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Gambian pouched rat
The Gambian pouched rat (''Cricetomys gambianus''), also known as the African giant pouched rat, is a nocturnal pouched rat of the giant pouched rat genus ''Cricetomys''. It is among the largest muroids in the world, growing up to about long including their tail which makes up half their length.〔 It is widespread in Sub-Saharan Africa, ranging geographically from Senegal to Kenya and from Angola to Mozambique (although it is absent from much of the DR Congo, where Emin's pouched rat is present) and in altitude from sea level to .〔
==Characteristics==
The Gambian pouched rat has very poor eyesight and so depends on its senses of smell and hearing. Its name comes from the large, hamster-like pouches in its cheeks. It is not a true rat but is part of an African branch of muroid rodents. It typically weighs between .〔Kingdon, J. (1997). The Kingdon Field Guide to African Mammals. p. 199-200. ISBN 0-12-408355-2〕 In its native Africa, the pouched rat lives in colonies of up to twenty, usually in forests and thickets, but also commonly in termite mounds. It is omnivorous, feeding on vegetables, insects, crabs, snails and other items, but apparently preferring palm fruits and palm kernels.
Unlike domestic rats, it has cheek pouches like a hamster. These cheek pouches allow it to gather up several kilograms of nuts per night for storage underground. It has been known to stuff its pouches so full of date palm nuts so as to be hardly able to squeeze through the entrance of its burrow. The burrow consists of a long passage with side alleys and several chambers, one for sleeping and the others for storage. The Gambian pouched rat reaches sexual maturity at 5–7 months of age. It has up to four litters every nine months, with up to six offspring in each litter. Males are territorial and tend to be aggressive when they encounter one another.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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