PAUL D STEWART / SCIENCE PHOTO LIBRARY PAUL D STEWART / SCIENCE PHOTO LIBRARY
Tasmanian wolf (Thylacinus cynocephalus), 19th-century illustration. Also called the thylacine, this species of marsupial is considered extinct. The last confirmed sighting in the wild was in Tasmania in 1933, and the last captive animal died in 1936. None have been found since, despite extensive searches. Unrelated to the dog or wolf, the thylacine was about the size of a small wolf, making it the largest marsupial carnivore in recent times. Fossils of the species have been found in New Guinea, Australia and Tasmania. This artwork by the French naturalist and physician Jean-Emmanuel-Marie Le Maout (1799-1877) was published in 'Les Trois Regnes de la Nature' (1853, The Three Kingdoms of Nature).
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