Paul D Stewart / Photographic reconstruction of Archaeopteryx by Paul D. Stewart. The fossils of this species was from 150 million years ago, and is thought of as a stage between feathered dinosaurs and modern birds.

Paul D Stewart / Male Large Blue Butterfly (Maculinea eutryphon / arion) collected in 1865. It is here surrounded by other extant UK blue butterfly species. The large Blue was first recorded as a British species in 17...

Kristel Richard / A herd of Retuerta mares trotting, Guadiamar scientific reserve, Donana National Park, Andalusia, Spain. This breed of horse was close to extinction in the 1990s with only 5 individuals left, but now...

Roland Seitre / Mauricio dos Santos with a captive bred Spix's macaw (Cyanopsitta spixii), critically endangered species, site of the first attempts to breed Spix's macaw after their extinction in the wild, Recife, P...

Andy Rouse / 2020VISION / European river otter (Lutra lutra) swimming, Dorset, UK, May. Did you know? Following efforts to save them from extinction, otters have now returned to every county in England – proof that conservatio...

Ole Jorgen Liodden / Polar Bear (Ursus maritimus) sitting on floe in vast thawing sea-ice landscape. Spitsbergen, Svalbard, August 2011. Second place, Mammals Category, GDT 2012 competion. Winner in ANIMALS IN THEIR ENVIR...

Nick Upton / 2020VISION / 'Minnie', 'Squidgy' and 'Vince', three of the flock of Common / Eurasian cranes (Grus grus) a year after release by the Great Crane Project onto the Somerset Levels and Moors, with adult plumage devel...

Andy Rouse / Harvested potatoes in Virunga Volcanoes National Park with agricultural land behind and forest beyond where the mountain gorillas live, Rwanda, April 2010. Encroachment of the human population on habi...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) with horn removed, after initial release into the wild, Ol Pejeta Conservancy, Kenya, June 2010, Extinct in the wild, only eight left in captivi...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) close-up of eye, Dvur Kralove Zoo, Czech Republic, December 2009, Extinct in the wild, only eight left in captivity, critically endangered, Part...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) close up of eye, in enclosure at Dvur Kralove Zoo, Czech Republic, the day before departure, December 2009, Extinct in the wild, only eight left...

Mark Bowler,Mark Bowler / Dodo {Raphus cucullatus} reconstruction. Extinct.