La Giraffe (1837) by Florent Prevos (1794-1870), an illustration of an adorable giraffe. Digitally enhanced from our own… Free Image from public domain license 
Crested Porcupine, Hystrix cristata (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum.… Free Image from public domain license 
Catchpenny Print- Alphabet - Animals (1870) by Oliver Goldsmith (1728-1774), a print of alphabets and animals. Digitally… Free Image from public domain license 
Camelopardis Giraffe - The Giraffe (1837) by Georges Cuvier (1769-1832), an illustration of a beautiful giraffe and sketches… Free Image from public domain license 
Bilderbuch fur Kinder by Georg Melchior Kraus, published in 1790-1830, an illustration of long horned buffalo and skull.… Free Image from public domain license 
Sea turtle, Cheloniidae (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum. Digitally… Free Image from public domain license 
Superficial Layer of Muscles by an unknown artist (1904), a medical illustration of equine muscular system. Digitally… Free Image from public domain license 
Walking technique of the horse: trot and gallop from Weltall und Menschheit (1900) by Hans Kraemer. Digitally enhanced from… Free Image from public domain license 
The History of the Earth and Animated Nature by Oliver Goldsmith (1848), a pack of energetic dogs and playful puppies.… Free Image from public domain license 
Frog by a Dandelion with Flies (1877–1938) by Jan van Oort. Original from The Rijksmuseum. Digitally enhanced by… Free Image from public domain license 
Chimpangze (Troglodyte Chimpanze) illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own… Free Image from public domain license 
Illustration of domestic cat on a stool and three playful kittens by Gottfried Mind (1768-1814). Original from Library of… Free Image from public domain license 
Indian Antelope (Antilope cervicapra) Head and horn 1. Young; 2. Adult from Illustrations of Indian zoology (1830-1834) by… Free Image from public domain license 
Jaguar (Felis onca) from the viviparous quadrupeds of North America (1845) illustrated by John Woodhouse Audubon (1812-1862).… Free Image from public domain license 
Ocelot or Leopard-Cat (Felis pardalis) from the viviparous quadrupeds of North America (1845) illustrated by John Woodhouse… Free Image from public domain license 
Opossum (Didelphis) and Opossum (Didelphis) illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from… Free Image from public domain license 
Fails Leo illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892 edition of… Free Image from public domain license 
Ichthyology from A history of the earth and animated nature (1820) by Oliver Goldsmith (1730-1774). Digitally enhanced from… Free Image from public domain license 
Asiatic Elephant and Caparisoned Elephant from A history of the earth and animated nature (1820) by Oliver Goldsmith (1730… Free Image from public domain license 
Chameleon, Chamaeleonidae (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum. Digitally… Free Image from public domain license 
Asian elephant, Elephas maximus (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum. Digitally… Free Image from public domain license 
Wild boar, Sus scrofa (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum. Digitally enhanced… Free Image from public domain license 
Wisent or European bison, Bison bonasus (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum.… Free Image from public domain license 
Indian rhinoceros, Rhinoceros unicornis (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum.… Free Image from public domain license 
Beaver (Castor) and Jerboa (Dipus) illustrated by Charles Dessalines D' Orbigny (1806-1876) .Digitally enhanced from our own… Free Image from public domain license 
Lemur illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892 edition of Dictionnaire… Free Image from public domain license 
Different types of moths illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892… Free Image from public domain license 
Collection of butterflies illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892… Free Image from public domain license 
Different types of mollusks illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892… Free Image from public domain license 
Giant mantis shrimp (Squilla Maculata) illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our… Free Image from public domain license