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 / Copperplate engraving of a Stag Beetle (Lucanus cervus), with hand colouring possibly by Donovan himself. While most plates were thinly coloured to tint the interstices of the lines of the engraving b...

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...

Bernard Castelein / Straw-coloured fruit bat (Eidolon helvum), female flying carrying pup on front. Lamin, Gambia.

Bernard Castelein / Straw-coloured fruit bat (Eidolon helvum), female flying carrying pup on front. Lamin, Gambia.

Bernard Castelein / Straw-coloured fruit bat (Eidolon helvum), male flying, Lamin, Gambia.

Paul D Stewart / Illustration of mythical Unicorn, also known as Monoceros, by engraver Matthaus Merian 'the Elder', hand coloured copperplate engravings from 'Historia Naturalis', 1657.

Paul D Stewart / The Sea Orm, a mythical sea serpent of Norway. Copper plate and hand coloured, from Historiae Naturalis by John Jonston, 1657 Illustrated by Caspar and Matthias Merian.

Paul D Stewart / Lupus Marina - a sea wolf - Folio Copper Plate, later hand coloured. Published 1657-65 Amsterdam, for Historiae Naturalis by John Jonston. Illustrated by Caspar and Matthias Merian. These creatures ar...

Solvin Zankl / Tadpoles from the Majorcan midwife toad (Alytes muletensis) taken for scientific research. Torrent de s'Esmorcador, Majorca, Spain, April 2009.

David Tipling / Hand coloured engraving dating to 1858 depicting fishermen with trained Great Cormorants (Phalacrocorax carbo).

David Tipling / Hand coloured etching plate of Nightjar / Goat sucker (Caprimulgus) feeding on Mole Cricket (Gryllotalpidae) from The Natural History of Carolina, Florida and the Bahama islands (1731-43) Vol. 1 by Ma...