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Complete Nuclear DNA of Tasmanian Tiger Is Sequenced

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发表于 12-13-2017 13:15:45 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
(1) Thylacine
https://en.wikipedia.org/wiki/Thylacine
(is commonly known as the Tasmanian tiger (because of its striped lower back); shy, nocturnal; about "a medium-to-large-size dog")

Quote: "The thylacine was one of only two marsupials to have a pouch in both sexes (the other being the water opossum). The male thylacine had a pouch that acted as a protective sheath, covering his external reproductive organs while he ran through thick brush. * * * The common name [thylacine] derives directly from the genus name, originally from the Greek θύλακος (thýlakos), meaning 'pouch' or 'sack.' * * * The thylacine was able to open its jaws to an unusual extent: up to 80 degrees [On Dec 12 WSJ had a news report in print saying ‘120 degrees’ with a photo of that to show].

(2)
(a) Ewen Callaway, Tasmanian Tiger Genome Offers Clues to Its Extinction. Nature, _: _ (in the section News; print date Dec 11, 2017).
https://www.nature.com/articles/d41586-017-08368-1

Note:
(i)
(A) Ewen or Ewan
https://en.wikipedia.org/wiki/Ewen
(pronunciation in table; "Owen is the predominant Welsh spelling of the name, but Iwan and Iuan are also found")

* Ewan McGregor
https://en.wikipedia.org/wiki/Ewan_McGregor
(1971- ; a Scottish actor)
* Owen
https://www.merriam-webster.com/dictionary/Owen
(pronunciation)
(B) The English surname (of Norman origin) Callaway is from a place name presently known as "Caillouet-Orgeville in Eure, France, named with a collective form of Old Northern French cail(ou) pebble."
(C) "The last known thylacine, a marsupial predator that once ranged from New Guinea to Tasmania, died on 7 September 1936 in a zoo in Hobart, Australia. * * * The species' range throughout Australasia shrivelled as early hunter-gatherers expanded across the region [archaeology: humans arrived in Australia ~50,000 years ago], and the introduction by humans of the dingo (Canis lupus dingo [gray/grey wolf: Canis lupus; domestic dog: Canis lupus familiaris -- canis and lupus are Latin nouns masculine for 'dog' and 'wolf,' respectively] ) to Australia several thousand years ago reduced numbers still further, leaving an isolated thylacine population clinging on only in Tasmania."
* Hobart
https://en.wikipedia.org/wiki/Hobart
* dingo
https://en.wikipedia.org/wiki/Dingo
(the word came from aborigine language; section 2 Taxonomy, section 2.3 Lineage: view maps + "The archaeological record shows that the earliest dingo skeletal remains in Australia date to 3,450 years before present (YBP) from the Mandurah Caves on the Nullabor Plain, south-eastern Western Australia")

(b) Feigin CY et al, Genome of the Tasmanian Tiger Provides Insights into the Evolution and Demography of an Extinct Marsupial Carnivore. Nature Ecology and Evolution, _: _ (online publication Dec 11, 2017).
https://www.nature.com/articles/s41559-017-0417-y
("Historically the thylacine was broadly distributed across Australia before becoming extinct on the mainland around 3,000 years ago1. A Tasmanian population became isolated by rising sea levels approximately 14,000 years ago * * * European settlers deemed the thylacine a threat to the Tasmanian sheep industry * * * the marsupial thylacine was phenotypically almost indistinguishable from a eutherian canid")

My comment: This article is free to read. There is no need to read the rest.
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