Roland Seitre / Conservation officer demonstrates Panamanian golden frog / Golden arrow poison frog (Atelopus zeteki) female with eggs, El Valle Amphibian Conservation Center, Panama, Central America, March 2008, Cri...

Roland Seitre / Conservation officer, Heidi Griffith, holds Panamanian golden frog / Golden arrow poison frog (Atelopus zeteki) at frog breeding station, El Valle Amphibian Conservation Center, Panama, Central Americ...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) in snow. Captive. Parc de la Haute Touche, Tours, France, 2003.

Roland Seitre / Scimitar Oryx (Oryx dammah) grazing at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) with foal at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th centur...

Roland Seitre / Young Scimitar Oryx (Oryx dammah) resting at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th ce...

Roland Seitre / Scimitar Oryx (Oryx dammah) with their handlers at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 2...

Roland Seitre / Scimitar Oryx (Oryx dammah) and their handler at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20t...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Scimitar Oryx (Oryx dammah) at the breeding program at Reserve du Ferlo Nord, near Ranero in Senegal. Captive. Previously common, over-hunting and habitat destruction through the 20th century has left...

Roland Seitre / Black-footed Ferret (Mustela nigripes). The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a successful breeding progr...

Roland Seitre / Black-footed Ferret (Mustela nigripes). The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a successful breeding progr...

Roland Seitre / Black-footed Ferret (Mustela nigripes) seen in its burrow. The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a succes...

Roland Seitre / Black-footed Ferret (Mustela nigripes) seen in its burrow. The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a succes...

Roland Seitre / Black-footed Ferret (Mustela nigripes) seen in its burrow. The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a succes...

Roland Seitre / Black-footed Ferret (Mustela nigripes) running. The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a successful breedi...

Roland Seitre / Black-footed Ferret (Mustela nigripes). The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a successful breeding progr...

Roland Seitre / Black-footed Ferret (Mustela nigripes) by its burrow. The species is endangered on account of prey depletion and vulnerability to foreign infection. Declared extinct in the wild in 1987, a successful...

Roland Seitre / Detail of Mammoth Ivory (free trade) showing structural lines, note the sharp angle crossing of the lines like a prehistoric arrow end. National Fish and Wildlife Forensics Laboratory, Ashland, Oregon...

Andy Sands / Bug (Eremocoris fenestratus), a species thought extinct in the UK but recently rediscovered. London, England, UK, August.

Nick Upton / Skull of Brown bear (Usrus arctos) next to huge extinct Cave bear (Ursus ingressus) skull on display in Krizna cave where remains of over 100 Cave bears have been found, Slovenia

Nick Upton / Skull of huge extinct Cave bear (Ursus ingressus) dwarfing skull of Brown bear (Usrus arctos) on display in Krizna cave where remaians of over 100 Cave bears have been found, near Cerknica, Slovenia

Ross Hoddinott / 2020VISION / Large blue butterfly (Phengaris arion) feeding on Wild thyme (Thymus praecox) flower, Collard Hill, Somerset, England, UK, June 2011. Did you know? Large blue butterflies became extinct in the UK in 1...

Mike Read / Extinct volcanic calderas of Pico da Esperance. Sao Jorge, Azores, September 2004.

Mike Read / Extinct volcanic calderas of Pico da Esperance. Sao Jorge, Azores, September 2004.

Andy Rouse / Skull of Polar Bear (Ursus maritimus) in rugged polar landscape. Karl XII Island, Svalbard, Norway, June 2010.

Ernie Janes / Pere David's Deer (Elaphurus davidianus) stag wallowing in mud, captive, extinct in the wild

Ernie Janes / Pere David's Deer (Elaphurus davidianus) shedding velvet from antlers and covered in mud, captive, extinct in the wild

Chris Gomersall / 2020VISION / Flock of Common cranes (Grus grus) feeding in potato field with Rooks in trees in background, near Hickling Broad, Norfolk, UK, March 2011. Photographer quote: 'Common cranes, extinct as a breeding bi...

Daniel Heuclin / Pere David's Deer (Elaphurus davidianus) cooling down in water, Captive, extinct in the wild.

Ernie Janes / Botanist extracting seed from Field Cow Wheat (Melampyrum sp) which is nearly extinct in UK

Thomas Rabeil / Dama Gazelle (Nanger dama) juvenile running across rocky terrain. This species is critically endangered. Termit Massif, Niger.

Brent Stephenson / The crater lake of the extinct volcano Rano Kau on the southwestern part of Easter Island. South Pacific, October 2009.

Peter Cairns / 2020VISION / Capercaillie (Tetrao urogallus) male displaying in pine forest in snow, Cairngorms NP, Highlands, Scotland, UK, January. Did you know? The UK populations of capercaillie were reintroduced in the 19th...

Daniel Heuclin / Theropod dinosaur tracks preserved in Lower Jurassic (200 million years old) rock. Near Tuba City, Arizona, USA

Julian Hume / Illustration of extinct parrots. Clockwise from top right: Cuban red macaw (Ara tricolor) - extinct 1864,Cuba,West Indies; Jamaican red macaw (Ara gossei) - extinct 1765,Jamaica,West Indies; Rodrigues...

Stephen Dalton / Seychelles Giant Tortoise (Dipsochelys dussumieri) walking fast, Seychelles, captive, extinct in the wild

Pete Oxford / Pinzon Island Tortoise (Chelonoidis nigra ephippium) hatchling emerging from egg, Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Pete Oxford / Pinzon Island Tortoise (Chelonoidis nigra ephippium) hatchling emerging from egg, Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Pete Oxford / Pinzon Island Tortoise (Chelonoidis nigra ephippium) hatchling emerging from egg, Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Pete Oxford / Pinzon Island Tortoise (Chelonoidis nigra ephippium) hatchling emerging from egg, Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) getting used to the transport crate in Dvur Kralove Zoo, Czech Republic, the day before departure - Dec 2009. Extinct in the wild and only eight...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) feeding in enclosure at Dvur Kralove Zoo, Czech Republic, the day before departure - Dec 2009. Extinct in the wild and only eight left in captiv...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) behind bars in Dvur Kralove Zoo, Czech Republic, the day before departure - Dec 2009. Extinct in the wild and only eight left in captivity, cri...

Michael D. Kern / Zoo Atlanta / Panamanian golden frog (Atelopus zeteki) captive, extinct in the wild

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

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

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

Mark Carwardine / Game ranger and vet checking on a Northern white rhinoceros (Ceratotherium simum cottoni) after initial release into the wild, Ol Pejeta Conservancy, Kenya, June 2010, Extinct in the wild, only eight...

Mark Carwardine / Game ranger checking on a Northern white rhinoceros (Ceratotherium simum cottoni) after initial release into the wild, Ol Pejeta Conservancy, Kenya, June 2010, Extinct in the wild, only eight left in...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) with horn removed, rehabilitated back in the wild at Ol Pejeta Conservancy, Kenya, June 2010, Extinct in the wild, only eight left in captivity,...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) with horn removed, rehabilitated back in the wild at Ol Pejeta Conservancy, Kenya, June 2010, Extinct in the wild, only eight left in captivity,...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) rehabilitated back in the wild at Ol Pejeta Conservancy, Kenya, June 2010, Extinct in the wild, only eight left in captivity, critically endange...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) inside cramped brick building at Dvur Kralove Zoo, Czech Republic, December 2009, Extinct in the wild, only eight left in captivity, critically...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) in transport crate being offloaded Boeing 747 aeroplane at Nairobi Airport, December 2009, Extinct in the wild, only eight left in captivity, c...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) in transport crate being offloaded Boeing 747 aeroplane at Nairobi Airport, December 2009, Extinct in the wild, only eight left in captivity, cr...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) in transport crate in cargo hold of Boeing 747 aeroplane between Prague and Nairobi, December 2009, Extinct in the wild, only eight left in cap...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) in transport crate in cargo hold of Boeing 747 aeroplane between Prague and Nairobi, December 2009, Extinct in the wild, only eight left in cap...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) crates in the cargo hold of a Boeing 747 aeroplane between Prague and Nairobi, December 2009, Extinct in the wild, only eight left in captivity...

Mark Carwardine / Zoo keeper saying farewell to Northern white rhinoceros (Ceratotherium simum cottoni) in transport crate at Dvur Kralove Zoo, Czech Republic, ready for departure to Kenya, December 2009, Extinct in th...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) in transport crate at Dvur Kralove Zoo, Czech Republic, ready to drive to Prague airport for flight to Nairobi, December 2009, Extinct in the wi...

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

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

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

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

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) getting used to the transport crate in Dvur Kralove Zoo, Czech Republic, December 2009, Extinct in the wild, only eight left in captivity, criti...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) getting used to the transport crate in Dvur Kralove Zoo, Czech Republic, December 2009, Extinct in the wild, only eight left in captivity, criti...

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

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

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

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

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) initial release into small enclosure at Ol Pejeta Conservancy, Kenya, December 2009, Extinct in the wild, only eight left in captivity, critical...

Mark Carwardine / Northern white rhinoceroses (Ceratotherium simum cottoni) arriving in crates at Ol Pejeta Conservancy, Kenya, December 2009, Extinct in the wild, only eight left in captivity, critically endangered, P...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) in crate being offloaded in Kenya after flight from Prague to Nairobi, December 2009. Subspecies extinct in the wild, only eight left in captivi...

Mark Carwardine / Northern white rhinoceros (Ceratotherium simum cottoni) in crate being offloaded in Kenya after flight from Prague to Nairobi, December 2009. Subspecies extinct in the wild, only eight left in captivi...

Stephen Dalton / Red tailed black shark (Labeo / Epalzeorhynchos bicolor) pair in aquarium, extinct in wild

Tui De Roy / Pinta Island Galapagos Tortoise (Chelonoidis nigra abingdoni) named Lonesome George is the last individual of his subspecies, Charles Darwin Research Center, Pinta Island, Galapagos Islands, Ecuador

Tui De Roy / Pinta Island Galapagos Tortoise (Chelonoidis nigra abingdoni) named Lonesome George is the last individual of his subspecies, browsing on cactus, Charles Darwin Research Station, Pinta Island, Galapag...

Tui De Roy / Pinta Island Galapagos Tortoise (Chelonoidis nigra abingdoni) named Lonesome George is the last individual of his subspecies, Charles Darwin Research Center, Pinta Island, Galapagos Islands, Ecuador

Tui De Roy / Pinta Island Galapagos Tortoise (Chelonoidis nigra abingdoni) named Lonesome George is the last individual of his subspecies, with attendant, Charles Darwin Research Center, Pinta Island, Galapagos Is...

Tui De Roy / Pinta Island Galapagos Tortoise (Chelonoidis nigra abingdoni) named Lonesome George is the last individual of his subspecies, Charles Darwin Research Station, Pinta Island, Galapagos Islands, Ecuador

Tui De Roy / Pinta Island Galapagos Tortoise (Chelonoidis nigra abingdoni) named Lonesome George is the last individual of his subspecies, Charles Darwin Research Station, Pinta Island, Galapagos Islands, Ecuador

Miles Barton / Habitat of Panamanian Golden Frog now extinct in the wild. Frog needs clear, fast flowing mountain streams for tadpoles to grow up in. Development and road building destroys or silts up the streams, C...

Miles Barton / Filming Panamanian Golden Frog (Atelopus ziteki)reacting to the model of a waving frog. Experiment carried out to reveal the purpose of the frog's waving behaviour – to attract mates and deter rivals....

Miles Barton / Panamanian Golden Frog (Atelopus ziteki) reacting to the model of a waving frog. Experiment carried out to reveal the purpose of the frog's waving behaviour – to attract mates and deter rivals. Featur...

SINCLAIR STAMMERS / Fossils of Goniatites (extinct shelled cephalopods) These specimens are Devonian and preserved in haematite, they were found weathered out on desert surface in southern Morocco.

MORLEY READ / Quito Rocket Frog or Waterfall Rocket Frog (Colostethus jacobuspetersi), Quito, Ecuador. Critically endangered, possibly extinct. 1997.

MORLEY READ / Close-up of Quito Rocket Frog or Waterfall Rocket Frog (Colostethus jacobuspetersi), Quito, Ecuador. Critically endangered, possibly extinct. 1997.