Alex Hyde / Regal Jumping Spider (Phidippus regius) male, close-up showing irridescent mandibles. Captive. Endemic to North America.

Peter Cairns / 2020VISION / Close-up of the nose of a Highland cow (Bos taurus) Isle of Lewis, Outer Hebrides, Scotland, UK, April.

Alex Hyde / Human Head Louse (Pediculus humanus capitis) macro shot of claw, that allows the louse to grip onto the hairs of their human host, False-colour scanning electron micrograph (SEM).

Alex Hyde / Common Wasp (Vespula vulgaris) close up of sting, UK

Fabrice Cahez / Antennae of Owlfly (Libelloides longicornis). Lozere, France, July.

Oriol Alamany / Close up of skin on the ear and back of an African elephant (Loxodonta africana), Mopani, Kruger National Park, Transvaal, South Africa, September.

Oriol Alamany / African elephant (Loxodonta africana) rear view Kruger National Park, Transvaal, South Africa, September.

Colin Varndell / Ash (Fraxinus excelsior) fresh leaf in spring, Dorset, UK April

David Pattyn / Dalmatian pelican (Pelecanus crispus) abstract head portrait, Lake Kerkini, Greece, March

Juan Carlos Munoz / Roseate Spoonbill (Platalea ajaja) rear view wings open, in mangrove canopy. Everglades National Park, Florida, USA, February.

Juan Carlos Munoz / Snowy Egret (Egretta thula) talon. Everglades National Park, Florida, USA, February.

Sandra Bartocha / Light reflected through icicles, Tollensesee, Germany, January

Andy Rouse / European hare (Lepus europaeus) in field, UK, May

Alex Mustard / Caribbean reef squid (Sepioteuthis sepioidea) North Wall, Grand Cayman, Cayman Islands, West Indies, Caribbean Sea

Alex Mustard / The eye of a Pacific giant octopus (Enteroctopus dofleini). Browning Pass, Vancouver Island, British Columbia, Canada

Edwin Giesbers / Close-up of Alpine marmot (Marmota marmota) fur and eye, Hohe Tauern National Park, Austria, July

Jack Dykinga / Hectia, a tropical bromeliad, stress coloured with blades grown in interlocking patterns, in the state of Yucatan, Mexico

Jack Dykinga / Twisted and emerging limbs of Saguaro cacti (Carnegiea gigantea) Sonoran Desert near Tucson, Arizona, USA

Jack Dykinga / Colorado River Delta, with watercourse sculpted patterns eroded into the salt / silt flats near the Sea of Cortez, La Reserva del Golfo, Baja, Mexico

Kim Taylor / Stinging caterpillar, Costa Rica

Danny Green / Brown Hare (Lepus europaeus) close-up of fur and eye. Derbyshire, UK, March.

Konrad Wothe / Resplendent Quetzal (Pharomachrus mocinno costaricensis) male tail feathers hanging out of the nest, Costa Rica

Alex Mustard / 2020VISION / Tompot blenny (Parablennius gattorugine) beneath Swanage Pier, Dorset, UK. Photographed during May. English Channel.

Roland Seitre / Brazilian Tapir (Tapirus terrestris) baby looking at camera. Captive. Medellin Zoo, Antioquia, Colombia.

Claudio Contreras / Detail of Ocellated Turkey (Meleagris / Agriocharis ocellata) plumage. El Mirador-Rio Azul National Park, Department of Peten, Guatemala.

Claudio Contreras / Detail of Ocellated Turkey (Meleagris / Agriocharis ocellata) plumage. El Mirador-Rio Azul National Park, Department of Peten, Guatemala.

Florian Möllers / Quinling Golden snub nosed Monkey (Rhinopitecus roxellana qinlingensis), infant suckling Zhouzhi Nature Reserve, Qinling Mountains, Shaanxi, China.

Edwin Giesbers / Rothschild's giraffe (Giraffa camelopardalis rothschildi) close up of young calf skin pattern, captive

Edwin Giesbers / Indian elephant (Elephas maximus) close up of skin and tail, captive

Alex Hyde / Malaysian orchid mantis (Hymenopus coronatus) photographed on a white background, originating from Malaysia. Captive.

Edwin Giesbers / Crowned crane (Balearica regulorum) close-up of feathers, captive

Edwin Giesbers / Greater flamingo (Phoenicopterus ruber) feathers on back, captive

Edwin Giesbers / Greater flamingo (Phoenicopterus ruber) close-up of back, captive

Edwin Giesbers / Greater flamingo (Phoenicopterus ruber) head sticking out from behind wing, captive

Doug Perrine / Flower Hat Jelly / Jellyfish (Olindias formosa), a rare hydromedusa with fluorescent tentacle tips. Endemic to Brazil, Argentina, and southern Japan.

Sven Zacek / Tail of a Pine Marten (Martes martes) sticking out from a black woodpecker hole as it forages for eggs and chicks. Estonia, Europe, May.

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

Jeff Rotman / Close-up of scales of the Yellowbar Angelfish (Pomacanthus maculosus). Red Sea, Egypt.

Andrew Parkinson / Rear view of Red squirrel tail (Sciurus vulgaris) foraging in deep snow, Cairngorms National Park, Scotland, UK, March.

B&S Draker / Pipevine Swallowtail Butterflies (Battus philenor) pair mating close-up. Sinton, Corpus Christi, Coastal Bend, Texas, USA, June.

Rob Tilley / Rainbow Eucalyptus (Eucalyptus sp.) bark detail. Maui, Hawaii, February.

Kevin Schafer / Southern / Double-wattled cassowary (Casuarius casuarius) wild, adult male rear view, Atherton Tablelands, Queensland, Australia, November

David Maitland / Close-up view of the upward-looking giant dorsal compound eyes of the St Marks fly (Bibio marci) used to detect female flies flying above. Like many insects the eyes are "hairy". Feltwell, Norfolk, UK...

Juergen Freund / Detail of Emperor angelfish (Pomacanthus imperator) Bali, Indonesia, Indo-pacific

Matthew Maran / Detail of frost on Western Red Cedar (Thuja plicata). Vancouver Island, Canada, March.

Alex Mustard / A Pygmy Seahorse (Hippocampus bargibanti) in red seafan (Muricella sp.). Pygmy Seahorses are small, most less than 15mm in total length. Tulamben, Bali, Indonesia, Java Sea, August.

Alex Mustard / A Pygmy Seahorse (Hippocampus bargibanti) camouflaged in red Seafan (Muricella sp.). Pygmy Seahorses are small, most less than 15mm in length. Tulamben, Bali, Indonesia, October.

Alex Mustard / A Pygmy Seahorse (Hippocampus bargibanti) camouflaged in red Seafan (Muricella sp.). Pygmy Seahorses are small, most less than 15mm in length. Tulamben, Bali, Indonesia, October.

Alex Mustard / A batch of Leafy Seadragon (Phycodurus eques) eggs on the tail of a male. Wool Bay Jetty, Edithburgh, Yorke Peninsular, South Australia, November.

Edwin Giesbers / Legs of a White Stork (Ciconia ciconia) on ice. The Netherlands, January.

Edwin Giesbers / Close-up of European Otter (Lutra lutra) tail in water. Captive. The Netherlands.

Alex Hyde / Close up of feathers of cock Pheasant (Phasianus colchicus).

Juan Carlos Munoz / Close-up of the talons of a Spanish imperial eagle (Aquila adalberti). Sierra de Andujar Natural Park, Jaen, Andalusia, Spain, Captive

Edwin Giesbers / Jaguar (Panthera onca) close-up of coat and tail, captive

Christophe Courteau / Tail of a Leopard (Panthera pardus) beside its kill, the legs of an Impala, dragged up into a tree, South Africa, July

Alex Hyde / Panther Chameleon {Furcifer pardalis} close-up of skin, green colouration. Masoala Peninsula National Park, north east Madagascar.

Alex Hyde / Spinybacked orb weaver spider (Gasteracantha sp.} photographed on white background, tropical rainforest, Andasibe-Mantadia NP, Madagascar

Alex Hyde / Close up of Parson's chameleon {Calumma parsonii} foot gripping branch. The 5 toes of each foot are fused into opposing groups in a 2:3 arrangement. Madagascar.

Alex Hyde / Panther chameleon close-up of skin {Furcifer pardalis} green colouration, Madagascar.

Guy Edwardes / Sand patterns and ice, on the beach, Burnham-on-sea, Somerset, England, UK, January 2010

Inaki Relanzon / Leaf nosed twig snake (Langaha madagascariensis) male, Baie de Baly National Park, North west Madagascar.

Michael D. Kern / Rainbow millipede (Aulacobolus rubropunctatus) captive

Edwin Giesbers / Shed skin of grass snake {Natrix natrix} on lilypad, Netherlands.

Andy Sands / Brindled Beauty (Lycia hirtaria) caterpillar larva feeding on willow leaves, Hertfordshire, England, UK

Ross Hoddinott / Common blue tailed damselfly {Enallagma cyathigerum} peering out from behind stem. Tamar lake, Cornwall/Devon, UK. August.

Wild Wonders of Europe / Unterthiner / Two juvenile Whooper swans (Cygnus cygnus) walking in snow, Lake Tysslingen, Sweden, March 2009

Wild Wonders of Europe / Widstrand / Close-up of Poppy flower stamens and stigma, La Serena, Extremadura, Spain, April 2009

Juergen Freund / Soft coral crab / Dendronephthya crab (Hoplophrys oatesii) camouflaged on the tip of a soft coral. Indo-pacific

Edwin Giesbers / Common zebra (Equus quagga) close-up showing stripes, Tanzania

Tim Laman / Spines along the back of a marine iguana (Amblyrhynchus cristatus), Puerto Egas, Santiago Island, Galapagos Islands.

Edwin Giesbers / Chinstrap Penguin {Pygoscelis antarctica} face portrait, Antarctica

David Shale / Deepsea squid {Histioteuthis bonellii} showing chromatophores changing colour, from the Mid-Atlantic Ridge, 200 - 50m

Edwin Giesbers / Toco toucan (Ramphastos toco), close-up of face, Costa rica

David Shale / Deepsea squid {Histioteuthis bonellii} showing chromatophores changing colour, from the Mid-Atlantic Ridge, 200 - 50m

Jouan & Rius / Hand of Ring-tailed Lemur (Lemur catta), dry forest of Berenty reserve, South Madagascar

Michael D. Kern / Close-up of eyes of Common iguana {Iguana iguana} composite. NOT FOR SALE TO TECHNOLOGYor FINANCIAL SERVICES INDUSTRIES.

Paul Hobson / Blue-tailed Damselfly (Ischnura elegans) looking from behind sedge stem, seeing eyes and legs only, Peak District NP, UK

Paul Hobson / Azure damselfly (Coenagrion puella) male, looking from behind flag iris, seeing eyes only, Peak District NP, UK

Niall Benvie / Detail of silver birch bark {Betula verrucosa}, May, Songli, Sr-Trndelag, Norway

Niall Benvie / Detail of silver birch bark {Betula verrucosa}, May, Songli, Sr-Trndelag, Norway

Rolf Nussbaumer / Ocelot {Felis pardalis} captive, leg and paw of female resting, Welder Wildlife Refuge, Texas, USA

Niall Benvie / Detail of silver birch bark {Betula verrucosa}, May, Songli, Sr-Trndelag, Norway

Juergen Freund / Close up of eye of Princess parrotfish {Scarus taeniopterus} Caribbean

Jack Dykinga / Boulder with zig-zag trails across a dry lake bed, sunset, Ubehebe Peak in distance, The Racetrack Playa, Death Valley National Park, California

Jack Dykinga / Boulders with trails across a dry lake bed, sunrise, The Racetrack Playa, Death Valley National Park, California

Solvin Zankl / Close up of Black browed albatross (Thalassarche melanophrys) eye, Falkland Islands

Piotr Naskrecki / Horned Leaf Chameleon (Brookesia superciliaris) camouflaged against brown leaf, Madagascar

Jabruson / Close up of skin of Puff adder {Bitis arietans} Tsavo East NP, Kenya

Martha Holmes / Southern elephant seal {Mirounga leonina} close-up of hand-like flipper scratching, Falkland Islands.

Artur Tabor / Close up of eye of Domestic goat (Capra hircus)

Doug Wechsler / Viceroy butterfly pupa {Limenitis archippus} on leaf stem. USA. Captive.

Yuri Shibnev / Footprints of Harvest mouse {Micromys minutus} in snow leading to print where bird landed and took mouse, far east Russia.

Chris Packham / Marbled white butterfly {Melanargia galathea} camouflaged in rocks, UK.

Rod Williams / Leaf insect {Phyllium giganteum} on leaf. Captive.

Juergen Freund / Decorator spider crab {Camposcia refusa}. Indo-Pacific

Constantinos Petrinos / Decorator crab {Miccipa philyra}. Sulawesi, Indonesia.