Klaus Echle / Red Fox (Vulpes vulpes) walking along a fallen trunk, silhouetted in misty forest. Black Forest, Germany, November.

Wild Wonders of Europe / E. Haarberg / Male Black grouse (Tetrao tertrix) displaying, expiring warm air on a cold morning, Bergslagen, Sweden, April 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...

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) two individuals greeting, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male trying to break into bamboo to feed on ant eggs from a nest, Tangkoko National Park, Sulawesi, Indonesia.

David Pattyn / Black necked grebe (Podiceps nigricollis) frontal view of pair mating, La Dombes lake area, France, April

David Tipling / Grey Squirrel (Sciurus carolinensis) climbing on fence, St James Park, London, UK, October

Alex Hyde / Stinging nettle (Urtica dioica) close up of stinging hairs, the silicified tips of the stinging hairs are brittle and snap off easily if the nettle is brushed. Focus stacked image. UK.

Mark Carwardine / Black bear (Ursus americanus) catching salmon, Princess Royal Island, the Great Bear Rainforest, British Columbia, western Canada

Christophe Courteau / Black heron (Egretta ardesiaca) spreads its wings on the Okavango Detla, Botswana. The birds' wings form an umbrella over the water so they can see and hunt fish more easily

Jeff Rotman / Whitetip reef sharks (Triaenodon obesus) pack silhouetted following scent trail in water column, Cocos Island, Costa Rica, Pacific Ocean

Mark Hamblin / 2020VISION / Silhouette of two male Black grouse (Tetrao tetrix) displaying at lek at dawn, Cairngorms NP, Grampian, Scotland, UK, April. 2020VISION Book Plate.

Tony Heald / Black faced Impala (Aepyceros melamis petersi) female jumping, Etosha National Park, Namibia

Staffan Widstrand / Eurasian / Grey wolf (Canis lupus) watching flying flock of Common raven (Corvus corax) Kuhmo, Finland. September.

Ann & Steve Toon / Black backed jackal (Canis mesomelas) chasing doves from waterhole, Kgalagadi Transfrontier Park, South Africa, January 2012

Orsolya Haarberg / Two Black grouse (Tetrao tetrix) males displaying at lek, Bergslagen, Sweden, April

Markus Varesvuo / Black woodpecker (Dryocopus martius) hammering tree trunk, Posio, Finland, January

Rolf Nussbaumer / Black-necked stilt (Himantopus mexicanus) pair displaying, Dinero, Lake Corpus Christi, South Texas, USA.

Vladimir Medvedev / Tufted Puffin (Fratercula cirrhata) calling, St. Jonah's island, Sea of Okhotsk, Far East Russia, July

Vladimir Medvedev / Whiskered Auklet (Aethia pygmaea) male and female courtship, Jonah's island, Sea of Okhotsk, Far East Russia, July .

Tony Heald / Black rhinoceros (Diceros bicornis) male urine testing, flehmen reaction, Etosha National Park, Namibia October

Klaus Echle / Red fox (Vulpes vulpes) running, Black Forest, Germany, Winner of Fritz Polking portfolio prize , GDT 2011 competition

Klaus Echle / Red fox (Vulpes vulpes) sniffing beech tree trunk, Black Forest, Germany, Winner of Fritz Polking portfolio prize, GDT 2011 competition

Fabrice Cahez / Eurasian griffon vulture (Gyps fulvus) in flight above clouds, Gorges du Tarn, France, January.

Fabrice Cahez / Eurasian griffon vulture (Gyps fulvus) in flight above clouds, Gorges du Tarn, France, January.

Fabrice Cahez / Red-billed chough (Pyrrhocorax pyrrhocorax) perched on rock with one on right calling, Gorges du tarn, France, January.

David Kjaer / Flock of Common Starling (Sturnus vulgaris) gathering before landing at winter roost, Salisbury Plain, Wiltshire, UK, January

Andy Sands / Digger Wasp (Cerceris arenaria) carrying large weevil back to burrow, paralysed as food for larvae. London, England, UK, July.

Andy Sands / Digger Wasp (Cerceris arenaria) emerging from burrow where it stores insects, paralysed to feed the wasp's larvae. London, England, UK, July.

Carol Walker / Mustang / wild horses, second year cremello colt Cremesso, reacting to black colt, McCullough Peak herd, Wyoming, USA, June 2009

Marie Read / Two Black-capped chickadees (Poecile atricapillus) in mid-air fight by a sunflower, New York, USA, February

Roy Mangersnes / Wild Bolivian / Peruvian Squirrel Monkey (Saimiri boliviensis) female carrying young on her back. Madidi National Park, Bolivia.

Alex Mustard / Butter hamlet (Hypoplectrus unicolor) pair spawning at dusk, George Town, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

George Sanker / Black bear (ursus americanus) cub standing on hind legs, Yellowstone National Park, USA, June

Alex Hyde / Bullseye / Io moth (Automeris io) showing eye spot markings on wings during deimatic display to deter predators, originating from North and Central America, sequence 2 of 2. Captive.

Laurie Campbell / Black-headed gulls (Larus ridibundus) robbing Puffin (Fratercula arctica) of catch, Farne Islands, Northumberland, England, June

Terry Whittaker / 2020VISION / Lesser black-backed gulls (Larus fuscus), Herring gulls (Larus argentatus), Black-headed gulls (Larus ridibundus) and Starlings (Sturnus vulgaris) feeding on landfill site, Pitsea, Essex, England, UK,...

Bert Willaert / Pair of mating Mouse Opossums (Marmosops cf. noctivagus) hanging from prehensile tail. Ecuador,

Bert Willaert / Amplectant pair of Natterjack Toads (Epidalea / Bufo calamita) with reflection in water. Belgium, Europe, July.

Juan Carlos Munoz / Jersey tiger moth (Euplagia quadripunctaria) large numbers resting on trunk of Sweetgum tree (Liquidambar orientalis) in the Petaloudes Valley, Rhodes island, Greece, August 2011

Konrad Wothe / Victoria's riflebird (Ptiloris victoriae) male displaying in rainforest, Atherton Tablelands, Queensland, Australia, October

Sven Zacek / Two Black Grouse (Tetrao tetrix) fighting at a lek. Virumaa, Estonia, Europe, April.

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.

Peter Cairns / Black grouse (Tetrao tetrix) male displaying in lekking area, abstract, Cairngorms NP, Highlands, Scotland, UK, April

Anup Shah / Black backed jackal (Canis mesomelas) male grooming female, Masai Mara National Reserve, Kenya

Grzegorz Lesniewski / Black Grouse (Tetrao tetrix) displaying. Biebrza National Park, Biebrza marshes, Poland, April.

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) male displaying at lek site, Cairngorms National Park, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) male in flight at lek, Cairngorms NP, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) male displaying at lek, Cairngorms NP, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) males displaying flutter jump at lek, Cairngorms NP, Grampian, Scotland, UK, April. Did you know? Adult grouse are mostly vegetarian, but their young primarily eat insects...

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) two males displaying and fighting at lek, Cairngorms NP, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) male displaying at lek, Creag Megaidh NNR, Highlands, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) male at lek, Creag Megaidh NNR, Highlands, Scotland, UK, April

Mark Hamblin / 2020VISION / Rear view of Black grouse (Tetrao tetrix) male displaying at lek, Cairngorms National Park, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) male displaying at lek, Cairngorms National Park, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) males fighting at lek site, Cairngorms National Park, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) males fighting at lek site, Cairngorms National Park, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) two males fighting at lek site with mountains in the background, Cairngorms National Park, Grampian, Scotland, UK, April. 2020VISION Exhibition. 2020VISION Book Plate.

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) female at lek on heather moorland with two males displaying nearby, Cairngorms NP, Grampian, Scotland, UK, April

Mark Hamblin / 2020VISION / Black grouse (Tetrao tetrix) male displaying at lek, Cairngorms National Park, Grampian, Scotland, UK, April

Klaus Echle / Red Fox (Vulpes vulpes) walking along a fallen trunk in misty forest. Black Forest, Germany, November.

Klaus Echle / Red Fox (Vulpes vulpes) licking a tree trunk while another walks in the foreground. Black Forest, Germany, November.

Klaus Echle / Lynx (Lynx lynx) holding its fawn kill by the neck. The Black Forest, Germany, October. Captive

Klaus Echle / Red Fox (Vulpes vulpes) digging a den hole under a tree stump. Black Forest, Germany, July.

Klaus Echle / Hoopoe (Upupa epops) carrying large insect (possibly Mole Cricket) in flight in vineyard. Black Forest, Germany, June.

Klaus Echle / Kingfisher (Alcedo atthis) flying with fish to branch over snow banked stream. Black Forest, Germany, January.

Piotr Naskrecki / Looper Moth (Geometridae) caterpillar with aposematic coloration, Atewa Range, Ghana

Rolf Nussbaumer / Black and yellow Mud Dauber (Sceliphron caementarium) female collecting mud for her nest. Comal County, Hill Country, Central Texas, USA, July.

Andy Rouse / Black grouse (Tetrao tetrix) male displaying at lek, UK, May

David Tipling / 2020VISION / Black-tailed godwit (Limosa limosa) taking off from tidal pool, Snettisham RSPB reserve, Norfolk, UK, March. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? The black-tailed godwit's bill...

Bence Mate / Leaf cutter ants (Atta sp) female worker ants carry pieces of fern leaves to nest, reflected in water, Costa Rica, December. Winner, Eric Hosking award, 2011 Wildlife Photographer of the Year competit...

Bence Mate / Great egret (Ardea alba) drops a fish from its beak and a Black headed gull (Larus ridibundus) flies in to catch it. Lake Csaj, Kiskunsagi NP, Hungary, January. Winner, Eric Hosking award, 2011 Wildli...

Klaus Echle / Badger (Meles meles) running, Black Forest, Germany, May

Klaus Echle / Badger (Meles meles) running, Black Forest, Germany, May

Nature Production / Asiatic black bear (Ursus thibetanus) cub climbing tree, Russia, spring

Bernard Castelein / Hoolock Gibbon (Hylobates hoolock) male hanging from a branch. Assam, India, February.

Steve Nicholls / Huge flock of Common starlings (Sturnus vulgaris) flying in to roost over the reed beds at dusk, Ham Wall nature reserve, Somerset, UK, January

Lassi Rautiainen / Black woodpecker (Dryocopus martius) male feeding on tree trunk with beak open showing tongue, Finland, March

Matthew Maran / Black Bear (Ursus americanus) with a Chinook Salmon (Oncorhynchus tshawytscha) in its mouth. Ucluth Inlet, Barkley Sound, Vancouver Island, Canada, September.

Matthew Maran / Black Bear (Ursus americanus) with a Chinook Salmon (Oncorhynchus tshawytscha) in its mouth. West coast of Vancouver Island, Canada, October.

Juergen Freund / Coconut / Veined octopus (Octopus marginatus) ready to flee from its coconut shell home. Lembeh Strait, North Sulawesi, Indonesia.

Terry Whittaker / 2020VISION / Pine marten (Martes martes) two 4-5 month kits running along branch of tree in caledonian forest, The Black Isle, Highlands, Scotland, UK, July. Photographer quote: 'Watching a family of young pine ma...

Andy Rouse / Black Grouse (Tetrao tetrix) male displaying at a lek. UK, Europe, May.

Tony Heald / Black Rhinoceros (Diceros bicornis) running. Etosha National Park, Namibia, January.

Tony Heald / Black Rhinoceros (Diceros bicornis) charging. Etosha National Park, Namibia, January.

Anup Shah / Black-backed jackal (Canis mesomelas) male defending a kill from vultures after lions have finished - wide angle perspective, Masai Mara National Reserve, Kenya. February

Anup Shah / White-backed vultures (Gyps africanus) and Black-back jackal (Canis mesomelas) feeding from the carcass of a Cape buffalo (Cyncerus caffer) - wide angle perspective. Masai Mara National Reserve, Kenya...

Anup Shah / Cape / African Buffalo (Syncerus caffer) approaching with curiosity, herd in the background, wide angle perspective, Masai Mara National Reserve, Kenya. September

Anup Shah / Common / Plains Zebra (Equus quagga burchellii) close up view of under belly - wide angle perspective. Masai Mara National Reserve, Kenya. August

Nick Upton / Hoverfly (Myathropa florea), using proboscis to feed on pollen from anthers of Ivy flowers (Hedera helix). Wiltshire garden, UK, September

Florian Möllers / Silhouette of Black tern (Chlidonias niger) adult feeding chick on artificial breeding island, Lake Mueggelsee, Berlin, Germany, July

Florian Möllers / Silhouette of Black tern (Chlidonias niger) adult feeding chick on artificial breeding island, Lake Mueggelsee, Berlin, Germany, July

Tony Heald / Black Rhinoceros [Diceros bicornis] drinking, Etosha National Park, Namibia, August

Solvin Zankl / Lars Hendrickson watching Black piston water beetles (Hydrophilus aterrimus) feeding on a tadpole, State Collection in Munich, Germany, June

Pete Oxford / Black caiman (Melanosuchus niger) catching prey beside fisherman in boat at night, rainforest, Rupununi, Guyana, Endangered