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 - Robin (Erithacus rubecula) juvenile, perched on branch, Bishopswood, Somerset, UK. May. 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 - 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 / RF - Blue tit (Cyanistes caeruleus) perched on a bare branch, Bishopswood, Somerset, UK. October. Cropped. (This image may be licensed either as rights managed or royalty free.)

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

Oliver Hellowell / Fly agaric mushroom (Amanita muscaria) on woodland floor, Glencoe lochan, Glencoe, Scotland, UK. October. 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.

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 / 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.

Lucas Bustamante / Family of Jaguars (Panthera onca) walking along forest trail passing by a camera trap, Orange Walk, Maya Forest, Belize. Camera trap.

Alan Williams / View across forests and hills to Moel Siabod on the left with Mount Snowdon behind, Snowdonia, North Wales, UK. October, 2022.

Alan Williams / View looking south east towards the Pen-y- garreg reservoir in the Elan Valley in autumn, near Rhayader, Powys, Wales, UK. November, 2022.

Daniel Nunez / Miyat's tree frog (Dendropsophus miyatai) resting on a leaf in the Amazon rainforest, Loreto, Peru. Cropped.

Daniel Nunez / Miyat's tree frog (Dendropsophus miyatai) peering over the edge of a leaf in the Amazon rainforest, Loreto, Peru. Cropped.

Daniel Nunez / Smooth fronted caiman (Paleosuchus trigonatus) with mouth open, head portrait, Amazon rainforest, Loreto, Peru. Cropped.

Daniel Nunez / Yuruani glass frog (Hyalinobatrachium iaspidiense) portrait, Amazon rainforest, Loreto, Peru. Cropped.

Joel Sartore / Photo Ark / Bridled forest gecko (Gonatodes humeralis) portrait, Centro de Rescate Amazonico, Iquitos, Peru. Captive.

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 / 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 / Close up of Eastern mountain gorilla (Gorilla beringei beringei) juvenile head looking at camera. The camera zooms out and the juvenile gorilla moves to another gorilla, sitting in undergrowth, for co...

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) juvenile looking inquisitively at the camera. In the background, a female is sitting in the undergrowth and eating. Virunga National Park, Democra...

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 / 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....

Nick Upton / Long-tailed tit (Aegithalos caudatus) foraging perched on English Oak (Quercus robur), Forest of Dean, Gloucestershire, UK, December.

Nick Upton / Goosander (Mergus merganser) female taking flight from River Wye, Forest of Dean, Gloucestershire, UK, October.

Roland Seitre / Ground nesting site of Bahama parrot (Amazona leucocephala bahamensis) in native palm forest, Abaco Islands, Bahamas. Endangered.

Nick Upton / Mallard (Anas platyrhynchos) flock resting on frozen pond, Cannop Ponds, Forest of Dean, Gloucestershire, UK, December.

Nick Upton / Mallard (Anas platyrhynchos), Common teal (Anas crecca) and Wigeon (Anas penelope) flock standing on frozen lake, Cannop Ponds, Forest of Dean, Gloucestershire, UK, December.

Nick Upton / Treecreeper (Certhia familiaris) foraging for invertebrates beneath mossy tree branch, Forest of Dean, Gloucestershire, UK, December.

Nick Upton / Raven (Corvus corax) in flight, Forest of Dean, Gloucestershire, UK, December.

Nick Upton / Nuthatch (Sitta europaea) climbing dead tree, New Forest, Hampshire, UK, January.

Nick Upton / New Forest pony (Equus caballus) grazing grassland on the margins of a frozen heathland pool, New Forest, Hampshire, UK. January.

Nick Upton / New Forest pony (Equus caballus) grazing grassland on the margins of a frozen heathland pool, New Forest, Hampshire, UK. January.

Nick Upton / Mute swans (Cygnus olor) and Mallards (Anas platyrhynchos) swimming and resting on a partially frozen pond, Cannop Ponds, Forest of Dean, Gloucestershire, UK, December.

Nick Upton / Mallard (Anas platyrhynchos) female carrying English oak (Quercus robur) acorn in beak whilst swimming, Cannop Ponds, Forest of Dean, Gloucestershire, UK, November.

Nick Upton / Discarded dog poo bag inappropriately left hanging in a tree along a pubic footpath, New Forest, Hampshire, UK. January.

Nick Upton / Discarded dog poo bag inappropriately left hanging in a tree along a pubic footpath, New Forest, Hampshire, UK. January.

Nick Upton / Fallow deer (Dama dama) juvenile stag, crossing a hoar- frosted heathland clearing on a cold winter morning, New Forest, near Fritham, Hampshire, UK. January.

Nick Upton / Great cormorant (Phalacrocorax carbo) juvenile taking off from water, Cannop Ponds, Forest of Dean, Gloucestershire, UK, October.

Nick Upton / Great cormorant (Phalacrocorax carbo) juvenile in flight, Cannop Ponds, Forest of Dean, Gloucestershire, UK, October.

Nick Upton / Ultrasonic microphone and recorder on a floating raft on lake, used to monitor foraging bats, Cannop Ponds, Forest of Dean, Gloucestershire, UK. September.

Nick Upton / Ultrasonic microphone and recorder attached to a tree, used for monitoring foraging bats, Cannop Ponds, Forest of Dean, Gloucestershire, UK. September.

Roland Seitre / Park warden pointing to entrance of ground nesting site of Bahama parrot (Amazona leucocephala bahamensis) in native palm forest, Abaco Islands, Bahamas. May, 2021. Endangered.

Roland Seitre / Native Caribbean pine (Pinus caribaea) and Palm (Arecaceae) forest, Abaco Islands, Bahamas. April, 2021.

Roland Seitre / Dead Pine (Pinus sp.) forest, the aftermath of Hurricane Dorian in 2019, Marsh Harbour, Abaco Islands, Bahamas. April, 2021.

Roman Willi / RF - Northern tamandua (Tamandua mexicana) resting on branch, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)

Roman Willi / RF - Emerald glass frog (Espadarana prosoblepon) resting on leaf, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)

Roman Willi / Roe deer (Capreolus capreolus) female, standing in woodland undergrowth, Lucerne, Switzerland. May.

Roman Willi / Roe deer (Capreolus capreolus) male, standing on woodland track, Lucerne, Switzerland. May.

Roman Willi / Shield bug (Pentatoma rufipes) portrait, Lucerne, Switzerland. May. Focus stacked image.

Roman Willi / Mantled howler (Alouatta palliata) sitting on branch, Osa Peninsula, Costa Rica.

Roman Willi / Northern tamandua (Tamandua mexicana) sleeping outstretched on a branch, Osa Peninsula, Costa Rica.

Roman Willi / Spectacled owl (Pulsatrix perspicillata) perched on branch in rainforest, Osa Peninsula, Costa Rica.

Roman Willi / Resplendent quetzal (Pharomachrus mocinno) male, perched in lichen covered tree in cloud forest, Monteverde, Costa Rica.

Kirkendall-Spring / Rocky coastline along 4th Beach, Olympic National Park, Washington, USA. July, 2022.

Kirkendall-Spring / Trees on mountainside shrouded in fog, near Norway Pass, Mount St Helens National Volcanic Monument, Cascade Mountains, Washington, USA. July, 2022.

Kirkendall-Spring / The Lahar deviation area at sunrise covered in low cloud, Mount St Helens National Volcanic Monument, Cascade Mountains, Washington, USA. July, 2022.

Kirkendall-Spring / RF - New forest growth in the Lahar deviation area with low cloud at sunrise, Mount St Helens National Volcanic Monument, Cascade Mountains, Washington, USA. July, 2022. (This image may be licensed ei...

Kirkendall-Spring / Snowcapped Mount Anderson viewed from the Enchanted Valley, Olympic National Park, Washington, USA. June, 2022.

Kirkendall-Spring / Ferns and moss covered trees along the Quinault Nature Loop Trail in the Quinault River Valley, Olympic National Park, Washington, USA. June.

Kirkendall-Spring / RF - Woman carrying backpack crossing wooden bridge over the Quinault River, Olympic National Park, Washington, USA. June, 2022. Model released. (This image may be licensed either as rights managed or...

Kirkendall-Spring / Ferns and moss covered trees along the Quinault Nature Loop Trail in the Quinault River Valley, Olympic National Park, Washington, USA. June.

Kirkendall-Spring / Woman hiking along trail next to the Quinault River, Olympic National Park, Washington, USA. June, 2022. Model released.

Kirkendall-Spring / Woman crossing Pony Bridge while hiking in the Quinault River Valley, Olympic National Park, Washington, USA. June, 2022. Model released.

Juergen Freund / Volunteer at the Tolga Bat Hospital cradling three juvenile Spectacled flying foxes (Pteropus conspicillatus) rescued by volunteers from a nearby forest, after their mothers died from the effects of p...

Emanuele Biggi / La Palma glass frogs (Hyalinobatrachium valerioi) mating pair, on a leaf with egg-clutches from previous matings nearby. The males stay and defend the eggs, even mimicking them in colouration to act a...

Emanuele Biggi / Strawberry poison-dart frog (Oophaga pumilio) 'blue jeans' colour morph, resting on a leaf, Centro Manu, Costa Rica.

Emanuele Biggi / Strawberry poison-dart frog (Oophaga pumilio) 'blue jeans' colour morph, resting on a leaf, Centro Manu, Costa Rica.

Juergen Freund / Waterfall at Nandroya Falls falling into lake, Atherton Tablelands, Queensland, Australia.

Juergen Freund / Waterfall at Millaa Millaa Falls falling into lake, Atherton Tablelands, Queensland, Australia.

Juergen Freund / Australian king parrot (Alisterus scapularis) flock flying through rainforest and landing on branch before taking off again, entering and leaving frame, Atherton Tablelands, Queensland, Australia.

Juergen Freund / Australian king parrots (Alisterus scapularis) entering frame, flying through rainforest and landing on branch, with some taking off and leaving frame, Atherton Tablelands, Queensland, Australia.