Paul D Stewart / 1881 portrait of Charles Robert Darwin (12 February 1809 - 19 April 1882) English Naturalist and author of the Origin of Species. 1922 Hand coloured portrait aquatint of Darwin by G. Sidney Hunt after...

Paul D Stewart / Male peacock (Pavo cristatus) displaying his ocellated tail feathers.

Paul D Stewart / Illustration of 'The Entomologist'. Rare copper print with original hand colouring, drawn by George Spratt, printed by George Madely, and sold individually as part of a series through Charles Tilt's F...

Paul D Stewart / A rare British broadsheet illustration with contemporary hand colouring, drawn and engraved by John Emslie and published by James Reynolds in 1849. It shows reconstructions of extinct creatures in the...

Pete Oxford / Galapagos Giant Tortoise (Geochelone elephantophus / Chelonoidis nigra) head portrait, Charles Darwin Research Station. Puerto Ayora,Santa Cruz Island, Galapagos, endemic

Pete Oxford / Finch specimens at the Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands, L to R Top: Large Ground Finch (Geospiza magnirostris), Woodpecker Finch (Cactospiza pallidu...

Pete Oxford / Finch specimens (Emberizidae) at the Charles Darwin Research Station, Puerto Ayora, Santa Cruz Island, Galapagos Islands

Tim Laman / Galapagos giant tortoise (Geochelone nigra / Geochelone elephantopus) feeding (captive). Charles Darwin Research Station, Santa Cruz Island, Galapagos Islands.

Tui De Roy / Pinta Island Galapagos Tortoise (Chelonoidis nigra abingdoni), Lonesome George, the last survivor of his race, Darwin Reserve Station, Santa Cruz Island, Galapagos Islands, Ecuador

Pete Oxford / Giant tortoise {Geochelone elephantopus} Galapagos Islands, Ecuador Charles Darwin Research Stn

David Fleetham / Young boy taking photo of Galapagos giant tortoise (Geochelone elephantopus) at Charles Darwin Research Station in Puerto Ayora, Santa Cruz Island, Galapagos, Ecuador. Model released.

Will Watson / Down House, Charles Darwin's long-term residence and Darwin Museum, English Heritage, Downe, Greater London, England, UK, July.