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Related to Sciuridae: Heteromyidae, Muridae, Geomyidae, Cricetidae, Dipodidae, Muridæ
a mammalian family of the order Rodentia. Sciuridae include animals that differ in their external appearance and modes of existence but are united by their origin and the similarity of their anatomical structure. The family includes 47 genera that are grouped into two subfamilies, squirrels and flying squirrels. The tail of Sciuridae is thickly covered with long hairs. Flying squirrels have skin membranes along the sides of their bodies. They have 20 to 22 teeth. They are very widely distributed, but they are not found in Australia, New Guinea, Madagascar, northwestern Africa, and the southern part of South America.