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This is a list of mammals of Great Britain. The Great Britain mammal fauna is somewhat impoverished compared to that of continental Europe due to the short period of time between the last ice age and the flooding of the land bridge between Great Britain and the rest of Europe. Only those land species which crossed before the creation of the English Channel and those introduced by humans exist in Great Britain. Great Britain holds a small (Scottish) population of European wildcats, important populations of grey seals, and rare bat species. Native (usually synonymous with "indigenous") species are considered to be species which are today present in the region in question, and have been continuously present in that region since a certain period of time. When applied to Great Britain, three possible definitions of this time constraint are: * a species that colonised the islands during the glacial retreat at the end of the last ice age (c.9500 years ago); * a species that was present when the English Channel was created (c.8000 years ago); * or, a species that was present in prehistory. This list includes mammals from the small islands around Great Britain and the Channel Islands. There are no endemic mammal species in Great Britain, although four distinct subspecies of rodents have arisen on small islands. The following tags are used to highlight each species' conservation status as assessed by the IUCN: == Rodents == Superorder: Euarchontoglires Order: Rodentia Rodents make up the largest order of mammals, with over 40 percent of mammalian species. They have two incisors in the upper and lower jaw which grow continuously and must be kept short by gnawing. Most rodents are small though the coypu (once introduced to Great Britain, but subsequently eradicated) can weigh up to 9 kg (15.5 lb). Family: Castoridae (beavers) *Eurasian beaver ''Castor fiber'' – Reintroduced Family: Cricetidae (voles) *Bank vole ''Myodes glareolus'' *Field vole ''Microtus agrestis'' *Common vole ''M. arvalis'' *Water vole ''Arvicola terrestris'' Family: Muridae (rats, mice and relatives) *Harvest mouse ''Micromys minutus'' *Wood mouse ''Apodemus sylvaticus'' *Brown rat ''Rattus norvegicus'' - Introduced *Yellow-necked mouse ''A. flavicollis'' *House mouse ''Mus musculus'' *Black rat ''Rattus rattus'' - Introduced Family: Gliridae (dormice) *Hazel dormouse ''Muscardinus avellanarius'' Family: Sciuridae (squirrels) *Red squirrel ''Sciurus vulgaris'' 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「List of mammals of Great Britain」の詳細全文を読む スポンサード リンク
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