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Tibetan wolf
The Tibetan wolf (''Canis lupus chanco''), also known as the woolly wolf, is a gray wolf subspecies native to Central Asia from Turkestan throughout Tibet to Mongolia, northern China and the Indian subcontinent. In Tibet and Ladakh it is known as ''chánkú'' or ''shanko''.〔Pocock, R. I. (1941). (''Canis lupus chanco'' ) Pages 86–90 in: ''Fauna of British India: Mammals Volume 2''. Taylor and Francis, London 〕
The Tibetan wolf is thought by some scientists to be the most likely ancestor of the domestic dog, on account of its small size and mandible morphology, noting that the uppermost part of the lower jaw is turned back on both the Tibetan wolf and the dog, though not so in other grey wolf subspecies.〔Olsen, S.J., Olsen, J.W. (1977). ''The Chinese wolf, ancestor of new world dogs''. Science 197: 533–535.〕
==Taxonomy==
Currently listed as a sub-species of ''Canis lupus''. In 2009, the Tibetan wolf was found to be genetically distinct enough to propose a separate species. In 2011, another genetic study found that the Tibetan wolf might be an archaic pedigree within the wolf subspecies, however the study defined ''Canis lupus laniger'' as the Tibetan wolf distinct from ''Canis lupus chanco'' the Mongolian wolf. In 2013, a major genetic study of dogs and wolves included the DNA sequences of 2 Tibetan wolves but then "excluded two aberrant modern wolf sequences from this analysis since their phylogenetic positioning suggests only a distant relationship to all extant gray wolves and their taxonomic classification as a member of ''Canis lupus'' or a separate sub-species is a matter of debate."
The taxonomic reference Mammal Species of the World (2005) does not recognize ''Canis lupus laniger'', however NCBI/Genbank does list ''Canis lupus laniger'' as the Tibetan wolf, and separately ''Canis lupus chanco'' as the Mongolian wolf.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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