Order Rodentia
SquirrelFamily:Sciuridae
Photo: RunnerJenny@flickr.com License: Creative Commons attrib/noncom/noderiv
ChipmunkFamily:Sciuridae
Photo: Vickis Nature@flickr.com License: Creative Commons attrib/noncom/noderiv
MarmotFamily:Sciuridae
Photo: Tearsandrain@flickr.com License: Creative Commons attrib/noncom/sharealike
Prairie DogFamily:Sciuridae
Photo: Thomas Hawk@flickr.com License: Creative Commons attrib/noncom
BeaverFamily:Castoridae
Photo: sherseydc@flickr.com License: Creative Commons attrib/sharealike
Kangaroo RatFamily:Heteromyidae
Photo: US Fish & Wildlife@Wikimedia Commons License: Public Domain
Bottas Pocket GopherFamily:Geomyidae
Photo: ChuckThePhotographer@flickr.com License: Creative Commons attrib
JerboaFamily:Dipodidae
Photo: wetwater@flickr.com License: Creative Commons attrib/noncom/sharealike
Roborovskis Dwarf HamsterFamily:Cricetidae
Photo: Bulli@Wikimedia Commons License: Creative Commons attrib/sharealike
Bank VoleFamily:Cricetidae
Photo: soebe@Wikimedia Commons License: Creative Commons Free Documentation License
MuskratFamily:Cricetidae
Photo: auburnxc@Wikimedia Commons License: Creative Commons attrib/sharealike
Deer MouseFamily:Cricetidae
Photo: US National Park Service@Wikimedia Commons License: Public Domain
GerbilFamily:Muridae
This family includes old world (European) rats and mice. Photo: Wikimedia Commons License: Public Domain
SpringhaasFamily:Pedetidae
Photo: brick1083@flickr.com License: Creative Commons attrib/noncom
GundiFamily:Ctenodactylidae
Photo: Threedots@Wikimedia Commons License: Public Domain
Naked Mole RatFamily:Bathyergidae
Photo: The One True b!X@flickr.com License: Creative Commons attrib/noncom/noderiv
African PorcupineFamily:Hystricidae
Photo: WxMom@flickr.com License: Creative Commons attrib/sharealike
North American PorcupineFamily:Erethizontidae
Photo: dborronoss@flickr.com License: Creative Commons attrib/noncom/noderiv
ChinchillaFamily:Chinchillidae
Photo: guppiecat@flickr.com License: Creative Commons attrib/noncom/noderiv
CapybaraFamily:Caviidae
Photo: Adrian Pingstone@Wikimedia Commons License: Public Domain
CapybarasFamily:Caviidae
Photo: Márcio Cabral de Moura@flickr.com License: Creative Commons attrib/noncom/noderiv
Guinea PigFamily:Caviidae
Photo: law_keven@flickr.com License: Creative Commons attrib/sharealike
Red-Rumped AgoutiFamily:Dasyproctidae
Photo: guppiecat@flickr.com License: Creative Commons attrib/noncom/noderiv
NutriaFamily:Myocastoridae
Photo: Clod79@flickr.com License: Creative Commons attrib/noncom/noderiv
HutiaFamily:Capromyidae
Photo: Joachim S. Müller@flickr.com License: Creative Commons attrib/noncom/sharealike
33 Families, 2277 Species
Rats, mice, squirrels, capybara
Worldwide (not Antarctica)
Incisors & cheek teeth separated by diastema, ever–growing incisors
6 g to over 50 kg.