Rodentia

Rodents are mammals of the order Rodentia, characterised by a single pair of continuously growing incisors in each of the upper and lower jaws which must be kept short by gnawing. Forty percent of mammal species are rodents, and they are found in vast numbers on all continents other than Antarctica. Common rodents include mice, rats, squirrels, porcupines, beavers, guinea pigs, and hamsters. Rodents use their sharp incisors to gnaw wood, break into food, and bite predators. Most rodents eat seeds or plants, though some have more varied diets. For more information, visit the Wikipedia entry. Get back to Eutheria
Beavers	Capybara	Chipmunk
Naked mole-rat	Flying squirrels	Giant kangaroo rat
Guinea Pig	Hamster	†Horned gopher
Japanese dormouse	Jerboa	†Little Swan Island hutia
Long-tailed chinchilla	Marmots	Mongolian gerbil
New World porcupine	Old World porcupines	Old World rats and mice
Springhare	Tree squirrels	Unstriped ground squirrel
Voles, lemmings and muskrats