Anup Shah / Lesser flamingos {Phoeniconaias minor} performing 'wing salute' as part of courtship display, the wings are spread out to the side of the body and held in this position for several seconds, making the...

Gavin Hellier / Elevated view of the new Dubai skyline of modern architecture and skyscrapers including the Burj Khalifa on Sheikh Zayed Road, Dubai, United Arab Emirates 2011. No release available.

Gavin Hellier / Elevated view over traditional houses in Chinatown, Singapore, 2012. No release available.

Jack Dykinga / Bark patterns of Aspen tree (Populus tremula) in front of a Ponderosa pine (Pinus ponderosa) trunk, Kaibab National Forest, Arizona, USA

Andy Sands / Small emperor moth (Saturnia pavonia) male below female both displaying eyespots on Gorse, Captive, UK, April

Andy Sands / Clouded yellow butterfly (Colias crocea) On Wild sweet pea flower, Captive, UK, July

Jean E. Roche / Aerial view of old basins used for concentrating magnesium sulphate (MgSO4) in the salt pans at Salin de Giraud, Camargue, Southern France

Juan Carlos Munoz / Northern lights / Aurora borealis, Iceland, Europe, March 2012

Juergen Freund / Split level of snorkeler over coral reef on white sandy seabed contrasting with dry topside landscape in background, Komodo NP, Indonesia, August 2009. Model released.

Florian Möllers / House sparrow (Passer domesticus) breeding in the cannon tube of a tank at the Russian War Monument, Unter den Linden, Berlin, Germany, June 2007

Orsolya Haarberg / Patterns of sand, ice and volcanic ash on the slope of the Reykjafjoll mountain, Fjallabak Nature Reserve, Iceland, sunset, August 2010

Juan Carlos Munoz / Viper's bugloss (Echium vulgare) flowering in an olive grove. Sierra de Andujar Natural Park, Jaen, Andalusia, Spain, April 2010

Adrian Davies / Orange coloured Seashore Lichens (Xanthoria parietina) and Sea Ivory (Ramalina siliquosa) UK, August

Ernie Janes / Domestic beef cattle in winter rearing shed, Scotland, UK, November 2007

LYNN M. STONE / Pair of English Springer Spaniels, one black and white, one liver and white, amongst autumn leaves with pumpkins in cart, Illinois, USA

Oriol Alamany / Lenga Beech forest (Nothofagus pumilio) and Frances Glacier on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Glaciar lagoon below Torres del Paine, Torres del Paine National Park, Patagonia, Chile, January 2006

Ernie Janes / Black labrador amongst heather, UK

Petra Wegner / Cavalier King Charles Spaniel, three puppies resting on cushion bed, blenheim and tricolour, 5 weeks

Petra Wegner / Cavalier King Charles Spaniel, two puppies on grass, blenheim and tricolour, 5 weeks

Petra Wegner / Smooth haired Dachshund, black and tan, with with Whippet standing over

Petra Wegner / Two Cavalier King Charles Spaniels, blenheim and tricolour coated, sitting wearing reindeer antlers

Petra Wegner / British Shorthair Cats, pair, blue and cream, one lashing out at the other

Petra Wegner / Two Cavalier King Charles Spaniel, puppies, blenheim and tricolour, 9 weeks, sitting

Laurent Geslin / Seven-spot ladybird (Coccinella septempunctata) on a lavender flowerhead in a park, with buildings behind. Neuchatel, Switzerland

Petra Wegner / Two Miniature Schnauzers, black-silver and pepper-and-salt coated, sitting in autumn foliage

Andrew Parkinson / Ptarmigan (Lagopus mutus) male in flight over snow covered Cairngorm Mountains, Scotland, February. (non-ex)

Jack Dykinga / Capitol Reef National Park's contrasting stata in sunset light with the Henry Mountains on the distant horizon. Utah, America, USA, October.

Enrique Lopez-Tapia / Elderly Borona woman, with her young grandson. Ethiopia, November 2014

Enrique Lopez-Tapia / Elderly Borona woman, with her young grandson. Ethiopia, November 2014

Enrique Lopez-Tapia / Elderly Borona woman, with her young grandson. Ethiopia, November 2014

Alex Mustard / Mimic octopus (Thaumoctopus mimicus) flares its arms and reveals contrasting colour pattern as it moves across sandy seabed. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Alex Mustard / A wunderpus octopus (Wunderpus photogenicus) warning pose, which includes flared arms and strongly contrasting striped pattern, at the entrance to its burrow, Java Sea, Amed, Bali, Indonesia

Alex Mustard / A wunderpus octopus (Wunderpus photogenicus) warning pose, which includes flared arms and strongly contrasting striped pattern. At the entrance to its burrow. Java sea, Amed, Bali, Indonesia.

Christian Ziegler / Cloud forest contrasting with intense farming on slopes, Barro Colorado Island, Panama

Juergen Freund / Split level of coral reef on white sandy seabed contrasting with dry topside landscape in background, Komodo NP, Indonesia, August 2009.

Petra Wegner / British Longhair Cats, tomcats, black and red coated (Highlander, Lowlander, Britannica) sitting on large log, with autumn foliage

Martin Gabriel / Swamps of the Rio Tempisque contrasting with dry forest of limestone hills with (Stenocereus aragonii) an endemic cactus, Palo Verde National Park, Costa Rica, February 2009

Martin Gabriel / Swamps of the Rio Tempisque contrasting with dry forest of limestone hills with (Stenocereus aragonii) an endemic cactus, Palo Verde National Park, Costa Rica, February 2009

Anup Shah / Lesser flamingos {Phoeniconaias minor} performing 'wing salute' as part of courtship display, the wings are spread out to the side of the body and held in this position for several seconds, making the...

Paul D Stewart / Illustration from page 379, 'Journal of Researches' 2nd Edition 1845 Charles Darwin. The contrasting beaks of four Galapagos finches, three Geospizinae genus and one Certhidea (Warbler finch). Darwin...

Paul D Stewart / Woodcut illustration of sharks attacking a man, with a ray coming to help, with old colouring. From Gesner 'Icones Animalium' publ. Christof Froschover, Zurich, 1560. This scene is copied by Gesner fr...

Onne van der Wal / The textured sail of "Maximus" contrasting with the blue sky behind, 2006 Newport to Bermuda race.

Alex Mustard / Wunderpus (Wunderpus photogenicus) resting on seabed flaring its arms, curling the ends and shows a contrasting colour pattern as a warning, Bitung, North Sulawesi, Indonesia, Lembeh Strait.

Tui De Roy / Two Blue-footed booby (Sula nebouxii) chicks, with age difference of one week that becomes apparent as first hatched chick obtains more food, nestled under parent. Galapagos Islands, Ecuador.

Tui De Roy / Newly hatched Blue-footed booby (Sula nebouxii) chick, with second egg still unhatched and older chick nestled under parent. Galapagos Islands, Ecuador.

Tui De Roy / Newly hatched Blue-footed booby (Sula nebouxii) chicks, showing age difference, acquiring first down at two or three days, nestled under parent. Galapagos Islands, Ecuador.

Tui De Roy / Newly hatched Blue-footed booby (Sula nebouxii) chicks, showing age difference, acquiring first down at two or three days, nestled under parent. Galapagos Islands, Ecuador.

Tui De Roy / Newly hatched Blue-footed booby (Sula nebouxii) chicks, showing age difference, acquiring first down at two or three days, nestled under parent. Galapagos Islands, Ecuador.

Jean E. Roche / European larch forest (Larix decidua), growing at high altitude due to global warming, contrasting with rocky mountain summits. Provence-Alpes-Cotes-d'Azur, France. July.

Paul Harcourt Davies / Contrasting autumnal leaf colour in Little robin (Geranium pupureum), Umbria, Italy. November.

Nigel Cattlin / Aloe vera pot plant section through fleshy succulent leaf from an ornamental and medicinal plant with red dye contrasting the vascular tissue

Nigel Cattlin / Aloe vera pot plant section through fleshy succulent leaf from an ornamental and medicinal plant with red dye contrasting the vascular tissue

Will Watson / Aerial view of Ash (Fraxinus excelsior) woodland in bud contrasting with other deciduous trees and shrubs, Craswell, Herefordshire, England viewed from the Black Mountains, May 2019.

Nigel Cattlin / Sharp eyespot (Rhizoctonia cerealis) lesions with contrasting dark margins and light centres on wheat stem base