Rat
Rodents
Rattus is a genus of muroid rodents, all typically called rats. However, the term rat can also be applied to rodent species outside of this genus. Wikipedia
Scientific name: Rattus
Term for young: kitten and pup
Class: Mammalia
Gestation period: Brown rat: 21 – 24 days, Black rat: 23 days, and Polynesian rat: 21 – 24 days
Collective noun: colony, mischief, pack, and more
Lower classifications