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Siberian chipmunk : ウィキペディア英語版 | Siberian chipmunk
The Siberian chipmunk or common chipmunk (''Eutamias sibiricus'') appears across northern Asia from central Russia to China, Korea, and Hokkaidō in northern Japan.〔(【引用サイトリンク】url=http://eol.org/pages/313026/details )〕 The Siberian chipmunk was imported from South Korea and introduced in Europe as a pet in the 1960s.〔 It is the only chipmunk found outside North America, and this animal is classed either as the only living member of the genus ''Eutamias'', or as a member of a genus including all chipmunks. ==Description==
Although these animals can exhibit slight variations in coloration in different geographic regions, they possess several common characteristics.〔 Typically the Siberian chipmunk has 4 white stripes and 5 dark stripes along the back.〔 It is 18–25 cm long, a third of which is the tail.〔 The weight of adults depends on the time of year and food availability.〔 Even though the Siberian chipmunk normally grows to 50–150 grams, this species is relatively small compared to other Sciuridae, such as the Red Squirrel.〔 The Siberian chipmunks are not known to exhibit sexual dimorphism, and size and body proportions are the only way to distinguish younger chipmunks from older ones. Their small size may contribute to their relatively short lives, which tend to range from 2 to 5 years in the wild.〔 However, when placed in captivity, as seen in Europe in the 1960s, they have the potential to live anywhere from 6 to 10 years.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Siberian chipmunk」の詳細全文を読む
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