Rodents

Children:
* Rodent protagonist
* Rats
* Mice

Rats, Porcupines, mice, capybara, squirrels, gophers, beavers, nutria, hamsters, chipmunks, prairie dogs, marmots, guinea pig, groundhog.

NOT rabbits, hares, pikas (those are Lagomorph)
NOT weasels, badgers, wolverines, ferrets, possums, raccoons, minks, mongooses, otters
NOT aardvarks, anteaters, armadillos, bandicoots, bats, echidnas, hedgehogs, lemurs, martens, meerkats, moles, moonrats, mouse deer, polecats, deer, platypuses, rat kangaroos, shrews, skunks, sloths, solenodons, stoats, sugar gliders, wombats.