High Quality Content by WIKIPEDIA articles! A shrew or shrew mouse is a small mammal classified in the order Soricomorpha. True shrews are also not to be confused with West Indies shrews, treeshrews, otter shrews, or elephant shrews, which belong to different families or orders. Although its external appearance is generally that of a long-nosed mouse, a shrew is not a rodent, as mice are, and not closely related to rodents. Like mice, shrews have 5 toes. However, shrews have sharp, spike-like teeth, not the familiar gnawing front incisor teeth of rodents. Shrews are distributed almost worldwide: of the major tropical and temperate land masses, only New Guinea, Australia, and New Zealand do not have native shrews at all; in South America, shrews are relatively recent immigrants and are present only in the northern Andes. In terms of species diversity, the shrew family is the fourth most successful of the mammal families, being rivalled only by the muroid rodent families Muridae and Cricetidae and the bat family Vespertilionidae.

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