Gary Bell/ Oceanwide / Portuguese Man Of War (Physalia physalis) jellyfish, Coffs Harbor, Solitary Islands Marine Park, New South Wales, Australia

Gary Bell/ Oceanwide / Portuguese Man Of War (Physalia physalis) jellyfish, Coffs Harbor, Solitary Islands Marine Park, New South Wales, Australia

Jeff Foott / Half Dome, Yosemite National Park, California

Tim Fitzharris / Atlantic Sailfish (Istiophorus albicans) and Magnificent Frigatebird (Fregata magnificens) flock hunting Round Sardinella (Sardinella aurita) school, Isla Mujeres, Mexico

Tim Fitzharris / Parrotfish (Scaridae), Wrasse (Labridae), and Sergeant Major Damselfish (Abudefduf saxatilis) school, Balicasag Island, Philippines

Seth Patterson / A compilation of items found washed up along a half mile stretch of the high tide line of South Padre Island, Texas. October 2016. Some of the plastic bottles and bags of signs of nip marks from hun...

Ralph Pace / Humpback Whale (Megaptera novaeangliae) male and female courting, Maui, Hawaii, image taken under NMFS Permit # 19225

Ingo Arndt / Red-eyed Tree Frog (Agalychnis callidryas) close- up of eye half open, the golden webbed semi-transparent eyelid allows to see its surrounding even while resting, Costa Rica.

Ingo Arndt / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} mother and baby, Jodhpur, Rajasthan, India

Ingo Arndt / European edible frog half submerged in water {Rana esculenta} Germany

Tim Fitzharris / Sunrise over Half Dome, Yosemite Valley, Yosemite National Park, California

Tim Fitzharris / Half Dome reflecting in Merced River, Yosemite National Park, California

Tim Fitzharris / Sunrise over Half Dome, Yosemite Valley, Yosemite National Park, California

Pete Oxford / Brown Pelican (Pelecanus occidentalis) on water, Urbina Bay, Isabela Island, Galapagos Islands, Ecuador

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) swimming in mangrove forest, Isla Escudo de Veraguas, Panama

Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group migrating upstream, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

Ingo Arndt / American Alligator (Alligator mississippiensis) in water, Everglades National Park, Florida

Pete Oxford / Tea picker, collecting Tea leaves (Camelia sinensis) wearing large straw hat, Assam, North East India, October 2014.

Pete Oxford / Konyak Naga tattooed Ang or Chief. Only someone who has killed and taken a human head can be tattooed in this manner. Mon district. Nagaland, North East India, October 2014.

Cyril Ruoso / Man with Chamec spider monkeys (Ateles chamek) holding onto him as he walks through sanctuary. Ikamaperou Sanctuary, Amazon, Peru. October 2006.

Eric Baccega / Young woman from the Bodi tribe displaying elaborate scarification on the skin of her back, Omo Valley, Ethiopia, March 2015.

Anup Shah / Dusky leaf monkey (Trachypithecus obscurus) baby playing . Khao Sam Roi Yot National Park, Thailand.

Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) migrating upstream, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

Enrique Lopez-Tapia / Karo boy with decorative skin painting. Karo tribe, Omo river, Ethiopia, November 2014

Enrique Lopez-Tapia / Woman with stick at the Jumping of the bulls Hamer ceremony. This Hamer ceremony, is a right of passage into manhood for Hamer boys. During the ceremony young female relatives of the boys beg to be wh...

Pal Hermansen / Graveyard with white crosses half buried in snow, Svalbard, Norway. March.

Cyril Ruoso / Surrogate mother holding orphan Bonobo (Pan paniscus) and her own baby Lola ya Bonobo Sanctuary, Democratic Republic of the Congo.

Cyril Ruoso / Bonobo (Pan paniscus) foraging in river, Lola Ya Bonobo Sanctuary, Democratic Republic of the Congo. Non-ex

Ole Jorgen Liodden / Mountain gorilla (Gorilla beringei beringei) baby chewing on stick, Virunga, Rwanda.

Markus Varesvuo / Jack snipe (Lymnocryptes minimus), Uto, Finland, November.

Luciano Candisani / Jacare Caiman (Caiman yacare) young in wetland, Pantanal, Brazil

Luciano Candisani / Jacare Caiman (Caiman yacare)fishing in wetland, Pantanal, Brazil

Eric Baccega / Portrait of Naro San Bushman with leather headdress made of duiker skin, Kalahari, Ghanzi region, Botswana, Africa. October 2014.

Luciano Candisani / Cushioned Star (Oreaster reticulatus), Gipoia Island, Ilha Grande, Brazil

Tom Gilks / Man climbing and harvesting Khat tree (catha edulis) Meru, Kenya

Anup Shah / Sumatran orangutan (Pongo abelii) female 'Juni' aged 12 years swinging from a liana. Gunung Leuser National Park, Sumatra, Indonesia. Rehabilitated and released (or descended from those which were rel...

Jouan Rius / Half Dome and Sierra Nevada from Glacier point, Yosemite National Park, California, USA, October 2012.

Jeff Rotman / Fishermen hauling back trawler net on fishing trawler. Stellwagen Banks, New England, United States, North Atlantic Ocean Model released.

Juan Carlos Munoz / Male African lion (Panthera leo) at night, Kalahari Desert, Botswana.

Ben Cranke,Ben Cranke / Gentoo Penguin (Pygoscelis papua) penguins rest on a floating iceberg, Antarctic Peninsula, Antarctica

Franco Banfi,Franco Banfi / Spectacled caiman (Caiman crocodilus) Rio Baia Bonita, Bonito, Mato Grosso do Sul, Brazil

Diane McAllister / Japanese Macaque (Macaca fuscata) biting needles from tree branch while sitting in hot spring in Jigokudani, Japan, January

Doug Perrine / Hawaiian monk seals (Monachus schauinslandi) aggressive male attacks a five and a half week pup, mother (right) approaches to intervene; Papaloa Beach, Kalaupapa, Molokai, Hawaii, USA

Juergen Freund / Junior ranger carries a green turtle (Chelonia mydas) to shore for the scientific research data gathering. Queensland, Australia, May 2011. Model released.

Igor Shpilenok,Igor Shpilenok / A Kamchatka Brown Bear (Ursus arctos beringianus) standing in breaking waves. Pacific coast of Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, July.

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingo (Phoeniconaias minor) portrait, Lake Bogoria, Rift valley, Kenya, Africa

Jabruson / African elephant (Loxodonta africana) two youngsters 'Mecca' and 'Lungunia' being fed mangos by their keeper, Garamba National Park, North Eastern Zaire, now the Democratic Republic of Congo. Remnants...

Gavin Hellier / Tuk Tuk or auto rickshaw in motion at night, Bangkok, Thailand, 2010. Model released.

Denis-Huot / Masai Giraffe (Giraffa camelopardalis tippelskirchi) male and female (back). Masai-Mara Game Reserve, Kenya.

Jabruson / 'Patasse' - a male member of the Ba'Aka ethnic group from the village of Mossapoula, a tribe that have lived around Dzanga Ndoki National park for thousands of years and still depend on forest resourc...

Paul D Stewart / Restoration of the Iguanodon by Alice B. Woodward from Lydekker's The Royal Natural History' Frederick Warne and co, 1896. This is one of the first reconstructions to correctly show the Iguanodon's th...

Roberto Rinaldi / Weedy seadragon (Phylloperyx taeniolatus) with diver watching nearby, Australia. Model released

Roy Mangersnes / Man wearing Bob Marley T-shirt holding a half kilogram bag of Coca (Erythroxylum coca) leaves, valued at 20 Bolivianos, or approximately two British Pounds, Bolivia, November

Shibai Xiao / Marbled eel (Anguilla marmorata) captured by local people and being held up in net, Hainan Island, China. No release available.

Peter Cairns / 2020VISION / Red squirrel (Sciurus vulgaris) jumping, holding a nut in its mouth, Cairngorms National Park, Scotland, UK, March. Did you know? Red squirrels weigh half as much as grey squirrels.

Ross Hoddinott / 2020VISION / Sun rising through trees and mist, Arne RSPB reserve, Dorset, August. Did you know? Over half the area of Dorset is a listed as an 'Area of Outstanding Natural Beauty'.

Ernie Janes / Long necked woman with many neck rings, belonging to Padaung Tribe, Thailand

Nick Turner / Man putting vegetables in bag at Stroud Farmers Market, Stroud, Gloucestershire, UK, August 2011.

Nick Turner / Man lifting fluorescent light tubes at a recycling centre, Stroud, Gloucestershire, UK, February 2008.

Alex Mustard / Diver swimming through dense school of Silversides (Atherinidae) inside a coral cavern, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea. Model released

Bernard Castelein / Village life, woman covering her face, in doorway to village home, with peacock art on walls, Sawai Modhopu, Rajasthan, India

Edwin Giesbers / Red fox (Vulpes vulpes) behind long grass, The Netherlands, March

Edwin Giesbers / Red fox (Vulpes vulpes) close-up of half of face, captive

Andrew Parkinson / 2020VISION / A line of Mallard (Anas platyrhynchos) ducklings swimming on a still lake, Derbyshire, England, UK, June. Did you know? A Mallard duck will lay more than half her body weight in eggs.

Pete Oxford / American alligator (Alligator mississippiensis) half submerged, Okefenokee National Wildlife Refuge, Florida, USA

Mary McDonald / Grizzly Bear (Ursus arctos horribilis) male in water. Coastal Katmai National Park, southwest Alaska, USA, August.

Eric Baccega / Tourist watching Harp seal (Phoca groenlandicus) pup on sea ice, Magdalen Islands, Gulf of St Lawrence, Quebec, Canada, March 2012. Model released.

Andy Rouse / African Lion (Panthera leo) adult looking from behind tree, half hidden. South Luangwa, Zambia, Africa.

Dan Burton / Child with a Praying Mantis (Mantodea) on hand. France, Europe, August. Model released.

Ole Jorgen Liodden / King Penguin (Aptenodytes patagonicus) colony in heavy snow. South Georgia Island, Southern Ocean, November.

Kristel Richard / Portrait of a rare Sorria stallion, Reserva Natural do Cavalo do Sorraia, Alpiarca, District Santarem, Alentejo, Portugal.

Ross Hoddinott / 2020VISION / Blue-tailed damselfly {Ischnura elegans} half visible behind reed stem, Cornwall, UK. June

Patricio Robles Gil / Silhouetted Capivara / Capibara (Hydrochoerus hydrochaeris) with Cattle Tyrant (Machetornis rixosa), which feeds on flies approaching the Capibara. Parana, Southern Brazil.

Anup Shah / Proboscis monkey (Nasalia larvatus) mature male sitting in a tree, Bako National Park, Sarawak, Borneo, Malaysia, April

Frederique Olivier / Young girl paddling dugout canoe, Peava village, Solomon Islands, Melanesia, September 2008.

Fiona Rogers / Bonobo (Pan paniscus) adolescent male wading through water, calling, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Bryan and Cherry Alexander / Chinstrap penguins (Pygoscelis antarcticus) and Snowy sheathbill (Chionis alba) on snowy rocks. Half Moon Island, South Shetland Islands, Antarctica, October.

Bryan and Cherry Alexander / Chinstrap penguins (Pygoscelis antarcticus) on snowy rocks. Half Moon Island, South Shetland Islands, Antarctica, October.

Ernie Janes / Yellow Labrador with ball in its mouth against blue sky.

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) mother and calf breaking surface, Moray Firth, Scotland, UK, June 2011. Did you know? Dolphins can swim to the surface to breathe even when sleeping, as they ca...

Carol Walker / Chestnut arabian stallion running, California, USA

Juergen Freund / Portrait of East Timorese girl in traditional clothing, Maubara, East Timor, August 2010

Matthew Maran / A man sitting in the cable car of a chair bridge as it crosses a river. The West Coast Trail, Pacific Rim National Park, Vancouver Island, Canada, September 2010. Model released

Juergen Freund / Whitemargin stargazer (Uranoscopus sulphureus) half hidden in the sand. Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Hard brain coral (Platygyra sp) half covered with a pink algae, Moluccas Islands, Indo-pacific

Juergen Freund / Anthea Melsen smiles shyly as she comes out of the water after looking at her grandfather's coral and clam gardens, Onma Lodge, Kolombangara, Western Province, Solomon Islands, July 2010

Juergen Freund / Outrigger boats catch Yellowfin tuna fishing with hook and line. Catching a Yellowfin tuna, these fishermen fish near a fish attracting device (FAD) or rumpon, attached to a raft or rakit some 100 km...

Fiona Rogers / Bornean Orang-utan (Pongo pygmaeus wurmbii) female baby 'Petra' aged 12 months portrait. Camp Leakey, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia, July 2010. Rehabilitated and...

Luiz Claudio Marigo / Jabiru Stork (Jabiru mycteria) plagued by horseflies (Tabanidae). Pixaim River, The Pantanal wetlands of Mato Grosso State, Brazil, November.

Peter Cairns / 2020VISION / Red deer (Cervus elaphus) stag half hidden behind tree trunk in pine forest, Alvie Estate, Cairngorms NP, Highlands, Scotland, UK, February. Photographer quote: 'The forest is the real home of red de...

Peter Cairns / 2020VISION / Capercaillie (Tetrao urogallus) male displaying half hidden in snow in pine forest, Cairngorms NP, Highlands, Scotland, UK, January

Nick Upton / 2020VISION / Mallard Duck (Anas platyrhynchos) female nesting in ornamental stone flowerpot among Pansies (Viola x wittrockiana). Parade Gardens Park, Bath, UK, June. Did you know? A female mallard may lay more th...

Tim Laman / Ornithologist Brett Benz prepares a Huon Macgregor's Gardener Bowerbird (Amblyornis macgregoriae) museum specimen. At the Araurong field camp in the Sarawaget Range Indonesia, Dec 2006

Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

Pete Oxford / Man with performing pet Barbary ape (Macaca sulvanus) Morocco, June 2009