SINCLAIR STAMMERS / Well preserved fossil of trilobite, Dudley locust (Calymene blumenbachii) rolled in defensive position, from Silurian period, found in the Wenlock Limestone of Wrens Nest Hill, Dudley.

Jabruson / African Forest elephant (Loxodonta africana cyclotis) adult bull chasing others and vying for position at mineral drinking hole. These elephants visit the forest clearings to obtain valuable minerals...

Charlie Summers / Cheetah cubs (Acinonyx jubatus) position themselves for nursing on mother, Ndutu area of the Ngorongoro Conservation Area, Tanzania

MYN / Matt Cole / A Black Millipede (Tachypodoiulus niger) in a coiled, defensive position. Suburban garden, Ashby de la Zouch, Leicestershire, UK, March. meetyourneighbours.net project

MYN / Seth Patterson / Rough green snake (Opheodrys aestivus) moving from coiled position, Sabal Palm Sanctuary, Rio Grande, Texas, USA, April. meetyourneighbours.net project

Andy Rouse / 2020VISION / Osprey (Pandion haliaetus) male getting into position to mate. Dyfi Estuary, Wales, UK, April. Taken with a Schedule 1 license from Countryside Council of Wales.

Andy Rouse / 2020VISION / Osprey (Pandion haliaetus) male getting into position to mate. Dyfi Estuary, Wales, UK, April. Taken with a Schedule 1 license from Countryside Council of Wales.

Andy Rouse / Osprey (Pandion haliaetus) male getting into position to mate, Dyfi Estuary, Wales, UK taken with a Schedule 1 licence from CCW (Countryside Council for Wales)

Stephen Dalton / Ray Spider (Theridiosoma gemmosum) on its web suspended in typical position a few inches above the water's surface. UK, April.

Shibai Xiao / Tokay gecko (Gekko gecko) clinging to the truck of tree in a upside down position, Guangxi Province, China.

Roland Seitre / Rangers using a GPS to note their position. Ishaqbini Reserve, Kenya, 2009.

Rick Tomlinson / Crew member Damian Foxhall holding child in lifejacket, after finishing leg one of the 10th Volvo Ocean Race in fourth position in "Green Dragon". Cape Town, November 2008. For EDITORIAL USE only.

Chris Gomersall / 2020VISION / Sonar displays on the bridge of the pelagic trawler 'Charisma' showing position of net and shoals of Atlantic mackerel (Scomber scombrus), Shetland Isles, Scotland, UK, October 2011

Rick Tomlinson / The crew of "Green Dragon" celebrating after finishing leg one of the 10th Volvo Ocean Race in fourth position. Cape Town, November 2008. For EDITORIAL USE only.

Laurie Campbell / Hedgehog (Erinaceus europaeus) curled up in defensive position in leaf litter, Berwickshire, Scotland, October

Philip Stephen / The dive support vessel C.S.O Wellservicer moves into position alongside the Statfjord Bravo production platform to start subsea operations, North Sea, September 2007

Petra Wegner / Ogar Polski / Polish Hound, short haired bitch, in play bow position

Roger Powell / Northern gannet (Morus bassanus) flying overhead in cruciform position having just taken-off, Great Saltee island, Wexford, Republic of Ireland, June

Charlie Summers / Bull Snake (Pituophis catenifer sayi) coiled in defensive position ready to strike. Colorado, USA, May.

Charlie Summers / Cocos Purple Land Crab (Cardisoma carnifex) in defensive position. Cocos-Keeling Island, Indian Ocean, Australia, May.

Christian Ziegler / Warty Hammer Orchid (Drakaea livida) flower has hinge mechanism to manipulate its pollinator into just the right position to receive its pollen, south of Perth, western Australia

Bryan and Cherry Alexander / Sculptural shapes of an iceberg, made while the ice was submerged, now visible after a shift of position. East Greenland, September 2005.

Bryan and Cherry Alexander / Sculptural shapes of an iceberg, made while the ice was submerged, now visible after a shift of position. East Greenland, September 2005.

Philippe Clement / Tick extractor / remover. Closed position.

Philippe Clement / Tick extractor / remover. Open position.

Juergen Freund / Close up of the cirri of a Featherstar (Crinoidea) that holds the featherstar in position on rocky substrate. Batangas, Philippines.

Diane McAllister / Fledged Long eared owl (Asio otus) in a defense position, making itself look bigger. It is alone in the brush by the side of the road. Palomino Valley, Nevada, USA, May

Juergen Freund / Researcher Guido Westhoff catching a Spotted python (Antaresia maculosa) in a trash dump site. Dump sites and rubbish tips are favorite hiding places of reptiles. Snakes often take cover under sheets...

Juergen Freund / Researcher Guido Westhoff finding a Spotted python (Antaresia maculosa) in a trash dump site. Dump sites and rubbish tips are favorite hiding places of reptiles. Snakes often take cover under sheets o...

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) buck in alert position, North America

Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) males competing for best position to fertilize eggs of females about to lay, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

Charlie Summers / Bighorn sheep (Ovis canadensis) ram in low stretch position, Montana, USA

Pete Oxford / Palmar Treefrog (Hypsiboas pellucens) in tucked position, northwest Ecuador

Pete Oxford / Gliding Leaf Frog (Agalychnis spurrelli) in tucked position, northwest Ecuador

Pete Oxford / Rufescent Tiger-Heron (Tigrisoma lineatum) juvenile in alert position, Rewa River, Guyana

Stephen Dalton / Pantropical jumping spider (Plexippus paykulli) sequence of three images showing jumping from inverted position

James Christensen / Fishing Spider (Dolomedes sp) in ambush position on stone, Mindo, Ecuador

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) pair in sky-pointing position to keep cool in noon sun, Galapagos Islands, Ecuador

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) group in sky-pointing position to keep cool in noon sun, Galapagos Islands, Ecuador

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) in sky-pointing position to keep cool in noon sun, Galapagos Islands, Ecuador

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) in sky-pointing position to keep cool in noon sun, Galapagos Islands, Ecuador

Richard Herrmann / Southern Pacific Rattlesnake (Crotalus viridis helleri) in defensive position, Poway, California

Paul Harcourt Davies / Small skipper butterfly (Thymelicus sylvestris) in characteristic rest position with fore-wings half open and hind wings flat, Italy

Hanne & Jens Eriksen / Redshank (Tringa totanus) with leg ring, calling from position on rock, Iceland, June

Hanne & Jens Eriksen / Redshank (Tringa totanus) calling from position on rock, Iceland, June

Chadden Hunter / Chadden Hunter (scientific consultant), directs the camera into position as the team use a jib arm to swing the HD camera out over a 300 metre sheer drop in the Simien Mountains NP, Ethiopia, to film...

Chadden Hunter / Scientific consultant, Chadden Hunter, directing the camera into position as the team use a jib arm to swing the HD camera out over a 300 metre sheer drop in the Simien Mountains to film the rare Wali...

Chien Lee / Reticulated Python (Python reticulatus), leucistic individual, in defensive position, Jakarta, Indonesia

Chien Lee / Reticulated Python (Python reticulatus), leucistic individual, in defensive position, Jakarta, Indonesia

Nick Upton / Banded demoiselle damselflies (Calopteryx splendens) fanning wings as they mate in the wheel position, Wiltshire, UK, May

Nick Upton / Male Banded demoiselle damselfly (Calopteryx splendens) gripping female with tail claspers as she prepares to mate in wheel position, Wiltshire, UK, May

Mark Moffett / Driver Ant (Dorylus nigricans) trail guards in defensive position, Ghana

Wild Wonders of Europe / Lundgren / Black brittlestars (Ophiocomina nigra) on snail (Neptunea despecta) egg mass, either feeding or finding a better position to filterfeed, Trondheimsfjorden, Norway, February 2009

Alan Williams / Hedgehog (Erinaceus europaeus) rolled into defensive position in garden, Cheshire, UK, March

James Christensen / Fishing Spider (Dolomedes sp) in ambush position at the water's edge, missing two legs, Panama

Jane Burton / Brown trout {Salmo trutta} juvenile two-months-old fingerlings, holding their position in strong current, captive, from Europe, life cycle sequence 12/14

Jane Burton / Brown trout {Salmo trutta} juvenile two-months-old fingerling, holding its position in strong current, captive, from Europe, life cycle sequence 13/14

Jane Burton / Two Brown trout {Salmo trutta} juvenile two-months-old fingerlings, holding their position in strong current, captive, from Europe

Karl Ammann / Female Bonobo {Pan paniscus} in resting position, lying on back. Lola Ya Bonobo Sanctuary, Kinshasa, DR of Congo, 2007

Karl Ammann / Bonobo {Pan paniscus} lying on back in resting position with play face expression. Lola Ya Bonobo Sanctuary, Kinshasa, DR of Congo, 2007

Jouan & Rius / Caterpillar in defensive position on leaf, rainforest habitat, Costa Rica

Robert Valentic / Pilbara death adder {Acanthophis wellsi} black headed form in ambush position, Western Australia

Steve Knell / Azure damselfly (Coenagrion puella) pair in wheel position, UK

Kim Taylor / Phantom Midge (Chaoborus crystallinus) larva hangs motionless in the water with the aid of air bubbles fore and aft, maintaining its body in the horizontal position. Surrey, UK

Luciano Candisani / Southern Anteater (Tamandua tetradactyla) in defensive position, Pantanal, Brazil

Albert Lleal / Weaver Ant (Oecophylla sp) in defensive position, Baitabag, Papua New Guinea

Luciano Candisani / Yellow and Purple Land Crab (Gecarcinus lagostoma) in defensive position, Rocas Atoll, Brazil

Theo Allofs / Bengal Tiger (Panthera tigris tigris) 17 month old juvenile sitting on rock in jumping position, early morning, dry season, Bandhavgarh National Park, India

Pete Oxford / Tobacco and snuff seller in bazaar of Jodhpur, sitting in half lotus position Rajasthan, India 2006

Philippe Clement / Resting Marabou Storks {Leptoptilos crumeniferus} in sitting position, Kruger NP, South Africa

PREMAPHOTOS / Black tailed skimmer dragonfly {Orthetrum cancellatum} male in typical resting position on bare ground, UK

PREMAPHOTOS / Red veined dropwing / Darter dragonfly {Trithemis arteriosa} in the obelisk position with his tail end pointed towards the sun to reduce heat absorption, Kenya

PREMAPHOTOS / Male Darter dragonfly {Trithemis kirbyi} in obelisk position with tail pointing towards the sun to reduce heat absorption, India

Pete Oxford / Hilleniusi chameleon (Calumma hilleniusi) female in night sleeping position, South-central MADAGASCAR, endemic

Pete Oxford / Parson's chameleon (Calumma / Chamaeleo parsonii parsonii) female in night sleeping position, eastern rainforests from Ranomafana National Park south to Andohahela. MADAGASCAR, endemic

Pete Oxford / Hilleniusi chameleon (Calumma hilleniusi) male in night sleeping position, South-central MADAGASCAR, endemic

Pete Oxford / O'shaughnessy's chameleon (Calumma oshaughnessyi) night time sleeping position, Andohahela National Park, MADAGASCAR, endemic

Pete Oxford / Hilleniusi chameleon (Calumma hilleniusi) female in night sleeping position, South-central MADAGASCAR, endemic

Pete Oxford / Hilleniusi chameleon (Calumma hilleniusi) male in night resting position, South-central MADAGASCAR, endemic

PREMAPHOTOS / Close up of Zebra mosaic butterfly (Colobura dirce) with its proboscis in the coiled, resting position, in rainforest, Argentina.

Steve Knell / White tailed sea eagle {Haliaeetus albicilla} flying in vertical position, Norway, 2006

Martha Holmes / Swimming crab in defensive position {Portunus sebae} Grenadines, Caribbean

Petra Wegner / Domestic dog, Border Collie in begging position / sitting on hind legs

Pete Oxford / Panther Chameleon (Chamaeleo pardalis) sleeping position, eastern rainforest, Tamatave, Madagascar

Pete Oxford / Panther Chameleon (Chamaeleo pardalis) with tail curled in sleeping position, eastern rainforest, Tamatave, Madagascar

Willem Kolvoort / Juvenile Pike (Esox lucius) has little Perch prey (Perca fluviatilis) in its mouth but in the wrong position, it will need to turn it before it can swallow it, sand winning pit, Holland

Willem Kolvoort / Swan mussel (Anodonta cygnaea) creeps through the upper layer of the sandy bottom to look for a better position, Ijsselmeer (former Zuiderzee), Holland

Patricio Robles Gil / Man holding GPS monitor for recording position of whales, Gulf of California, Mexico

Suzi Eszterhas / California Sealion {Zalophus californianus} Mother and pup resting, San Miguel Island, California, USA. Sitting upright with neck outstretched is a common and comfortable resting position for sea lio...

Tony Phelps / Scorpion {Parabuthus granulatus} profile of South Africa's most venomous scorpion in attacking position, Oudtshoorn, Little Karoo, South Africa.

Philippe Clement / Ecuadorian / Pacific / Land hermit crab {Coenobita compressus} on land in locked position, Manuel Antonio NP, Costa Rica.

Solvin Zankl / Gentoo Penguin {Pygoscelis papua} in shallow surf, switching from the horizontal swimming position to an upright walking posture, Falkland Islands.

Solvin Zankl / Gentoo Penguins {Pygoscelis papua} in shallow surf, switching from the horizontal swimming position to an upright walk as they come onto land, Falkland Islands.

Solvin Zankl / Gentoo Penguin {Pygoscelis papua} switching from the horizontal swimming position to an upright walking posture, as fast as possible to avoid attack from Sealions lurking in the surf line. Falkland Is...

Solvin Zankl / King penguin {Aptenodytes patagonicus} in shallow surf, switching from the horizontal swimming position to an upright walk, Falkland Islands.

Hanne & Jens Eriksen / Bridled tern {Sterna anaethetus} in flight, landing position, legs down, Daymaniyats, Oman