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| Tasmanian tiger | |
|---|---|
| Name | Tasmanian tiger |
| Status | Extinct (IUCN EX) |
| Extinct | 1936 |
| Genus | Thylacinus |
| Species | cynocephalus |
Tasmanian tiger was a carnivorous marsupial native to Australasia, renowned for its striped hindquarters and doglike body. Once widespread across Australia, Tasmania, and New Guinea, it became a focal point for debates in conservation, colonial policy, and zoology after European contact. The animal attracted study from figures in natural history, veterinary science, and museum curation and inspired searches by explorers, politicians, and scientific institutions.
Described in 1808 by George Prideaux Robert Harris and later named within the genus Thylacinus by John Edward Gray, the species was placed in the family Thylacinidae, order Dasyuromorphia, and broader clade Marsupialia. Nineteenth-century taxonomists such as Richard Owen, Charles Darwin, and Alfred Russel Wallace discussed its affinities with dasyurids like Dasyurus and with convergent placental canids such as Canis lupus and Vulpes vulpes. Paleontologists including Richard Thomas, Michael Archer, and Kieren Mitchell investigated fossil relatives from Pleistocene deposits at sites like Naracoorte Caves and Riversleigh, clarifying relationships with extinct genera such as Nimbacinus and Mutpuracinus. Molecular studies by teams led by Andrew Pask and laboratories at institutions like the University of Melbourne and the Natural History Museum, London used mitochondrial DNA and nuclear markers to compare the species with other Thylacoleonidae and marsupial taxa, revising divergence estimates against geological events such as the Pleistocene sea-level changes and the separation of New Guinea and mainland Australia.
Contemporary descriptions were recorded by naturalists including John Gould, Franklin Thomas, and field collectors working with museums in Hobart and Melbourne. The animal exhibited a slender muzzle reminiscent of specimens in collections of Zoological Society of London, a stiff tail resembling that noted by curators at the Australian Museum, and a pouch described in veterinary reports held at the Royal Society of Tasmania. Pelage, documented in taxidermy at institutions like the Smithsonian Institution and the Australian National University collections, showed distinctive transverse stripes over the rump similar to patterning remarked upon by illustrators working with Joseph Bancroft and George Bennett. Skeletal morphology preserved in osteological repositories at the Museum Victoria and the South Australian Museum informed functional analyses by comparative anatomists such as Tim Flannery and Charles S. Elton.
Historical records compiled by colonial administrations in Hobart Town, field diaries of explorers linked to expeditions like those of Matthew Flinders and Thomas Mitchell, and Aboriginal oral histories from groups such as the Palawa mapped occurrences across mainland regions including New South Wales, Victoria, and Queensland before contraction to Tasmania. Specimen locality data held at the British Museum and survey reports from agencies in Van Diemen's Land described habitats ranging from dry sclerophyll woodlands near Mount William to wet eucalypt forest around Cradle Mountain, and riverine environments along the Derwent River. Palaeoecological reconstructions using pollen records from the Lake Eyre Basin and sediment cores from King Island supported shifts in range driven by climatic oscillations during the Holocene and anthropogenic landscape changes following European colonisation.
Field notes by shepherds, trappers, and naturalists archived in the Tasmanian Museum and Art Gallery and accounts submitted to newspapers such as the Hobart Town Gazette described nocturnal habits, cursorial locomotion, and a diet inferred from stomach contents in museum specimens, including marsupials like Macropus rufus and rodents such as Rattus rattus. Ecologists including Mike Archer and wildlife biologists affiliated with the Department of Primary Industries and Water (Tasmania) modelled trophic roles in ecosystems shared with predators like Dingos on the mainland and competitors such as the introduced Canis familiaris and feral Felis catus. Reproductive biology studies by veterinary researchers at the University of Sydney examined pouch development and reproductive cycles, comparing them to fellow marsupials studied by scholars at the Commonwealth Scientific and Industrial Research Organisation.
Decline accelerated after European settlement, with bounties instituted under colonial legislation enforced by authorities in Van Diemen's Land and anecdotal reports published in the Launceston Examiner. Agricultural expansion, habitat loss around settlements like Swansea, Tasmania, and disease hypothesised by researchers at the CSIRO contributed alongside direct persecution. Museum accession data and the death of the last captive individual at the Beaumaris Zoo (often associated with keepers at the Hobart Zoo) in 1936 marked a terminus used by the IUCN for extinction status assessments. Scholarly debates involving historians such as Tom Griffiths and conservationists from organisations like the World Wildlife Fund evaluated policy failures and the role of colonial governance in species loss.
Post-extinction reports persisted in regional papers like the Examiner (Tasmania) and were investigated by amateur groups, private investigators, and official surveys commissioned by agencies such as the Tasmanian Department of Primary Industries and non-governmental organisations including the Australian Geographic Society. High-profile expeditions organised by figures connected to the Royal Geographical Society and media outlets like the BBC and National Geographic deployed camera traps, thermal imaging, and acoustic surveys to inspect wilderness areas including Southwest National Park and Arthur-Pieman Conservation Area. Statistical analyses by university teams from University of Tasmania and Monash University assessed probability models of persistence, while courtroom-style evidentiary reviews involved museum curators and forensic experts from the Australian Federal Police when photographic or footprint evidence surfaced.
The species became an emblem in art, literature, and policy, inspiring works by authors such as Colin Thiele and artists represented at galleries like the National Gallery of Victoria. It featured in public discourses involving politicians from the Tasmanian Parliament and conservation campaigns led by organisations including the Australian Wildlife Conservancy. Commemorations occur in exhibitions at the Tasmanian Museum and Art Gallery and in educational curricula at institutions such as the University of Melbourne and Deakin University. The animal appears in popular culture through films produced by studios associated with Australian Broadcasting Corporation and in merchandise sold by the Tasmanian Devil Centre, influencing tourism in regions like Cradle Valley and contributing to ongoing scientific initiatives in de-extinction debates involving laboratories such as the University of Adelaide.
Category:Extinct marsupials