Oliver Hellowell / RF - Snowdrops (Galanthus sp.) in flower on woodland floor, Blackdown hills, Somerset, UK. February. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Robin (Erithacus rubecula) perched on mossy branch, Bishopswood, Somerset, UK. May. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Chaffinch (Fringilla coelebs) male, perched on lichen covered branch, Glencoe, Scotland, UK. October. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Robin (Erithacus rubecula) perched on on mossy log, Bishopswood, Somerset, UK. April. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Greenfinch (Chloris chloris) male, perched on mossy log, Bishopswood, Somerset, UK. April. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - European goldfinch (Carduelis carduelis) perched in Apple tree (Malus domestica), Bishopswood, Somerset, UK. April. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / RF - Great spotted woodpecker (Dendrocopos major) juvenile, perched on mossy log, Bishopswood, Somerset, UK. June. Cropped. (This image may be licensed either as rights managed or royalty free.)

Oliver Hellowell / Lenten rose (Helleborus orientalis) in flower, UK. February.

Oliver Hellowell / Snowdrops (Galanthus sp.) in flower on woodland floor, Blackdown Hills, Somerset, UK. February.

Oliver Hellowell / Starling (Sturnus vulgaris) feeding on fat and seed filled coconut shell bird feeder, Bishopswood, Somerset, UK. March.

Oliver Hellowell / Maple tree (Acer sp.) with autumnal foliage overhanging pond, Glencoe Lochan, Glencoe, Scotland, UK October.

Oliver Hellowell / Blue tit (Cyanistes caeruleus) perched on mossy stump, Bishopswood, Somerset, UK. September. Cropped.

Oliver Hellowell / Robin (Erithacus rubecula) perched on mossy log with Bluebells (Hyacinthoides non-scripta) in background, Bishopswood, Somerset, UK. May. Cropped.

Oliver Hellowell / Robins (Erithacus rubecula ) pair perched on mossy log performing courtship display, with Bluebells (Hyacinthoides non-scripta) in background, Bishopswood, Somerset, UK. May. Cropped.

Oliver Hellowell / Great tit (Parus major) perched on lichen covered branch, Bishopswood, Somerset, UK. April. Cropped.

Oliver Hellowell / Marsh tit (Poecile palustris) perched on Flowering currant (Ribes sanguineum) stem, Bishopswood, Somerset, UK. April. Cropped.

Jack Dykinga / Long Canyon at the confluence with The Gulch, lined with peak colored Cottonwood trees (Populus sp.) and Sage brush (Artemisia sp.) in the foreground, Grand Staircase-Escalante National Monument, Utah...

Jack Dykinga / Two fallen Douglas fir trees (Pseudotsuga menziesii) across a forest trail in temperate rainforest, Hoh Rain Forest, Olympic National Park, Washington, USA. June.

Jack Dykinga / Magellan's beech tree (Nothofagus betuloides) clinging to the cliffs above El Salto Grande, where the glacial waters from Lago Nordenskjold pour into Lago Pehoe, Torres del Paine National Park, C...

Jack Dykinga / Tickseed (Coreopsis sp.) and Owl clover (Castilleja exserta) carpeting the Carrizo Plain in the foothills of the Temblor Range, Caliente Range foothills. California, USA. March.

Jack Dykinga / Alluvial watercourse drying and cracking after winter El Nino rains with a trails of flowering Desert golds (Geraea canescens) at the base of the Amargosa Mountains, Death Valley National Park, Califo...

Jack Dykinga / Desert golds (Geraea canescens) flowering after El Nino rains among the basalt hillsides of the Black Mountains, Amargosa Range, Death Valley National Park, California, USA. January.

Jack Dykinga / Desert golds (Geraea canescens) flowering after El Nino rains among the basalt hillsides of the Black Mountains, Amargosa Range, Death Valley National Park, California, USA. January.

Jack Dykinga / Dense stands of American aspen (Populus tremuloides) in autumnal colours, Dixie National Forest, Boulder Mountain, Utah, USA. October.

Jack Dykinga / American aspen (Populus tremuloides) forest in autumnal colours, Dixie National Forest, Boulder Mountain, Utah, USA. October.

Jack Dykinga / Old growth moss covering Western hemlock (Tsuga heterophylla) trees on a misty morning, Jedediah Smith Redwoods State Park, California, USA. June.

Jack Dykinga / Desert lilies (Hesperocallis undulata) flowering among dunes at dawn, Mohawk Dunes, Barry M. Goldwater Range, Sonoran Desert, Arizona, USA. March.

Jack Dykinga / Ocotillos (Fouquieria splendens) in flower, Eagletail Mountain Wilderness, Arizona, USA. March.

Tim Laman / Little blue heron (Egretta caerulea) juvenile, perched among a wall of Red mangroves (Rhizophora mangle) in early morning light, at the edge of a lagoon in Caroni Swamp, Trinidad and Tobago.

Alan Williams / Potato (Solanum tuberosum) plant in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) plant in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) crop in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) plant in flower in farm field, Cheshire, UK. June.

Alan Williams / Potato (Solanum tuberosum) crop in flower in farm field, Cheshire, UK. June.

Alan Williams / Newly planted Potato (Solanum tuberosum) crop, Cheshire UK. May.

Alan Williams / Ripening Barley (Hordeum distichon) crop blowing in the wind, Wirral, Cheshire, UK. July.

Manuel Gracia / European roller (Coracias garrulus) pair performing courtship feeding ritual and then mating. The male enters frame and presents an insect, the female takes the food and then they mate. After mating,...

Manuel Gracia / Close up of European roller (Coracias garrulus) pair performing courtship feeding ritual and then mating. The male enters frame and presents an insect, the female takes the food and then they mate. A...

Manuel Gracia / Close up of European roller (Coracias garrulus) female perched, holding an insect in her beak. The bird looks around and then flies out of frame. Seville, Spain. (Sequence 2/2).

Manuel Gracia / European roller (Coracias garrulus) pair performing courtship feeding ritual. The male is perched and the female lands on perch with food and then the male tries to take food from female. Seville, Spa...

Manuel Gracia / European roller (Coracias garrulus) perched on a branch. Another Roller enters the frame and lands on the same perch. The birds call and display to each other and then they're attacked by a Common kes...

Manuel Gracia / European rollers (Coracias garrulus) perched. Another bird enters frame and lands on the perch with others. Then the animals fight, over the nest, leaving the frame briefly. Seville, Spain.

Manuel Gracia / European roller (Coracias garrulus) enters the frame and lands on the perch. Another roller continuously attacks the perched bird, causing it to flee. The bird leaves the frame briefly and then return...

Jacob Guy / Pygmy squid (Idiosepius pygmaeus) resting on plant, Lembeh Strait, Indonesia.

Jabruson Motion / Tracking shot of Eastern mountain gorilla (Gorilla beringei beringei) male walking through troop while juveniles and female move out of the way, Virunga National Park, Democratic Republic of Congo. 19...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile swinging on overhanging vine, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile clambering over head and shoulders of young male. The camera moves closer and focuses on young male. Virunga National Park, Democratic Rep...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile climbing down a vine and sitting on young male. Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) young male eating. The gorilla becomes aware of the camera and stops eating, then the animal stares at the camera. Virunga National Park, Democrati...

Jabruson Motion / Tracking shot of Eastern mountain gorilla (Gorilla beringei beringei) young male moving past the camera with a twig in its mouth. The goriilla sits down in the undergrowth. Virunga National Park, Demo...

Jabruson Motion / Close up of Eastern mountain gorilla (Gorilla beringei beringei) young male head looking inquisitively at the camera. The gorilla has a twig in its mouth. Virunga National Park, Democratic Republic of...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) young male walking toward camera. Then the animal stops and looks down at the camera in fascination. The gorilla has a twig in its mouth. Virunga N...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) climbing up small branch. The animal stops climbing the branch, when it realises it is too heavy for it and the branch bends over. Virunga Nationa...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female lying on day bed, scratching her chest, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile peering over small branch and then looking inquisitively at the camera. The animal moves away and sits down with male gorilla, in the back...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female and juvenile sitting on bed of vegetation. The juvenile peers over shoulder of female and then looks inquisitively at the camera. Virunga Na...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female sitting on bed of vegetation, looking at juvenile which enters frame and walks past. Virunga National Park, Democratic Republic of Congo. 19...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female sitting on day bed and grooming, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female sitting on day bed and grooming, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female sitting on day bed, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female walking through vegetation and then sitting down on her day bed, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Close up of Eastern mountain gorilla (Gorilla beringei beringei) hands holding a branch, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juveniles playing. One juvenile is swinging on a vine and then the other animal pulls them off it and onto the ground. Virunga National Park, Democ...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile and adult sitting side by side. The young gorilla is grooming whilst the adult watches. Virunga National Park, Democratic Republic of Cong...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) habitat and Virunga volcano, Mount Mikeno, Virunga National Park, Democratic Republic of Congo.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile swinging on a overhanging vine. Another juvenile emerges from vegetation and pulls the other gorilla off the vine. Virunga National Park,...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile looking at the camera and swinging on a overhanging vine. The young gorilla stops playing and sits down in the vegetation. Virunga Nationa...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile swinging on a overhanging vine. Another juvenile steals the vine and then an adult comes over to intervene, stopping a forthcoming fight....

Neil Aldridge / African lion (Panthera leo) pride watching from long grass, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) wading through water, meeting another lion on the bank. The two lions bound towards each other, playing, eventually disappearing into the long grass. Khwai, Okavango Delta,...

Neil Aldridge / African lion (Panthera leo) female climbing down a fallen tree and then leaving the frame, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) female lying on a fallen tree. The animal sniffs the tree and then stands up and looks around. Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) female sniffing while lying down on a fallen tree, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) female walking through Kalahari scrub in evening light, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) male standing in long grass and looking around, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) male standing in long grass and looking around. The animal walks out of the frame. Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) stalking through water, Khwai, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) male lying in long grass and grooming his mane, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) female walking through long grass towards the camera, Khwai, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) female lying down in shaded grassy patch, grooming herself. The animal licks her paw which is covered in blood and mud and then looks round. Khwai, Okavango Delta, Botswana...

Neil Aldridge / African lion (Panthera leo) female lying down in shaded grassy patch. The animal stands up and walks out of frame. Khwai, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) female lying down in shaded grassy patch and looking while she is grooming herself. The animal is licking her paw which is covered in blood and mud. Khwai, Okavango Delta,...

Neil Aldridge / Tracking shot of African lion (Panthera leo) mother walking through Kalahari scrub with two cubs. Then the mother lies down. Okavango Delta, Botswana.

Neil Aldridge / Tracking shot of African lion (Panthera leo) female walking through long grass in early morning light, Okavango Delta, Botswana.

Neil Aldridge / Tracking shot of African lion (Panthera leo) female walking through long grass in early morning light, Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) female walking through long grass in early morning light in the Okavango Delta, Botswana.

Neil Aldridge / Tracking shot of African lion (Panthera leo) female walking through long grass in early morning light. The animal leaves the frame. Okavango Delta, Botswana.

Neil Aldridge / African lion (Panthera leo) mother with cubs. The cubs walk around while the mother yawns and defecates. Okavango Delta, Botswana.

Wim van den Heever / Quiver trees (Aloe dichotoma) at night with the Milky Way in sky above, Keetmanshoop, Namibia.

Wim van den Heever / Quiver trees (Aloe dichotoma) at night with the Milky Way in sky above, Keetmanshoop, Namibia.

Wim van den Heever / Quiver trees (Aloe dichotoma) backlit by setting sun, Keetmanshoop, Namibia.

Wim van den Heever / Quiver trees (Aloe dichotoma) backlit at sunrise, Keetmanshoop, Namibia.

Wim van den Heever / Quiver trees (Aloe dichotoma) at night with the Milky Way in sky above, Keetmanshoop, Namibia.

Wim van den Heever / Quiver trees (Aloe dichotoma) in desert landscape against blue sky, Keetmanshoop, Namibia.

Wim van den Heever / Quiver tree (Aloe dichotoma) in rocky desert under a starry sky, Keetmanshoop, Namibia.

Wim van den Heever / Quiver tree (Aloe dichotoma) close up of branches, Keetmanshoop, Namibia.