Inaki Relanzon / Madagascar Pochard (Aythya innotata) on water. One of the most endangered ducks in the world, rediscovered in 2008. Bemanevika protected area, north Madagascar, Africa.

Mark Carwardine / New Caledonia crested / Guichenot's giant / Eyelash gecko (Rhacodactylus ciliatus) captive, from South Province, New Caledonia. Thought to be extinct but rediscovered in 1994

Mark Carwardine / New Caledonia crested / Guichenot's giant / Eyelash gecko (Rhacodactylus ciliatus) using tongue to wipe its eye clean, captive, from South Province, New Caledonia. Thought to be extinct but rediscover...

Mark Carwardine / New Caledonia crested / Guichenot's giant / Eyelash gecko (Rhacodactylus ciliatus) captive, from South Province, New Caledonia. Thought to be extinct but rediscovered in 1994

Sandesh Kadur / The large Malabar gliding frog (Rhacophorus malabaricus) next to smaller winged Gliding frog (Rhacophorus lateralis) Southern Coorg, Western Ghats, Southern India. The winged gliding frog is highly...

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

Chien Lee / Bornean Rainbow Toad (Ansonia latidisca) camouflaged on tree trunk, species was rediscovered in 2011, Sarawak, Borneo, Malaysia

Chien Lee / Bornean Rainbow Toad (Ansonia latidisca), unseen since 1924 it was rediscovered in 2011, Sarawak, Borneo, Malaysia

Chien Lee / Bornean Rainbow Toad (Ansonia latidisca), unseen since 1924 it was rediscovered in 2011, Sarawak, Borneo, Malaysia

Inaki Relanzon / Two Madagascar Pochard (Aythya innotata) on water. One of the most endangered ducks in the world, rediscovered in 2008. Bemanevika protected area, north Madagascar, Africa.

Inaki Relanzon / Madagascar Pochard (Aythya innotata) on water. One of the most endangered ducks in the world, rediscovered in 2008. Bemanevika protected area, north Madagascar, Africa.

Albert Lleal / Eyelash Gecko (Rhacodactylus ciliatus) with elongated scales over eyes was thought extinct but rediscovered in 1994, New Caledonia

Paul D Stewart / The frontis to Gideon Mantell's 1851 book, 'Petrifactions and their Teachings - a handbook to the gallery of organic remains at the British Museum'. The frontis engraving is of Notornis Mantelli - the...

Chien Lee / Bornean Rainbow Toad (Ansonia latidisca), unseen since 1924 it was rediscovered in 2011, Sarawak, Borneo, Malaysia

Chien Lee / Bornean Rainbow Toad (Ansonia latidisca), unseen since 1924 it was rediscovered in 2011, Sarawak, Borneo, Malaysia