John Shaw / Abandoned house in middle of a wheat field. Palouse farming area, south eastern Washington, USA, August.

Kirkendall-Spring / Sunset over West and Middle Anacapa Islands, view from Inspiration Point on East Anacapa Island, Channel Islands National Park, California, USA, April 2011.

Rolf Nussbaumer / Turkey vulture sunning and calling in tree {Cathartes aura} Texas, USA.

Rolf Nussbaumer / Male Wild Turkey head and neck portrait {Meleagris gallopavo} Texas, USA.

Rolf Nussbaumer / Male Wild Turkeys displaying {Meleagris gallopavo} Texas, USA

Rolf Nussbaumer / Rear view of Male Wild Turkey tail feathers during display {Meleagris gallopavo} Texas, USA

Rolf Nussbaumer / Female Wild Turkey head portrait {Meleagris gallopavo} Texas, USA.

Claus Meyer / Anavilhanas archipelago in the middle of the Rio Negro River which is 24 kilometers wide at this point, Amazon ecosystem, Brazil

Pascal Kobeh / The Zaci cenote with people swimming, in the middle of Valladolid, Yucatan peninsula, Mexico.

Jeff Foott / Western Blue Flag Iris (Iris missouriensis) flowering in meadow, Middle Cathedral Rock, Lower Cathedral Rock, Yosemite National Park, California

Jeff Foott / Middle Cathedral Rock, Yosemite National Park, California

Jeff Foott / Rock formations, Lower Cathedral Rock, Middle Cathedral Rock, Higher Cathedral Rock, Yosemite National Park, California

Jeff Foott / Rock formations, Lower Cathedral Rock, Middle Cathedral Rock, Higher Cathedral Rock, Yosemite National Park, California

Charlie Summers / Pink / Humpback Salmon (Oncorhynchus gorbuscha) male, dying with parts of flesh rotting, trying to make it upstream to its spawning grounds, Ketchikan Creek in the middle of Ketchikan, Alaska.

Charlie Summers / Greenback cut throat trout (Oncorhynchus clarkii stomias) in their spawning stream in the Neota Wilderness area of Colorado, USA, July. Significant in this is are the Visible Implant Elastomer Tags (...

Phil Savoie / Vermiculated screech owl (Megascops guatemalae) La Selva Field Station, Costa Rica.

Adrian Davies / Plaster cast of Fossil (Aysheaia sp) from Middle Cambrian from Burgess Shale, British Columbia, Canada

Charlie Summers / Greenback cutthroat trout (Oncorhynchus clarkii stomias) male hovering over a redd or nest that the female, in the middle had just dug and hollowed out. Neota Wilderness, in North Park, Colorado, U...

Ingo Arndt / Banded orange heliconian butterfly (Dryadula phaetusa) underside of wings showing stripes, South and Middle America (captive)

Ingo Arndt / Tropical moth on leaf reveals eyespots to avoid predation, Costa Rica. Sequence 2/2

Ingo Arndt / Tropical moth on leaf reveals eyespots to avoid predation, Costa Rica. Sequence 1/2

Nick Hawkins / A remnant of natural Acadian forest stands in the middle of a monocuture plantation of spruce trees, Nova Scotia, Canada, September.

Nick Garbutt / Leaf mimic bush cricket or 'katydid' (unknown species, family Tettigoniidae) in the middle of moulting its skin. Moulting from one sub-adult stage (instar) to another is known as ecdysis. Mont...

Inaki Relanzon / Truck slowly driving past a Santa Cruz Giant tortoise (Geochelone nigrita) on the middle of the main road, Galapagos Island, Ecuador, December 2016.

Jack Dykinga / Patterns in the bacterial mats in afternoon light. Grand Prismatic spring, Middle Geyser Basin,Yellowstone National Park, Wyoming, USA.

Jack Dykinga / Patterns in the bacterial mats in afternoon light. Grand Prismatic spring, Middle Geyser Basin,Yellowstone National Park, Wyoming, USA.

Franco Banfi / Scuba divers at Roca Partida, a little rock out in the middle of nowhere. Revillagigedo Islands, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico. Digital c...

Merryn Thomas / View towards Valle Frances, at middle stage of W Trek. Torres del Paine National Park, Patagonia, Chile. January 2014.

Merryn Thomas / Hiker walking towards Valle Frances, on middle stage of W Trek. Torres del Paine National Park, Patagonia, Chile. January 2014.

Pete Oxford / Aerial view of Logging camp in the middle of rainforest, Rupununi, Guyana, South America

Alex Hyde / Strangler fig (Ficus zarazalensis) aerial roots. In this instance the original host tree that the Strangler fig was climbing has been killed and rotted has away, leaving a hollow space in the middle....

Alex Hyde / Looking through the aerial roots of a Strangler fig (Ficus zarazalensis) the original host tree that the Fig was climbing has been killed and has rotted away, leaving a hollow space in the middle, spe...

Kirkendall-Spring / Cathedral Peak from Middle Lake, Popo Agie Wilderness, Wind River Range, Shoshone National Forest, Wyoming, USA. September 2015.

Kirkendall-Spring / Cathedral Peak from Middle Lake, Popo Agie Wilderness, Wind River Range, Shoshone National Forest, Wyoming, USA. September 2015.

Kirkendall-Spring / Cathedral Peak from Middle Lake, Popo Agie Wilderness, Wind River Range, Shoshone National Forest, Wyoming, USA. September 2015. Model released.

Kirkendall-Spring / Cathedral Peak from Middle Lake, Popo Agie Wilderness, Wind River Range, Shoshone National Forest, Wyoming, USA. September 2015. Model released.

Jeff Foott / Middle North Falls, Silver Falls State Park, Oregon

Gerrit Vyn / American flamingo (Phoenicopterus ruber) standing in the middle of the creche in a large nesting colony. Rio Lagartos Biosphere Reserve, Mexico. July.

Kirkendall-Spring / Lamar River in snow, Lamar Valley of Yellowstone National Park, Wyoming, USA. February 2015.

Kirkendall-Spring / View north at sunrise from the summit of South Sister, Three Sisters Wilderness, Deschutes National Forest. The Large mountains, distance are Middle Sister, North Sister, Mount Jefferson, Mount Hood a...

Kirkendall-Spring / Hiker on the crater rim of Broken Top, and view towards Middle and North Sister. Three Sisters Wilderness, Deschutes National Forest. Oregon, USA, July 2014. Model released.

Michael Pitts / Hawaiian Green turtle (Chelonia mydas) swimming above a coral reef. Honolulu, Hawaii, May.

Cheryl-Samantha Owen / A miniature Douglad fir (Pseudotsuga menziesii) growing out of a stump in the middle of Fairy Lake. Near Port Renfrew, Vancouver Island, British Columbia, Canada, July.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kirkendall-Spring / Man fly fishing on the Middle Fork of the Snoqualme River near North Bend, Washington, USA, July 2013. Model released.

Kim Taylor / Northern Jacana (Jacana spinosa) displaying, showing wing spurs, Costa Rica

Kim Taylor / Northern Jacana (Jacana spinosa) displaying, showing wing spurs, Costa Rica

Kirkendall-Spring / Middle North Falls in Silver Falls State Park, Oregon, USA, May 2011

Hermann Brehm / Monk Parakeet (Myiopsitta monachus) perched on branch in the middle of river, Pantanal, Brazil

SINCLAIR STAMMERS / Marrella splendens (Walcott) left and Burgessia bella (Walcott) right from the Burgess shale, British Columbia. At 505 million years old -Middle Cambrian- Burgess Shale fossils are preserved as a fil...

Paul D Stewart / A collector's case of British butterflies. There are some 59 breeding butterflies in the UK and four former breeders, as well as rare migrants like the monarch all the way from America, represented he...

Martin Dohrn / Maricopa harvester ant (Pogonomyrmex maricopa) (middle) fighting a different species of ant (Aphaenogaster sp), over territory Arizona, USA

Martin Dohrn / Maricopa harvester ant (Pogonomyrmex maricopa) (middle) fighting a different species of ant (Aphaenogaster sp), over territory Arizona, USA

Konrad Wothe / American dipper (Cinclus mexicanus) feeding young in middle of stream, Costa Rica

Kirkendall-Spring / East Anacapa Island's Inspiration Point with a view of Middle and West Anacapa Islands and Santa Cruz Island with Tickseed (Coreopsis sp) blooming in foreground, Channel Island National Park, Californ...

Kirkendall-Spring / East, Middle and West Anacapa Islands and Santa Cruz Island from Inspiration Point on East Anacapa Island, Channel Islands National Park, California, USA, April 2011.

Kirkendall-Spring / Middle Anacapa Island and West Anancapa Island with Santa Cruz Island in the distance, view from Inspiration Point on the west end of East Anacapa Island, Channel Islands National Park, California, US...

Kirkendall-Spring / Sunset over Middle and West Anacapa Islands and Santa Cruz Island, view from Inspiration Point on East Anacapa Island, Channel Islands National Park, California, USA, April 2011.

Billy Black / Family sailing Tartan 4300 "Tsunami" on the Severn River, Maryland. Model and property released, October 2007.

Billy Black / Man setting the sails on the foredeck of a 53ft Stephens yacht, Florida. Model and property released.

Billy Black / Man on the foredeck of a 53ft Stephens yacht, Florida. Model and property released.

Billy Black / Man aboard a Stephens 53ft yacht cruising in Florida Bay, Florida, USA. Model and property released.

Billy Black / Stephens 53ft yacht cruising in Florida Bay, Florida, USA. Model and property released.

Billy Black / Man helming a Hunter 49 yacht off St. Augustine, Florida, USA. Model and property released.

Billy Black / Friends eating breakfast aboard Stephens 53 in Florida Bay, Florida, USA. Model and property released.

Billy Black / Friends eating breakfast aboard Stephens 53 in Florida Bay, Florida, USA. Model and property released.

Billy Black / Woman aboard a yacht sailing from San Juanico to Puerto Escondito, Baja California, Mexico. Model Released, March 2005.

Billy Black / Couple drinking champagne on foredeck of 80ft. Oyster "Darling", Narragansett Bay, Newport, Rhode Island, September 2005. Model and property released.

Piper Mackay / A young Wounaan indian man at his computer in the middle of the Soberania NP rainforest, Panama, November 2008, Model released

SINCLAIR STAMMERS / Fossils of Burrowing trilobites (Homalonotus / Trimerus linares) (Salter) from the Middle Devonian period, Patacamaya, Bolivia. The cylindrical body shape plus shovel nose headshield possibly indicate...

Scott Leslie / Limestone in middle ordovician fossil site, Table Point Ecological Reserve, Canada

Scott Leslie / Middle ordovician fossil site, Table Point Ecological Reserve, Canada

Carol Walker / Mustangs / wild horses, three grey stallions running, young one in the middle with submissive mouth, Adobe Town Herd Management Area, Southwestern Wyoming, USA

Matthew Maran / Middle Waterton Lake, Waterton Lakes National Park, Alberta, Canada

John Cancalosi / Male Wild turkey {Meleagris gallopavo} New York, USA

John Cancalosi / Male Wild turkey {Meleagris gallopavo} New York, USA

John Cancalosi / Male Wild turkey {Meleagris gallopavo} New York, USA

Jack Dykinga / Boulder in middle of Redrock Canyon with water flowing around it, Waterton Lakes National Park, Canada

Rolf Nussbaumer / Male Wild Turkey (Meleagris gallopavo) calling (gobbling), Welder Wildlife Refuge, Sinton, Texas, USA. April 2005

Rolf Nussbaumer / Male wild turkey (Meleagris gallopavo) displaying, Welder Wildlife Refuge, Sinton, Texas, USA. April 2005

Rolf Nussbaumer / Portrait of head of male Wild Turkey (Meleagris gallopavo) eating, Welder Wildlife Refuge, Sinton, Texas, USA. April 2005

Rolf Nussbaumer / Female Wild Turkey (Meleagris gallopavo) Lake Corpus Christi, Texas, USA. April 2003

Rolf Nussbaumer / Turkey Vulture (Cathartes aura) preening, Starr County, Rio Grande Valley, Texas, USA. May 2002

George McCarthy / Male Wild Turkey (Meleagris gallopavo) of the western race, displaying, Arkansas Wildlife Refuge, Texas, USA

George McCarthy / Details of male Wild Turkey (Meleagris gallopavo) plumage, Arkansas Wildlife Refuge, Texas, USA

George McCarthy / Portrait of male Wild Turkey (Meleagris gallopavo) of the western race, Arkansas Wildlife Refuge, Texas, USA

George McCarthy / Male Wild Turkey (Meleagris gallopavo) of the eastern race at water to drink, Texas, USA

Christian Ziegler / Six species of butterfly and two species of moth, all members of the (Heliconius ismenius) batesian mimicry ring, the (Heliconius ismenius clarescens) in the middle is considered the original model of...

Christian Ziegler / Small creek running through tropical rainforest in the middle of the island, Barro Colorado Island, Panama

John Cancalosi / Turkey Vulture (Cathartes aura) stretching wings, USA

John Cancalosi / Turkey Vulture (Cathartes aura) on Collared peccary / Javelina (Tayassu tajacu) carcass, USA

Pete Oxford / Young Two striped forest pit viper (Bothriopis bilineatus) in middle of skin moult, Ecuador, South America

Tom Vezo / Turkey vulture {Cathartes aura} alighting off branch, Rio Grande Valley, Texas, USA