Identification
Sigmodontinae (South American rats and mice)
Rhizomyinae (bamboo rats and mole rats)
Sciuridae (squirrels)
Echimyidae (spiny rats)
Dasyproctidae (acuchis and agoutis)
Erethizontidae (New World porcupines)
Permissions for Use

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.

Location
University of Michigan Museum of Zoology
Caption
rodent jaw structure (hystricognathy vs. sciurognathy)
Contributors
Phil Myers (photographer; copyright holder), Museum of Zoology, University of Michigan
Animal Diversity Web Staff (photographer)



