![]() Click the link for more information., hamster hamster, (9–18 cm) and have rounded bodies with gray or brown coats, blunt muzzles, small ears concealed in the long fur, and short tails. Name for a large number of mouselike rodents, related to the lemmings. The cosmopolitan family Cricetidae includes the native New World mice, such as the deer mouse, American harvest mouse ( Reithrodontomys), the carnivorous grasshopper mouse, the South American field mice, the pack rat, and the rice rat it also includes the various Old and New World species of vole vole, ![]() The Old World family Muridae includes the now ubiquitous house mouse, as well as a great variety of wild-living Old World species, including the Old World field mouse, the tiny European harvest mouse ( Micromys minutus) and the African tree mice. The approximately 1,100 species in this enormous group are classified in several families. Most, but not all, of the rodents called mice are members of the rodent subclass Myomorpha, or mouselike rodents. Many small rodents are adapted for leaping or hopping and are named accordingly, e.g., the North American kangaroo rat and Asian jumping mouse. Click the link for more information. is in size: mice are usually smaller. It refers particularly to the two species of house rat, Rattus norvegicus, the brown, or Norway, rat and R. ![]() Name applied to various stout-bodied rodents, usually having a pointed muzzle, long slender tail, and dexterous forepaws. The chief distinction between these animals and the variety of rodents called rats rat, Click the link for more information., often having soft gray or brown fur, long hairless tails, and large ears. The Rodentia is by far the largest mammalian order nearly half of all mammal species are rodents. ![]() Member of the mammalian order Rodentia, characterized by front teeth adapted for gnawing and cheek teeth adapted for chewing. Mouse, name applied to numerous species of small rodents rodent, ![]()
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