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.

Paul D Stewart / Two species of weevil showing the size disparity even in single families of insect. The larger is the Bamboo weevil of East Asia Cyrtotrachelus dux, the smaller is identified (perhaps misidentified) o...

Paul D Stewart / Aerial view of Grand Prismatic thermal spring in Yellowstone National Park, USA. The bright colours are natural, coming from thermophile bacteria in the water. People can be seen walking on the raised...

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

Paul D Stewart / Photomontage of living gecko feet showing a variety of forms. Gecko feet employ very small subdivided filaments to bond with their substrates at the molecular level using Van Der Waals' forces. Every...

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...

Paul D Stewart / 'Martha' the last passenger pigeon, (Ectopistes migratorius), who died Cincinnati Zoo, September 1st, 1914. This portrait of her published in March 1915 as the Frontispiece to William Hornaday's 'The...

Paul D Stewart / Restoration of the Iguanodon by Alice B. Woodward from Lydekker's The Royal Natural History' Frederick Warne and co, 1896. This is one of the first reconstructions to correctly show the Iguanodon's th...

Paul D Stewart / Landscape of the Triassic coastal environment with reconstructions of dinosaurs and marine reptiles, 'Dr. Schubert's Naturgeschichte - Geologie, Mineralreich, Palaontologie'. Published in Stuttgart 18...

Paul D Stewart / Illustration of vivid colour lithograph for 'Dr. Schubert's Naturgeschichte - Geologie, Mineralreich, Palaontologie'. Published 1888 in Stuttgart by J.F. Shreiber, the palaeontology section by Dr. Fri...

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 / Chromolithograph illustration of Cromagnon 'Skull of an old man' Plate 1, Section C. Edouard Lartet and Henry Christy. 'Reliquiae Aquitanicae' 1865-1875, Williams and Norgate, London 1875..

Paul D Stewart / Lithograph with contemporary colouring, continental version of the wallchart produced by Benjamin Waterhouse Hawkins for the Department of Science and Art 1862. It is entitled 'Enaliosauria, or marine...

Paul D Stewart / Lithograph with contemporary colouring, continental version of the last wallchart produced by Benjamin Waterhouse Hawkins for the Department of Science and Art 1862. It is entitled 'Pachydermata and C...

Paul D Stewart / Great Auk (Pinguinus impennis) from the Rev. Francis Orpen Morris' 'A History of British Birds' by the printer Benjamin Fawcett circa 1853. Morris was instrumental in founding the Royal Society for th...

Paul D Stewart / 1853 illustration of Gorilla, contemporary coloured copperplate engraving from 'Das Buch der Welt' John Weik, Stuttgart. The lowland Gorilla was first accurately described outside Africa by the missio...

Paul D Stewart / Skull of Moa or Dinornis discovered by Mr. Walter Mantell on the North Island of New Zealand. Plate with later tinting, from Gideom Mantell's petrifactions and their teachings (1851) published by Henr...

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...

Paul D Stewart / Illustration of trilobuite (Paradoxides bohemicus), Plate 1. From 'Organization of the Trilobites' by Hermann Burmeister, appearing in the Ray Society translation of his work published in 1846. The Il...

Paul D Stewart / Engraving of an ape-like cave man accompanying an article by Boitard in the French 'Magasin Universel' (April 1838). This is the earliest reconstruction of a pre-historic human. It is striking that it...

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 / Illustration of Giant Octopus (Octopus dofleini) attacking a ship, 1815 copperplate engraving from Bertuch's 'Bilderbuch fur kinder' 16 plate 5. with contemporary colour. 'Colosal Polypus' (octopus) a...

Paul D Stewart / Copperplate engraving of rays with contemporary hand colouring from 'Bilderbuch fur Kinder' by F.J. Bertuch, Weimar, 1795. This book set out to explain and illustrate a range of topics for children.

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 / Galapagos racer snakes (Pseudalsophis biserialis) group alert watching for prey on beach, Galapagos, June. Endangered species. Taken on location for BBC tv Blue Planet 2 series

Paul D Stewart / Photograph of Charles Darwin taken by Lock & Whitfield in 1877 and published in' Men of Mark' 1878.

Paul D Stewart / Three illustrations from Cassell's Pigeon Book, 1874 showing domestic pigeons: Red and Yellow Jacobin, Red-pied pouter cock with crop inflated, and Shield, Hyacinth and Suabian.

Paul D Stewart / Photograph of George John Romanes (1848-1894) Canadian born English naturalist, friend of Darwin, and author of Animal Intelligence and Mental evolution.

Paul D Stewart / Photograph of John Thomas Gulick (March 13, 1832 - April 14, 1923) an American missionary and naturalist from Hawaii. He performed some of the first modern evolutionary studies, starting with a colle...

Paul D Stewart / Composite of original line drawings from Darwin's 'Variation in Animals and Plants under Domestication' 1868. The ancestral form, the rock pigeon hangs up dead to the left while some of the many varie...

Paul D Stewart / Lithograph of the Moody Footmark Quarry in South Hadley, where Pliny Moody discovered the very first fossil tracks in 1802. From Hitchcock, Edward. Ichnology of New England. A Report on the Sandstone...

Paul D Stewart / Lithograph of a slab with multiple dinosaur trackways. From 'Ichnology of New England. A Report on the Sandstone of the Connecticut Valley, especially its Fossil Footmarks'. Boston: William White, 185...

Paul D Stewart / Lithograph of a dinosaur track from 'Ichnology of New England. A Report on the Sandstone of the Connecticut Valley, especially its Fossil Footmarks'. Boston: William White, 1858. The prints were first...

Paul D Stewart / The history of life, proposed by Swiss-American naturalist Louis Agassiz. Agassiz would disagree strongly with Darwin's theory of evolution. This diagram from 1855 shows how he understood biological...

Paul D Stewart / Illustration of African hunting dog (Lycaon pictus) profile, from W. Berthoud delt. W. Panormo sculp. from 'The wonders of the animal kingdom'. London, T. Kelly, 1830. This image is described as 'Tort...

Paul D Stewart / Illustration of Monitor lizard (Lacerta monitor) now known as the Nile monitor (Varanus niloticus) from J. Frid Gmelin and Carl Linnaeus (posthumous). 'A Genuine and Universal System of Natural Histo...

Paul D Stewart / Illustration 'An Orang-Outang carrying off a Negro Girl' Frontispiece from volume two of Sibly 'An universal system of natural history : including the natural history of man, the Orang-Outang and the...

Paul D Stewart / Illustration of Swallowtail Butterfly (Papilio machaon) on Fennel by Maria Sybella Merian 1683, from her book 'Caterpillars, Their Wondrous Transformation and Peculiar Nourishment from Flowers'. Meri...

Paul D Stewart / Illustration of Red admiral butterfly (Vanessa atalanta) life stages and parasites. By Maria Sybella Merian 1683, from her book 'Caterpillars, Their Wondrous Transformation and Peculiar Nourishment fr...

Paul D Stewart / Illustration of Aesop and the animals of his stories engraved by Leonard Gaultier from 'Les images ou tableaux de platte peintre des deux Philostrates Sophistes Grecs' by Flavius Philostratus and Bla...

Paul D Stewart / Illustration of Hornets and Wasps, from Arcana entomologica, or, Illustrations of new, rare, and interesting insects by J.O. Westwood, 1845.

Paul D Stewart / Illustration of Goliath Beetle (Goliathus goliatus) and Chafer beetles, from Arcana entomologica, or, Illustrations of new, rare, and interesting insects by J.O. Westwood, 1845

Paul D Stewart / Skull of an Falklands island wolf (Dusicyon australis). This species was declared extinct in 1879.

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 / Illustration of various types of mythical unicorns, also known as monoceros, by engraver Matthaus Merian 'the Elder', hand colored copperplate engravings from Historia Naturalis , 1657.

Paul D Stewart / Illustration of extinct Thylacine (Thylacinus cynocephalus) by the French naturalist and physician Jean-Emmanuel-Marie Le Maout (1799-1877), published in Les Trois Regnes de la Nature, 1853.

Paul D Stewart / Australasian fauna by Gustav Mutzel, 1892 - published in 'Meyer's Conversations Lexicon' of 1902. Including a Thylacine (Thylacinus cynocephalus), Cassowary (Casuarius), Echidna (Tachyglossidae), Duck...

Paul D Stewart / Shell of extant deep water squid Spirula (Spirula spirula) backlit and sectioned to show how the structure of partitions within the shell is reminiscent of the extinct ammonites and living nautiloids.