Muroidea

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1. GiGi
   

   Muroidea is a large superfamily of rodents. It includes hamsters, gerbils, true mice and rats, and many other relatives. They occupy a vast variety of habitats on every continent except Antarctica. Some authorities have placed all members of this group into a single family, Muridae, due to difficulties in determining how the subfamilies are related to one another. The following taxonomy is based on recent well-supported molecular phylogenies.
   
   The muroids are classified in 6 families, 19 subfamilies, around 280 genera and at least 1300 species.

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