sun beams inside an underwater cavern. Los Islotes, La Paz, Baja California Sur...

Franco Banfi / Sperm whale (Physeter macrocephalus) portrait, with remora fish, Dominica, Caribbean Sea, Atlantic Ocean, Vulnerable.

Lucas Bustamante / Brush footed butterfly (Lycorea sp.) caterpillar with parasitic wasp cocoons on silk threads, Yasuni National Park, Orellana, Ecuador.

Lucas Bustamante / Mosquito (Culicidae) feeding on the back of an Equatorial anole (Anolis aequatorialis) Mindo, Pichincha, Ecuador.

John Waters / Slow motion clip of a mixed flock of Teal (Anas crecca) and Wigeon (Anas penelope) landing in a lake, Greylake RSPB Reserve, Somerset Levels, England, UK, February.

John Waters / Large mixed flock of Knot (Calidris canutrus), Dunlin (Calidris alpina) and Golden plover (Pluvialis apricaria) in flight at high tide, Steart Marshes WWT Reserve, Somerset, England, UK, December.

Philippe Clement / Common guillemots (Uria aalge) and Razorbills (Alca torda) swimming and fishing at sea, Fowlsheugh RSPB Reserve, Aberdeenshire, Scotland, UK, May.

Dave Bevan / Bank vole (Myodes glareolus) feeding from a bird feeder anlongside a Coal tit (Periparus ater) and Blue tit (Cyanistes caeruleus), Carmarthenshire, Wales, UK, September.

Staffan Widstrand / Wild Wonders of China / Red panda or Lesser panda (Ailurus fulgens) in the humid montane mixed forest, Laba He National Nature Reserve, Sichuan, China

Jordi Chias / European barracuda (Sphyraena sphyraena) and Bluefish (Pomatomus saltatrix) circling baitball of Atlantic horse mackerel (Trachurus trachurus) Formigas Islets, Azores. Finalist in the Underwater Categ...

John Waters / Mixed flock of Wigeon (Anas penelope) and Northern lapwings (Vanellus vanellus) disturbed by hunting Marsh Harrier (Circus aeruginosus), Greylake RSPB Reserve, Somerset Levels, England, UK, December.

Bence Mate / African buffalo (Syncerus caffer) and Warthog (Phacochoerus africanus) at night with full moon, Mkuze, South Africa Third place in the Nature Portfolio category of the World Press Photo Awards 2017.

Tui De Roy / Galapagos Lava Lizard (Microlophus albemarlensis) on Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

John Waters / Timelapse of flies and a slug on a Common stinkhorn fungus (Phallus impudicus), Mendips, Somerset, UK, July.

Christophe Courteau / Greater flamingoes (Phoenicopterus ruber) and Lesser flamingoes (Phoeniconaias minor), Walvis Bay, Namibia.

Frederique Olivier / Black browed albatross (Thalassarche melanophris) chick in nest, interacting with a Southern rockhopper penguin (Eudyptes chrysocome) chick, New Island, Falkland Islands.

Nick Upton / Common prawns (Palaemon serratus) and a Rock goby (Gobius paganellus) feeding on a dead Montagu's crab (Xantho hydrophilus) in a rockpool, Cornwall, England, UK, September.

Nick Upton / Rock goby (Gobius paganellus) stealing food from a scavenging Common prawn (Palaemon serratus) in a rockpool, Cornwall, England, UK, September.

Nick Upton / Slow motion clip of a Meadow brown butterfly (Maniola jurtina) and a Gatekeeper butterfly (Pyronia tithonus) nectaring on Saw-wort flowers (Serratula tinctoria), with a Silver-washed fritillary (Argyn...

Eric Dragesco / Wild Snow leopard (Uncia uncia) feeding on a kill hidden behind a rock, with a Eurasian magpie (Pica pica) in the foreground, Altai Mountains, Mongolia, February.

Ammonite / Close up of a Common snail (Cornu aspersum) moving, with Woodlice (Oniscidea). Controlled conditions.

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) watching a fish swim by, Hino River, Tottori-ken, Japan, September.

Nick Upton / Panning shot of partially flooded pastureland with large flocks of Wigeon (Anas penelope), Lapwings (Vanellus vanellus) and Golden plover (Pluvialis apricaria) in flight, Gloucestershire, England, UK,...

Nick Upton / Panning shot of a flock of Lapwings (Vanellus vanellus) landing on partially flooded pastureland near resting Black-tailed godwits (Limosa limosa) and grazing Wigeon (Anas penelope), Gloucestershire,...

Nick Upton / Flock of Lapwings (Vanellus vanellus) in flight, with Golden plover (Pluvialis apricaria) flying in the background, Gloucestershire, England, UK, January.

Francisco Marquez / Griffon vultures (Gyps fulvus) and European black vultures (Aegypius monachus) feeding on a dead deer, Cabaneros National Park, Montes de Toledo, Spain, May.

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...

Jack Dykinga / Desert landscape at sunset, with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. An...

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...

Jack Dykinga / Whipple Mountain foothills, with flowering Notch-leaf scorpion-weed (Phacelia crenulata) and Heartleaf evening primrose (Camissonia cardiophylla) with the Riverside and Big Maria Mountains in the back...

Jack Dykinga / Whipple Mountain foothills, with flowering Notch-leaf scorpion-weed (Phacelia crenulata) and Heartleaf evening primrose (Camissonia cardiophylla) with the Riverside and Big Maria Mountains in the back...