Chris Mattison / Six-lined long-tailed lizard (Takydromus sexlineatus), captive, occurs South East Asia

Erlend Haarberg / Male Long-tailed duck (Clangula hyemalis) in flight, just after taking off, Myvatn, Iceland, June

Ben Hall / Long tailed tits (Aegithalos caudatus) pair perched on pine branch in snowfall, Cheshire, UK March

Vladimir Medvedev / Amur long-tailed goral (Naemorhedus caudatus raddeanus) a rare ungulate in the Amur-Heilong basin, captive animal, Lazovskiy zapovednik, Far East Russia, vulnerable species

George Sanker / Long-tailed weasel (Mustela frenata) standing on hind legs, Yellowstone National Park, Wyoming, USA, June

Grzegorz Lesniewski / Long-tailed Tit (Aegithalos caudatus) portrait. Bieszczady National Park, the Carpathians, Poland, March.

Richard Du Toit / Long-tailed Widow (Euplectes progne) male in breeding plumage, South Africa

Juergen Freund / Lunar tailed rock cod / Coronation grouper (Variola louti) swimming fast over coral reef, Bali, Indonesia

Chris Shields / Illustration of wildlife of the Andes: South America Alpaca (Vicugna pacos),centre; Cougar / Puma / Mountain lion / Mountain cat / Catamount / Panther (Puma concolor),left; Spectacled / Andean bear (...

Suzi Eszterhas / Long tailed macaque (Macaca fascicularis) trying to take banana from Sumatran Orangutan (Pongo abelii and young baby, North Sumatra, Indonesia. Critically Endangered

Edwin Giesbers / Long-tailed / Crab-eating macaque (Macaca fascicularis) head portrait of baby, Bako National Park, Sarawak, Borneo, Malaysia

Edwin Giesbers / Two Long-tailed / Crab-eating macaques (Macaca fascicularis) foraging on coastline at low tide, Bako National Park, Sarawak, Borneo, Malaysia

Edwin Giesbers / Four Long-tailed / Crab-eating macaques (Macaca fascicularis) foraging on coastline in shallow water with waves, Bako National Park, Sarawak, Borneo, Malaysia

Edwin Giesbers / Long-tailed / Crab-eating macaque (Macaca fascicularis) foraging on coastline, Bako National Park, Sarawak, Borneo, Malaysia

Edwin Giesbers / Two Long-tailed / Crab-eating macaques (Macaca fascicularis) foraging along coastline in shallow water, Bako National Park, Sarawak, Borneo, Malaysia

Edwin Giesbers / Long-tailed / Crab-eating macaque (Macaca fascicularis) feeding in darkness before dawn, Bako National Park, Sarawak, Borneo, Malaysia

Steve Knell / Long-tailed duck (Clangula hyemalis) male in summer plumage, taking off from river, Iceland, May

Stephen Dalton / Blue tits (Parus caeruleus) feeding at nut feeder, Long tailed tit (Aegithalos caudatus) flying to feeder, UK

Solvin Zankl / Mating swarm of Long-tailed / Tisza mayflies (Palingenia longicauda) Tisza river, Hungary, Every female is approached by several mature males. Eventually the female mates with one of them on the water...

Solvin Zankl / Mating swarm of Long-tailed / Tisza mayfly(Palingenia longicauda) Every female is approached by several mature males. Eventually the female mates with one of them on the water surface. June 2008

Solvin Zankl / Aquatic larva of the Long-tailed / Tisza mayfly(Palingania longicauda) shoveling and digging. These larvae live for several years in the clay of the river bed of the Tisza River. Hungary, Central Euro...

Solvin Zankl / Aquatic larva of the Long-tailed / Tisza mayfly(Palingania longicauda) These larvae live for several years in the clay of the river bed of the Tisza River. Hungary, Central Europe.

Solvin Zankl / Female Long-tailed / Tisza mayfly (Palingani a longicauda) rise up in the air soon after mating, where they form huge swarms and are out of range from males still searching for mates close to the wate...

Solvin Zankl / Female Long-tailed / Tisza mayfly (Palingani a longicauda) rise up in the air soon after mating, where they form huge swarms and are out of range from males still searching for mates close to the wate...

Solvin Zankl / Just three hours after they hatch from the water and moult into mature adults, the male Long-tailed / Tisza mayfly (Palingenia longicauda) perish. Adult mayflies have no mouth opening and no guts. The...

Solvin Zankl / Immediately after hatching from their aquatic larval skin the subadult male Long-tailed / Tisza mayfly(Palingania longicauda) flies towards the river bank to land on a leaf. Here it will undergo its l...

Solvin Zankl / Immediately after hatching from their aquatic larval skin the subadult male Long-tailed / Tisza mayfly (Palingania longicauda) flies towards the river bank to land on a leaf. Here it will undergo its...

Solvin Zankl / Male Long-tailed / Tisza mayfly (Palingania longicauda) concludes its last moult. By starting to fly hard towards the river the mayfly pulls its long caudal tails out of the old skin which will be lef...

Solvin Zankl / Male and female Long-tailed / Tisza mayfly (Palingania longicauda) mating, River Tisza, Hungary, Central Europe. June 2008

Solvin Zankl / Male Long-tailed / Tisza mayfly (Palingania longicauda) undergoing moult, River Tisza, Hungary, Central Europe. June The old skin opens at the back of the animal and will be left behind on the leaf l...

Gerrit Vyn / Adult male Long-tailed Duck (Clangula hyemalis) in winter plumage preparing to land. Three females are following. Ocean County, New Jersey, USA, January.

Andy Rouse / Long tailed tit (Aegithalidae caudatus) perched on branch, UK

Wild Wonders of Europe / Bergmann / Long tailed skua (Stercorarius longicaudus) in flight, Thingeyjarsyslur, Iceland, June 2009

Wild Wonders of Europe / Bergman / Long tailed skua (Stercorarius longicaudus) in flight, Thingeyjarsyslur, Iceland, June 2009

Wild Wonders of Europe / Liodden / Long-tailed duck (Clangula hyemalis) in flight over water, Spitsbergen, Svalbard, Norway, June 2009

Wild Wonders of Europe / Liodden / Long tailed duck (Clangula hyemalis) on water, Spitsbergen, Svalbard, Norway, June 2009

Wild Wonders of Europe / O Haarberg / Long-tailed duck (Clangula hyemalis) resting, Mvatn, Iceland, June 2008

Bruno D'Amicis / Long tailed duck (Clangula hyemalis) male. Baltic sea coast, Germany

Gabriel Rojo / Long tailed meadowlark {Sturnella loyca} El Condorito NP, Argentina

Rolf Nussbaumer / Long tailed skua / jaeger in flight {Stercorarius longicaudus} Norway.

Michael Quinton / Long-tailed Weasel (Mustela frenata) camouflaged in white winter coat, Idaho

Gertrud & Helmut Denzau / Long tailed tailorbird {Orthotomus sutorius} male takes material to line nest inside leaf that it has stitched together, India

Tom Vezo / Male Whitetail deer {Odocoileus virginianus} Long Is, New York, USA

Pete Oxford / Long Tailed Hermit Hummingbird (Phaethornis superciliosus) C Ecuador, South-America. Yasuni NP

Anup Shah / Crab eating / Long tailed macaque (Macaca fascicularis) feeding on Horseshoe crab, Sumatran Coast Indonesia

Anup Shah / Crab eating / Long tailed macaque (Macaca fascicularis) swimming, Sumatran Coast, Indonesia

Anup Shah / Crab eating / Long tailed macaque (Macaca fascicularis) swimming, Sumatran Coast, Indonesia

WILLIAM OSBORN / Long tailed tit & sallow flowers UK

Juan Manuel Borrero / Illustration of Woodmouse / Long-tailed Field Mouse (Apodemus sylvaticus). Pencil and watercolor painting.

Colin Varndell / Long-tailed tit (Aegithalos caudatus rosaceus). Dorset, UK, February.

Christophe Courteau / Juvenile Crab eating / Long tailed macaque (Macaca fascicularis) eating nut. Bako National Park, Sarawak, Borneo, Malaysia

Christophe Courteau / Two Crab eating / Long tailed macaques (Macaca fascicularis) grooming, Bako National Park, Sarawak, Borneo, Malaysia

Oriol Alamany / Magpie / Long tailed shrike (Urolestes melanoleucus), Kruger National Park, Transvaal, South Africa, September.

Mark Taylor / Crab eating macaque (Macaca fascicularis) juvenile sitting portrait, Indonesia

Mark Taylor / Crab eating macaque (Macaca fascicularis) sitting in tree, Rinjani, Lombok, Indonesia

Mark Taylor / Crab eating macaque (Macaca fascicularis) female with baby on back, Rinjani, Lombok, Indonesia

Mark Taylor / Crab eating macaque (Macaca fascicularis) female, Rinjani, Lombok, Indonesia

Mark Taylor / Crab eating macaque (Macaca fascicularis) female, Rinjani, Lombok, Indonesia

Mark Taylor / Crab eating macaque (Macaca fascicularis) female, Rinjani, Lombok, Indonesia

Erlend Haarberg / Long tailed ducks (Clangula hyemalis) landing on water, Myvatn, Iceland, June

Chris Mattison / Six-lined long-tailed lizard (Takydromus sexlineatus), captive, occurs South East Asia

Tui De Roy / Long tailed woodcreeper (Deconychura longicauda) on tree trunk, San Isidro, Eastern Slope Tropical Andes, Andean Cloud Forest, East slope, Ecuador

Tim Fitzharris / Long-tailed Sylph (Aglaiocercus kingi) feeding on flower nectar, Jurong Bird Park, Singapore

Charlie Summers / Magpie / African long-tailed shrike (Urolestes melanoleucus) Tarangire National Park, Tanzania

Nick Upton / 2020VISION / Mother and children looking at young Wood mouse / Long-tailed field mouse (Apodemus sylvaticus) live-trapped during a Bioblitz survey at Abbots Pool and woodland reserve, Bristol, UK, June 2012. Model...

Nick Upton / 2020VISION / Young Wood mouse / Long-tailed field mouse (Apodemus sylvaticus) live-trapped during a Bioblitz survey at Abbots Pool and woodland reserve, Bristol, UK, June 2012.

Nick Upton / 2020VISION / Children looking at young Wood mouse / Long-tailed field mouse (Apodemus sylvaticus) live-trapped during a Bioblitz survey at Abbots Pool and woodland reserve, Bristol, UK, June 2012. Model released

Michael D. Kern / Oriental long-tailed grass lizard (Takydromus sexlineatus) captive, from Asia

Vladimir Medvedev / Long-tailed Clawed Salamander (Onychodactylus fischeri) on wet rock. Primorskiy Krai, Far East Russia.

Vladimir Medvedev / Long-tailed Clawed Salamander (Onychodactylus fischeri) on wet rock. Primorskiy Krai, Far East Russia.

Vladimir Medvedev / Long-tailed Clawed Salamander (Onychodactylus fischeri) on wet rock. Primorskiy Krai, Far East Russia.

Vladimir Medvedev / Long-tailed Clawed Salamander (Onychodactylus fischeri) on wet rock. Primorskiy Krai, Far East Russia.

Ernie Janes / Long tailed tit (Aegithalos caudatus) perched, UK

Wild Wonders of Europe / Préau / Man measuring Long tailed tit (Aegithalos caudatus) wing, caught in net for ringing in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Wild Wonders of Europe / Préau / Man ringing Long tailed tit (Aegithalos caudatus) caught in net for ringing in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Wild Wonders of Europe / Préau / Man ringing Long tailed tit (Aegithalos caudatus) caught in net for ringing in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Wild Wonders of Europe / Préau / Man ringing Long tailed tit (Aegithalos caudatus) caught in net for ringing in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Wild Wonders of Europe / Préau / Man releasing Long tailed tit (Aegithalos caudatus) after ringing, caught in net for ringing in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Wild Wonders of Europe / Préau / Man releasing Long tailed tit (Aegithalos caudatus) after ringing, caught in net for ringing in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Wild Wonders of Europe / Préau / Man removing Long tailed tit (Aegithalos caudatus) from mist net for ringing, in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Wild Wonders of Europe / Préau / Long tailed tit (Aegihalos caudatus) caught in mist net for ringing, in allotment, Grande-Synthe, Dunkirk, France, September 2010, model released

Todd Mintz / Long tailed Duck / Oldsquaw (Clangula hyemalis) on water, Canada, July

Todd Mintz / Long tailed Duck / Oldsquaw (Clangula hyemalis) on water, Canada, June

Roland Seitre / Long-tailed Glossy-Starling (Lamprotornis caudatus). Fathala Reserve, Toubacouta, Senegal.

Roland Seitre / Long-tailed Mockingbird (Mimus longicaudatus) portrait. Chaparri reserve, Chiclayo, Lambayeque, Peru, July.

Anup Shah / Long-tailed / crab-eating macaque (Macaca fascicularis) investigating camera lens of photographer, Fiona Rogers, Bako National Park, Sarawak, Borneo, Malaysia, model released, April 2010

Erlend Haarberg / Female Long-tailed duck (Clangula hyemalis) on water with male sleeping behind, Myvatn, Iceland, June

Erlend Haarberg / Long-tailed duck (Clangula hyemalis) landing on water, Myvatn, Iceland, June

Erlend Haarberg / Male Long-tailed duck (Clangula hyemalis) in flight, low over water, Myvatn, Iceland, June

Erlend Haarberg / Long-tailed duck (Clangula hyemalis) landing on water, Myvatn, Iceland, June

Erlend Haarberg / Male Long-tailed duck (Clangula hyemalis) sitting on nest, another behind flapping wings, Iceland, May

Markus Varesvuo / Long-tailed skua (Stercorarius longicaudus) Utsjoki, Finland, July

Markus Varesvuo / Two male Long-tailed ducks (Clangula hyemalis) in flight, Porvoo, Finland, May

Markus Varesvuo / Long-tailed ducks (Clangula hyemalis) migrating, Porvoo, Finland, May

Markus Varesvuo / Long-tailed duck (Clangula hyemalis) flock migrating at sunset, Porvoo, Finland, May

Vladimir Medvedev / Amur long-tailed goral (Naemorhedus caudatus raddeanus) on rocky coast, a rare ungulate in the Amur-Heilong basin, captive animal, Lazovskiy zapovednik, Far East Russia, vulnerable species