| 翻訳と辞書 |
| Tufted ground squirrel ： ウィキペディア英語版 |
Tufted ground squirrel
The tufted ground squirrel〔 or groove-toothed squirrel〔 (''Rheithrosciurus macrotis'') is a species of rodent in the family Sciuridae. It is the sole species in the genus ''Rheithrosciurus''. It is found only on the island of Borneo, which is divided between Indonesia, Brunei and Malaysia.〔(【引用サイトリンク】title=Rheithrosciurus macrotis )〕 It is reputed to be a ferocious carnivore that ambushes deer and attacks domestic chickens, draining their blood and eating their hearts and livers, though this behaviour has never been observed scientifically. Confirmed elements of its diet include nuts, seeds and insects, for which it has been filmed foraging on the forest floor.
==Description==
The squirrel's head and body measure about 335-352 mm (13.1-14 inches) long, with the tail measuring a further 299-342 mm (11.7-13.4 inches) long. It weighs about 1-2 kg (2.2-4.4 lb). Its incisors have 7-10 distinctive longitudinal grooves. Its skull is also distinctive, being longer and flatter than most squirrels. The animal's dorsum is predominately brown with a reddish tone, and it has unusually hairy ears with large red to dark brown tufts. A longitudinal stripe of a white to buff to yellow colour, sometimes accompanied by a dark brown stripe, runs along the flank.〔
''Rheithrosciurus'' is noted for having the largest known tail to body size ratio of any mammal, with its tail being 30 percent larger by volume than its body. It is unclear why the squirrel has such a large tail but scientists have suggested that it may have evolved to distract predators or to prevent them getting a firm grasp when attacking. It may alternatively have a function in communicating with other squirrels or in courtship. Other possible explanations, such as being used to keep the animal warm or for balance, seem unlikely as the squirrel lives on the ground in a warm region. The tail has a grizzled charcoal colour with white frosting and rises in a plume, with the longest hairs at the tip.
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「Tufted ground squirrel」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|