Tui De Roy / Floreana giant tortoise hybrid descendants (Chelonoidis elephantopus) feeding on flower. These are descendants of the extinct Floreana giant tortoise, but are hybridised with other species. Fausto Lle...
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Lucas Bustamante / Rio pescado harlequin toad (Atelopus balios) pair on branch, female on the left, Azuay, Ecuador, Critically endangered species, possibly extinct.
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ZSSD / Hawaiian Crow (Corvus hawaiiensis) using stick tool to reach food, native to Hawaii
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ZSSD / Hawaiian Crow (Corvus hawaiiensis) using stick tool to reach food, native to Hawaii
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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.
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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...
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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...
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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...
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Miles Barton / Panamanian Golden Frog (Atelopus ziteki) Panama, Featured in BBC NHU series 'Life in Cold Blood'. Species now extinct in the wild
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Miles Barton / Panamanian golden frog (Atelopus ziteki) reacting to the image of a frog on a video monitor. Experiment carried out to reveal the purpose of the frog's waving behaviour - to attract mates and deter ri...
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Yva Momatiuk & John Eastcott / California Condor (Gymnogyps californianus) immature bird flying with transmitter attached, critically endangered extinct in wild and recently re-introduced, 9-10 foot wingspan, Marble Canyon, Arizona
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Michael & Patricia Fogden / Golden Toad (Bufo periglenes) male, breeding aggregation, extinct, Monteverde Cloud Forest Reserve, Costa Rica