Great Barrier Reef Fishes from The Great Barrier Reef of Australia (1893) by William Saville-Kent (1845-1908). Digitally… Free Image from public domain license 
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 
Royal bengal tiger from Johnson's household book of nature (1880) by John Karst (1836-1922). Free Image from public domain license 
Giraffe (Giraffa camelopardalis) illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own… Free Image from public domain license