Morley Read / Slow motion clip of Leafcutter ants (Atta) carrying pieces of leaves back to their nest, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Danny Green / Polar bear (Ursus maritimus) two walking in snowy landscape with glacier behind. Svalbard, Norway, April 2018.

Ralph Pace / Green Sea Turtle (Chelonia mydas), San Diego, California

Jack Dykinga / Aurora Borealis reflected in Polar Lake, conifers silhouetted at edge. Near Great Slave Lake, Northwest Territories, Canada. September 2018.

Nick Garbutt / Emerald Glass Frog (Centrolenella proseblepan) on leaf. Mid-altitude rainforest, Bosque de Paz, Pacific slope, Costa Rica, Central America.

Danny Green / Atlantic Puffins (Fratercula arctica) resting on a cliff top in the sunset, Sule Skerry, Scotland, UK, July

Adrian Davies / Stag beetle (Lucanus cervus) male silhouetted against leaf, controlled conditions.

Bence Mate / Leafcutter ants (Atta sp) colony harvesting a banana leaf, Costa Rica. 3rd place in the Insects and Spiders category of the Terre Sauvage Nature Images Awards competitions 2015.

Danny Green / White-tailed eagle (Haliaeetus albicilla) in flight at sunset, Norway, August

Konrad Wothe / View up into canopy with sun rays shining through the leaves, lowland rainforest, Panguana Reserve, Huanuco province, Amazon basin, Peru.

Espen Bergersen / Atlantic puffin (Fratercula arctica) and European shag (Phalacrocorax aristotelis) Hornoya, Finnmark, Norway. March.

Danny Green / Mountain Hare (Lepus timidus) resting with ears back, Scotland, March. Highly Commended in the Animal Portrait Category of the BWPA Competition 2015.

Danny Green / Japanese Macaque (Macaca fuscata) carrying young on back through snow, Nagano, Japan, February

Danny Green / Japanese Macaque (Macaca fuscata) carrying young on back through snow, Nagano, Japan, February

Danny Green / Japanese cranes (Grus japonensis) displaying in snow, Hokkaido, Japan, February

Danny Green / Japanese cranes (Grus japonensis) displaying in snow, Hokkaido, Japan, February

Danny Green / Japanese crane (Grus japonensis) displaying, Hokkaido, Japan, February

Orsolya Haarberg / Northern lights above the pine forest, Gjenvollhytta, Klaebu. Sor-Trondelag, Norway. March 2013.

David Noton / Aurora Borealis (Northern Lights) over the Klondike River, Yukon Territories, Canada, September 2013.

Steven Kazlowski / Northern lights (Aurora borealis) glowing brightly over trees along Steese Highway, Cleary Point, outside Fairbanks, Alaska

Cheryl-Samantha Owen / Green-backed heron (Butorides striatus) jumping, Aldabra Atoll, Seychelles

Danny Green / Adult Sloth Bear (Melursus ursinus) scratching its back against a tree, Bandhavgarh National Park, India, February.

Konrad Wothe / Black kitten in garden, Germany

Markus Varesvuo / Common shag (Phalacrocorax aristotelis) flying, with the sun in the background, Vardo, Norway, March.

Fabrice Cahez / Wild cat (Felis silvestris) amongst vegetation, Vosges, France, June

Ross Hoddinott / 2020VISION / Volunteer, Aline Denton, cutting back brambles and blackthorn as part of the farm's conservation management, Denmark Farm, Lampeter, Wales, UK. June 2011. Model released

Danny Green / 2020VISION / Red deer (Cervus elaphus) hind with two Jackdaws (Corvus monedula) on her back, Richmond Park, London, England, UK, October. Photographer quote: "Everything in nature is connected. These two jackdaws...

Mary McDonald / Violet Sabrewing Hummingbird (Campylopterus hemileucurus) male hovering at feeder, Bosque de Paz, Costa Rica, Central America.

Stephen Dalton / Meadow grasshopper (Chorthippus parallelus) leaping, UK

Pete Oxford / Red and Green Macaw (Ara chloroptera) flying, wings spread, back view, wild, ranges from humid east Panama to Brazil, east Peru, north-east Bolivia and Paraguay, Cerrado habitat, Mato Grosso do Sul, B...

Morley Read / Slow motion clip of Leafcutter ants (Atta) carrying pieces of leaves back to their nest, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Morley Read / Slow motion clip of Leafcutter ants (Atta) carrying pieces of leaves back to their nest, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Sergio Hanquet / Shrimp (Trachycaris restricta), close up. Tenerife, Canary Islands.

Adrian Davies / Queen sago cycad (Cycas circinalis) fronds, backlit.

Pascal Kobeh / Eyespot shrimp / Green marble shrimp / Spotted marbled shrimp (Saron sp., may be Saron neglectus) hidden in coral, Sulu sea, Philippines

Marie Read / Golden-fronted woodpecker (Melanerpes aurifrons), male, Cozad Ranch, Rio Grande Valley, Texas, USA, March.

Ralph Pace / Green Sea Turtle (Chelonia mydas), San Diego, California

Jack Dykinga / Aurora Borealis reflected in Polar Lake. Near Great Slave Lake, Northwest Territories, Canada. September 2018.

Jack Dykinga / Conifers silhouetted by Aurora Borealis. Polar Lake, near Great Slave Lake, Northwest Territories, Canada. September 2018.

Jack Dykinga / Aurora Borealis above conifers on shore of Polar Lake, near Great Slave Lake, Northwest Territories, Canada. September 2018.

Guy Edwardes / Backlit Beech (Fagus sylvatica) leaves and buds, Dorset, UK, May.

Guy Edwardes / Wahlberg's Velvet Gecko (Homopholis wahlbergii) silhouetted on green leaf, South Africa, captive.

Staffan Widstrand / Wild Wonders of China / Detail of leaves of Ginkgo tree (Ginkgo biloba) Tangjiahe National Nature Reserve, Sichuan, China. It is the only living species in the division Ginkgophyta, all others being extinct. It is found in f...

Andy Sands / Lapwing (Vanellus vanellus) calling her chicks back, Upper Teesdale, CO Durham, England, UK, June

Alex Mustard / Galapagos green turtle (Chelonia mydas agassizii) male silhouetted against the sun. Wolf Island, Galapagos National Park, Galapagos Islands. East Pacific Ocean.

Piotr Naskrecki / Giant Green Mantis (Sphodromantis gastrica) moulting, Gorongosa National Park, Mozambique

Claudio Contreras / Grey whale (Eschrichtius robustus) calf, Magdalena Bay, Baja California, Mexico, February

Staffan Widstrand / Wild Wonders of China / Forest brook, Ta Cheng Nature reserve, Yunnan, China, October 2017.

Ashley Cooper / Women collecting solar charged batteries from WWF project to supply electricity to a remote island in the Sunderbans, Ganges Delta, India. December 2013

Ashley Cooper / Woman collecting solar charged batteries from WWF project to supply electricity to a remote island in the Sunderbans, Ganges Delta, India. December 2013

Ashley Cooper / Old man with a low energy light bulb which he can use to power house with solar charged batteries from WWF project to supply electricity to a remote island in the Sunderbans, Ganges Delta, India. Dece...

Ashley Cooper / Women collecting solar charged batteries from WWF project to supply electricity to a remote island in the Sunderbans, Ganges Delta, India. December 2013

Ashley Cooper / Woman collecting solar charged batteries from WWF project to supply electricity to a remote island in the Sunderbans, Ganges Delta, India. December 2013

Ashley Cooper / Solar charged batteries in WWF project to supply electricity to a remote island in the Sunderbans, Ganges Delta, India. December 2013

Edwin Giesbers / Great cormorant (Phalacrocorax carbo), close-up of head and beak in profile. Netherlands. April.

David Fleetham / Hawaiian monk seals (Monachus schauinslandi) on beach with Green sea turtle (Chelonia mydas) making it's way back to the ocean after egg laying,Ho'okipa Beach, Maui, Hawaii.

Danny Green / Beaver (Castor fiber) swiiming back to the lodge, Finland, July.

Espen Bergersen / European / Common shag (Phalacrocorax aristotelis) silhouetted against sea, Hornoya birdcliff, Vardo, Norway. March

Edwin Giesbers / African mantis (Sphodromantis gastrica) upside down on twig, captive, occurs in Africa.

Danny Green / Black bears (Ursus americanus) standing on back legs, fighting, Minnesota, USA, June.

Danny Green / Bison (Bison bison) at dawn, Yellowstone National Park, USA, September

Danny Green / Beaver (Castor fiber) swiiming back to the lodge with some aspen, Finland, July.

Danny Green / Grizzly Bear (Ursus arctos) silhouetted at dawn, Lake Clarke National Park, Alaska, September

Nature Production / Green anole / Carolina anole (Anolis carolinensis) silhouetted behind leaf of Livistona boninensis, Chichijima, Ogasawara Islands UNESCO World Heritage Site, Japan

Ingo Arndt / Aurora borealis / Northern lights over boreal forest near Denali National Park, Alaska, USA, March 2013.

Alex Mustard / Green turtle (Chelonia mydas) begins to swim back to the surface to breathe after feeding on seagrass. Marsa Shouna, Port Ghalib, Marsa Alam, Egypt. Red Sea

Edwin Giesbers / Ethiopian banana plant (Ensete ventricosum) close up of leaf. Occurs in Africa. Meise National Botanic Garden of Belgium, August.

Niall Benvie / Shag (Phalacrocorax aristotelis) in silhouette, Lunga, Scotland, UK, May.

Georgette Douwma / Rose-ringed parakeet (Psittacula krameri) with fledgling Starling (Sturnus vulgaris) on bird feeder. London, UK.

Georgette Douwma / Rose-ringed / Ring-necked parakeets (Psittacula krameri) on bird feeders. London, UK.

Georgette Douwma / Rose-ringed / Ring-necked parakeets (Psittacula krameri) on bird feeder. London, UK.

Georgette Douwma / Rose-ringed / Ring-necked parakeets (Psittacula krameri) on bird feeder. London, UK.

Georgette Douwma / Rose-ringed / Ring-necked parakeets (Psittacula krameri) squabbling on bird feeder. London, UK.

Yashpal Rathore / Deccan ground gecko (Cyrtodactylus albofasciatus) , backlit on leaf. Amboli, Maharashtra, India. Endemic to Western Ghats.

Juergen Freund / Australian leaf insect (Phyllium monteithi) silhouetted against leaf, Queensland, Australia.

Danny Green / Coastal brown bear (Ursus arctos) portrait at dawn, Lake Clarke National Park, Alaska, USA. September.

Alex Hyde / Yellow-flecked glassfrog (Sachatamia albomaculata) backlit to show highly translucent body, Osa Peninsula, Costa Rica

Alex Hyde / Green and black poison frog (Dendrobates auratus) male carrying two tadpoles on its back, Osa Peninsula, Costa Rica

Danny Green / Atlantic Puffins (Fratercula arctica) resting on top of a cliff at dusk, Sule Skerry, Scotland, UK, July

Danny Green / Atlantic Puffin (Fratercula arctica) in flight carrying sand eels back to its chick, Sule Skerry, Scotland, UK, July

Danny Green / Atlantic Puffin (Fratercula arctica) in flight carrying sand eels back to its chick, Sule Skerry, Scotland, UK, July

Danny Green / Atlantic Puffin (Fratercula arctica) carrying sand eels back to its chick, Fair Isle, Shetland Isles, UK, July

Steven Kazlowski / Northern lights / Aurora borealis over the Jago River, Arctic National Wildlife Refuge, Brooks Range, Alaska North Slope, Alaska, USA, September 2014.

Niall Benvie / Kiwi fruit (Actinidia sp) cross section backlit.

Solvin Zankl / Green shield bug (Palomena prasina) pair mating, silhouetted against leaf. Elbtalaue, Lower Saxony, Germany. June.

John Cancalosi / Fluorite, the mineral form of calcium fluoride, backlit specimen, China.

Claudio Contreras / Moorish gecko (Tarentola mauritanica) in stained glass window, Cordoba, Spain, June

Danny Green / White-tailed eagle (Haliaeetus albicilla) in flight at sunset, Norway, August

Danny Green / Osprey (Pandion haliaetus) flying back to her nest, Finland, June.

Solvin Zankl / Sargasso Weed (Sargassum fluitans) and Corwith Cramer, a 134-foot steel brigantine, split level view, Sargasso Sea, Bermuda, April 2014.