BearVia ThinkstockMouseVia ThinkstockDogVia ThinkstockAardvarkVia Thinkstock
Many have questioned the species of Arthur. From a mouse to a bear, there's been many speculations, but the truth is Arthur and his family are aardvarks.
MiceVia ThinkstockRatsVia ThinkstockGerbilsVia ThinkstockHamstersVia Thinkstock
Pinky and the Brain are just two mice trying to take over the world and failing terribly every time. Brain just needed a new sidekick, honestly.
KangarooVia ThinkstockWallabyVia ThinkstockDogVia Thinkstock
Hailing from Australia, it's no surprise that Rocko is one of Australia's most popular animals. Although a close cousin to the kangaroo, Rocko is in fact a wallaby.
DogVia ThinkstockCatVia ThinkstockMouseVia ThinkstockChinchillaVia Thinkstock
It should come as no surprise that crazy Ren is actually a hyper chihuahua who's always out of control.
FoxVia ThinkstockCatVia ThinkstockDogVia ThinkstockChinchillaVia Thinkstock
Cats are usually pretty smart but not this one. Stimpy was just as dumb as Ren was crazy.
CowVia ThinkstockDogVia ThinkstockHorseVia Thinkstock
Although it's totally unfair that Pluto is a pet when Goofy gets to walk around, Goofy is also a dog.
MongooseVia ThinkstockLemurVia ThinkstockMeerkatVia ThinkstockChivetVia Thinkstock
Timon is a loner meerkat. Unlike most meerkats, Timon left his family behind and started a new crew, with Pumbaa and later Simba.
WarthogVia ThinkstockPeccaryVia ThinkstockWild BoarVia ThinkstockPigVia Thinkstock
Never, ever call Pumbaa a pig. It's his biggest pet peeve. He is, and forever will be, a warthog.
FoxesVia ThinkstockCatsVia ThinkstockDogsVia Thinkstock
© 2019 BuzzFeed, Inc