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树鼩是一种低等的灵长类动物,近年来在复制疾病模型的研究中日益广泛应用,本文就这方面着重介绍以下。一、树鼩的形态和分类树鼩(Tupaia,Tree,shrews)是一种昼行性哺乳动物。体形象松鼠,体毛栗黄色,尾部毛发达,体长约18cm,尾长约16cm,成年体重90—180克左右。树鼩分布于亚洲东部和南部,在我国,主要分布于云南。树鼩在分类学上一直有争议。有人把它划归食虫目,有人认为树鼩是介于食虫目与灵长目之间的代表。但大多数人把树鼬划归灵长目,认为树鼩是在大约第三纪从食虫目向灵长目演化过程中,幸存保留至今的少数几个灵长目的原宗,是最低等的灵长类动物,具有灵长
Tree shrew is a kind of lower primate, which has been widely used in the research of replication disease model in recent years. This article focuses on the following aspects. A tree shrew morphology and classification Tree shrew (Tupaia, Tree, shrews) is a diurnal mammal. Squirrel body shape, body hair chestnut, hair tail, body length of about 18cm, tail length of about 16cm, adult body weight of about 90-180 grams. Tree shrews distributed in eastern and southern Asia, in our country, mainly in Yunnan. Tree shrews have been taxonomically controversial. Some people put it under the insectivorous head, some people think that tree shrews between the insectivorous eyes and primates. Most people, however, put the meerkat into primate, arguing that the tree trunks are the primate primates that survived to this day about the evolution from insectivism to primate, and are the lowest primates , With primacy