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mice, rats, gerbils, and relatives


Mice, rats, gerbils, and relatives is the largest, most diverse, and most widespread group of rodents in the world. With more than 1500 species, it also represents about 38% of all mammal species in the world! This is an exceptionally diverse group, with all kinds of lifestyles, body sizes, and habitats represented. Members of this group are found throughout the world, except for Antarctica, New Zealand, and some small oceanic islands. Most members of this group are small mice and rats.


Tanya Dewey (author), Animal Diversity Web.


bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends.


uses smells or other chemicals to communicate


animals that generate their own body heat through metabolic processes.


having the capacity to move from one place to another.


reproduction that includes combining the genetic contribution of two individuals, a male and a female


uses touch to communicate

University of Michigan Museum of ZoologyNational Science Foundation

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Dewey, T. . "Myomorpha" (On-line), Animal Diversity Web. Accessed April 23, 2014 at

BioKIDS is sponsored in part by the Interagency Education Research Initiative. It is a partnership of the University of Michigan School of Education, University of Michigan Museum of Zoology, and the Detroit Public Schools. This material is based upon work supported by the National Science Foundation under Grant DRL-0628151.
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